Comparison of digital cameras ~~~~

Jeanette

November 30, 2022 at 11:46 pm

Digital camera (also known as: Digital camera English Full name: Digital Camera abbreviated)

digital camera. It is a camera that uses electronic sensors to convert optical images into electronic data. Different from the chemical changes of cash bromide on the film on the film on the film, the principle of the image is recorded. The sensor of the digital camera is a light-sensitive charged coupling- {zh-cn: device; zh-tw: component}-(CCD ) Or a complementary metal oxide semiconductor (CMOS). Before the image transmission is transmitted to the computer, it is usually stored in digital storage devices (usually flash memory; soft disk and repeated rubbers (CD-RW) are rarely used for digital camera equipment).

D digital camera is a product that integrates optical, mechanical, and electronic integration. It integrates the conversion, storage and transmission of image information, has the characteristics of digital access mode, interacting with computer and real -time shooting. Digital cameras first appeared in the United States. More than 20 years ago, the United States used it to send photos to the ground through satellites. Later, digital photography turned into civilian use and continued to expand its application scope.

[Advantages of digital camera]
1. You can see the picture immediately after taking pictures, so as to provide the possibility of re -shooting the dissatisfaction work immediately and reduce the occurrence of regret.
2. Just pay for those photos that you want to rinse, and other unwanted photos can be deleted.
3. Color reduction and color range no longer rely on the quality of the film.
4. The sensitivity is no longer fixed due to film. Optical conversion chips can provide a variety of sensitivity choices.

[Birth of a digital camera]

The history of digital cameras can be traced back to the 1940s of the last century. With the promotion of TV, people need a kind of being able to be able to be in the same way. The device recorded by the broadcast TV show. In 1951, Bin Crosby laboratory invented the video recorder (VTR). This new machine can record the current pulse of the TV broadcast to the tape. By 1956, video recorders began to produce a large amount. At the same time, it is regarded as electronic imaging technology.

5. Waterproof and dust -proof "Million Pixels" machine appeared on the Bigjobds -25OHD digital camera, which is based on Fuji CCD total pixels of 1.5 million cameras. Power -dedicated jacket, plus a "million pixel" waterproof and dustproof special digital camera composed of a large flash of HD and GN24.

Cneca DG -1 digital camera was launched in September 1998. It also has a digital camera with a 7 -level waterproof and dustproof design with a total pixel of 1.08 million pixels. The fuselage and important parts are protected by hard rubber materials. Suitable for surveillance on the site of civil engineering, the image can be transmitted immediately and printed to the engineering records and work report documents.

It, some companies have developed a special waterproof dust jacket. For example, Kodak launched a waterproof dustproof jacket for DC200, DC210zoom, and three models. The company also launched a special waterproof jacket for the two models of A5zoom.

6. "Personalized" development is a new highlight of the development of digital cameras. With the fierce competition, the characteristics of the product are becoming more and more obvious. The characteristics of the manufacturer are as follows:

Sony: The equipment is 10 times -14 times the zoom lens. It uses soft disk to record static and dynamic images, which can be replicated in the machine.

Inonalian: miniaturization, taking APS small camera shape, SLR high -resolution image, large storage space.

Cascio: Low -grade, multifunctional, large LCD display, lens can rotate.

Fuji film: take traditional film small cameras, high -resolution portraits, low -priced; ultra -small, metal cases, multi -functional, multi -characteristics, fashion.

Kodak: High -solution, high -tech content; lower price, larger storage capacity, and providing more software.

Ding porcelain: Take the unique vertical shape of the traditional camera, highly solve the portrait.

HP: High -solution, extensive adaptability, low -cost.

Konica: High -decomposition portrait, operation method is close to traditional film small cameras.

Meineda: High -solving image, lens -CCD unit can rotate and separate.

Nikon: ultra -light small, higher resolution, complete function, simple operation.

Olympica: high -resolution portrait, zoom, lens non -replaceable SLR camera; economy, portable.

The Panasonic Electronics: Small, higher resolution, mid -range price.

This: Low -priced, lens rotation, special effects software.

Toshiba: Economy, high -resolution, use SM card.

Akfa: economic practical, high -resolution, and lens can be rotated; Seiko Eponia: High -solving image, panoramic photo function, both memory and mobile memory cards.

7. The new storage media "Memory Baseball" came out to launch a new type of storage media to the market in September 1998- "Memory Baseball". And 8MB of MSA -8A. The volume is long, that is, small and thin, it is very convenient to pull out or insert. Technical characteristics: 10 -needle connecting, serial interface, maximum writing speed of 1.5MB / s, maximum reading speed 2.45MB / s, power supply voltage 2.7-3.6V, the average consumption current at the time Size: 21.5 × 50 × 2.8mm; about 4 grams.

The MSAC -PCI PC card adapter also launched.

The new SLR digital camera for "Memory Stick" -D700, 5 times zoom lens (equivalent to 35mm camera focal length 28-140mm / F2-24) 1.5 million pixel CCD, 2.5 -inch display, 2.5 -inch display,, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, and 2.5 inch display, Rich function, suitable for professional use and other professional use.

8. Price positioning generally decreases the price positioning of popular digital cameras at the beginning, about 1,000 US dollars in the US market, and positioning in the Japanese market is about 200,000 yen. The total pixels of the CCD image sensor of the product at that time were generally 30-35 million pixels. By the end of 1998, the price dropped significantly. For example, the ray -ray RDC -4200 digital camera of the "million pixels", the minimum price of 499 US dollars, and the market price of the same type of camera in 1997 was about $ 1,300. The decline is large. Many products increase their functions and improve performance on the one hand, and reduce price positioning on the one hand. For example, the DS -330 digital camera launched by Fuji Film in June 1998 Compared with the DS -300 camera launched in April 1997 5,000 yen (the product catalog price is 190,000 yen); Nikon Company's 3x zoom camera launched in October 1998 was reduced by about 10,000 yen with a basically similar camera price launched in April of the same year. The CF card is also changed from 4MB to 8MB.

It, flash storage cards --- CF card and SM card, the capacity is increasing, the price has also dropped a lot. The year has fallen by about half. (Attachment: CF card: US SANDISK company provides a maximum capacity of 48MB; the company's maximum is 64MB3 Japan Songxia Battery Industry Company can provide several CF cards for 4, 8, 12, 16, 24, 32 (MB); Casio can provide 4, 4. 8, 15, 30, 48 (MB) several CF cards. SM card: Japan's Toshiba company with major production companies can provide a variety with a maximum capacity of 16MB. The US market can provide 2, 4, 8, 16. (MB ) SM cards of four capacity).

(4) 1999 —— The year of 2 million pixels was the year of lightweight digital camera into 2 million pixels.世界各大照相机厂商、感光材料厂商、计算机外部设备厂商和影像设备厂商，如柯达、佳能、尼康、美能达、富士、奥林巴斯、理光、爱克发、卡西欧、索尼、爱普生、三洋、 Samsung and other companies have invested heavily on the development of digital camera to seize the commanding heights of digital camera technology development. It has a greater share in the gradual expanding digital camera market. In more than a year, the digital cameras in the market have far more than 100 kinds. Innovation and its own characteristics can continue to move forward.

. In 1999, there were more than 20 lightweight digital cameras with more than 2 million pixels. They each had its own characteristics and represent the progress of the times. 2700, MX -2900ZOOM, Nikon ,,, Olympus C21, C -2000ZOOM, C -2020Zoom, C -2500L, Ricoh RDC -5000, Casio QV -2000UX, Sony Cyber -SHOTDSC -F55e, Cyber -Shotdsc - F505, Epson, Cenica Q -M200, etc., are the best of 2MP (MP represents a million pixels) lightweight digital cameras.

. The developed digital camera developed by the popular digital camera in 2000 has been born to the present. Strangely, the popular new product development hotspots in 1998 were 1 million pixels. In 1999, the hotspots climbed to 2 million pixels (2MP). 3MP), in October 2000, Olympus launched a Camediae -10 optical zoom popular digital camera with a total pixel number of 4 million pixels, setting a new record in 2000.

(1) The hotspot of the total pixel development of hotspots in 2000 is the 3 -megapixel (3MP) product. The first was the QV -3000EX digital camera launched by Casio in February 2002. 334 million). By the end of November 2000, a total of 12 companies launched more than 20 3MP digital cameras.

The hotspots for lens development are zoom lens. 80 % of the new models use the zoom lens. Even with a single -focal camera, most products also have digital zoom (also known as electronic zoom) function. The maximum magnification of optical zoom is 10 times.

The hotspots for digital interface development are the camera using USB interface (general serial bus), or both USB and RS232C interfaces.

(2) New design ideas 1. The appearance and external component configuration design moves closer to the 35mm camera: the image quality of the popular digital camera and the A6 size photo printed In the case of 35mm camera, the popular digital camera must naturally move closer to the traditional 35mm camera in the long -term practical test, and the habits of use are roughly the same. Therefore, almost all well -known digital camera companies have successively designed models similar to the traditional 35mm camera "horizontal torque body". Such as Pentaxei -2000 integrated SLR digital camera, Kodak DC -4800 digital camera.

2. The design of new models of miniaturization and lightweight: The size of the image sensor used in the popular digital camera is small (1 / 1.8 inches, 1 / 2.7 inches, etc.), and there is no traditional camera Essentially indispensable section mechanisms, plus multi -layer board and surface installation technology, as well as the advancement of micro -electronic components, create superior conditions for the small lightweights of digital cameras. Develop in the direction of Pozhen. Such as: Fuji machine, volume 85.5mm × 71mm × 28.5mm, weighs 155G; Kodak DC3800 machine, with a volume of 95mm × 61mm × 31mm, weighing 165G; Canon machine (2 times optical zoom), 87mm × 57mmx26.9mm, weighing 190g; weighing 190g; High porcelain (2x optical zoom), volume of 93.5mm × 66mm × 37.5mm, weighing 200g.

3. Design and development of waterproof and dustproof digital camera: In the past, Fuji and Konica both launched waterproof and dust -proof digital cameras. In 2000, Fuji designed 1.5 million pixels. Machine; Ri Guang designed a total pixel RDC -200G waterproof dustproof special machine with a total pixel. The waterproof performance complies with the Japanese standard (JIS) C0920 level 7 -level protection grade specified in Huai Huai; in addition, Kodak also developed a waterproof dust -proof camera.

4. Use the same body to design different models of digital cameras:

In the same body to design different grades, different models of digital camera products, It has become an important way to reduce the cost of production of cameras. It not only speeds up the design speed, but also saves production costs such as work and molds. For example, Kodak DC260, DC265 and DC290 cameras are used in the same body; Canon S10 and S20 also use the same body, only technical indicators and performance are different.

["First" of the digital camera]
[Mabika) -The world's first electronic camera without light film]

1973年11月，索尼公司正式开始了“电子眼”CCD的研究工作，在不断技术积累的基础上它于1981年推出了全球第一台不用感光胶片的电子相机——静态视频“马维卡（ "Mabika)". The camera uses a CCD thin piece of 10 mm × 12 mm with a resolution of only 570 × 490 (279,000) pixels. For the first time, the light signal is changed to electronic signal transmission.

followed closely, and Company Panasonic, Copal, Fuji, Canon, Nikon, and other companies also started the development of electronic cameras, and from 1984-1986, their own prototype electronic cameras were launched.

[Sony MYC-A7AF-the first time the digital camera has a pure physical operation method]

Out of Sony's hand, it can be seen that the company's market position today is by no means a "virtual name". In 1986, Sony released MyC-A7AF. For the first time, the digital camera had a pure physical operation method. It could record static images on 2-inch plates. Pixel resolution has also expanded to 38 million pixels. Casio VS-101 —— The first CMOS photosensitive device electronic camera.

In 1987, Casio first released the VS-101 electronic camera using CMOS photosensitive devices in the market. Although the resolution can only reach 28 million pixels, this is of great significance to the DC industry.

Today, CMOS and CCD's orthodox strives for digital camera sensor have been settled. In addition to being widely used in the Canon high -end camera today, CMOS has taken CCD as CCD as Make the dominant direction of your own products. It is not necessary to deny that the advantages of CMOS have the advantages of full -scale, low energy consumption, etc., but the disadvantages of low dynamic scope cannot not help people "stay away".

[Canon RC-760-the first 600,000 pixel model]

wants to obtain the shooting effect close to traditional cameras, improve the CCD pixel resolution, the most best Fundamental solutions, but in the early days when digital cameras were born, it was easy to talk about it on the pixel. For a few years, manufacturers have been hovering at a level of 300,000 pixels. It was not until 1988 that Canon launched a 600,000-pixel model RC-760.

The electronic camera uses a 2/3 inch 600 million pixel CCD. The appearance is slightly rigid today, but this is the highest pixel machine at that time. The price is higher than today. It's expensive.

[Kodak DCS 100 -established the general mode of digital camera]

Kodak DCS 100 — the general mode of digital camera in the world

In 1990, Kodak launched the DCS100 electronic camera, which first established a general mode of digital camera in the world. Since then, this model has become the industry standard.

For professional photographers, if a new machine has their familiar body and control mode, it will undoubtedly become simpler. In order to cater to this consumer psychology, Kodak Company applied to the DCS100 in the well -known Nikon F3 fuselage at the time. Internal functions have made great changes except for focusing screens and roll motors. Nikon lens is really detailed.

The digital SLR uses a 20.5 x 16.4mm CCD with 1.4 million pixels, and the light change multiple is 1.8X. The external storage unit (DSU) is used. DSU is similar to today's camera base. Battery uses battery as a driver energy. The built -in 200MB memory can store 150 unprepared RAW photos.

The view mode is also very primitive compared to today's machine. The photographer can use the optical viewfinder on the camera or the 4 -inch LCD LCD screen on the DSU. But very high -end. The price of this machine at that time was equivalent to 225,000 yuan today, which is really expensive.

In DCS100 was successful, Kodak launched the DCS100 subsequent model DCS200 in 1992. It finally got rid of DSU's burden, and the memory was placed inside the fuselage. The shooting becomes very comfortable.

Neon/Fuji E2/E2S —— The digital SLR

does not matter whether Kodak or Canon, the original tradition was used in the early product design Although the camera's film fuselage, although this can make professional photographers feel the affinity of the product, the product is inevitable to make people feel boring. In 1995, the two giants of Nikon and Fuji joined forces to launch a newly designed E2/E2S. It no longer copied the traditional fuselage of old teeth and adopted an integrated design style, which can easily make people feel refreshing.

The resolution of this digital SLR is only 1.3 million pixels. Compared with the 6 million pixels of the Kodak DCS460 of the same age, it is very different. The most special feature of E2/E2S is that Nikon's newly developed ROS optical system is adopted. Through a set of optical components, the light is projected to the CCD with an area of less than 35mm. The aperture has been severely shrinking, and the quality of imaging has been greatly affected.

[Nikon D1-Nikon's first self-developed digital SLR]

In June 1999, Nikon finally launched the company's first digital SLR -D 1, With the price far below the Kodak DCS series camera, the price of digital SLR people has created a new era of digital SLR people.

The body used in this digital SLR is completed by the traditional camera F5, which still maintains a very attractive professional temperament. It has a built-in 2.74 million pixel CCD and ISO's sensitivity is 200-1600. It uses CF card/IBM micro-hard disk as a storage medium. The supported file formats include three types: JPEG, TIFF, and RAW. Essence

[Canon EOS 1D -Digital Single Myth of Canon]

For a long time, while the pixel resolution is competing, the competition of manufacturers in shooting speed is also in full swing. Essence In order to completely surpass the myth created by Nikon D1, Canon launched the EOS 1D dedicated to fast shooting in September 2001, thus overwhelming the Nikon D1 in speed and technical indicators, and achieved a new generation of legends in the DC industry.

The digital SLR has a 4-megapixel resolution, ISO sensitivity is 100-1600, and CF card/IBM microcracks are also used as a storage medium, which is priced at about $ 7,000.

[Olympus E-1-4/3 system masterpieces]

In December 2003, Olympus released the two companies, Kodak and Fuji The joint research and development of E-1 adopts the "4/3 system".

4/3 The system specifies the area of the CCD photosensitive device, the distance between the CCD and the lens, and the diameter of the lens. Compatible, this is definitely unimaginable in previous products.

E-1 uses a 5-megapixel CCD, and the ISO sensitivity range is 100-800. The CF card is used as a storage medium to support JPEG, RAW, and TIFF file format. At the beginning of the release, the price was as high as 16,000 yuan.

[Canon EOS 300D -a generation of civilian Digital SLR King]

The digital SLR function is powerful, and the picture quality is beautiful, but the high price is that it cannot go The biggest obstacle of the people nearly. In order to successfully complete the popularity of digital SLR, a group of reasonable civilian digital SLR finally surfaced, and the Canon E0S 300D undoubtedly considered the pioneer of this process.

In August 2003, Canon launched an EOS 300D with a plastic body, which integrates the predecessor EOS-10D's customary CMOS photosensitive device. The original competitive pattern of the camera market.

This camera uses 6.3 million pixels CCD, ISO sensitivity is 100-1600, and CF cards are used as a storage medium. The design applies the three colors of silver, gray, and black, and the overall feeling is pretty good.

[Digital camera data storage format]

With the development of digital technology, digital cameras have more and more functions. Function, this makes the digital camera change into a small and exquisite portable digital camera as soon as it is necessary, which has indeed brought unexpected convenience to many users. Because the animation is the storage of continuous audiovisual screen files, the storage space is too large, so in order to facilitate the storage, the digital cameras of each brand have different support formats on animation photography, and they also derive different animation file support formats, such as everyone's storage format, such as everyone's storage. Familiar AVI, MONTION JPEG, MOV, etc. are all applied to a variety of different digital cameras. At present, the video storage format of digital cameras is roughly the following.

1, AVI file format

The audio and video format of extension. AVI, which can be said to be one of the earliest popularization specifications. Because the AVI format is not compressed, the AVI video file in just a few tens of seconds often requires 5 to 8MB of storage space. In addition, because there is no complete specification for manufacturers who use AVI formats for reference, there are at least more than 100 specifications performed by each of them. Despite the popular video playback software, such as: Windvd, PowerDVD, and even ACDSee 3R-1, etc., it is known as AVI files that can be played as many as 60 % to 70 %. However, from the current situation, Microsoft Mediea Player 8.0 is the best compatibility AVI audio and video playback software. It is currently the most common dynamic image format.

2, MOV file format

MOV is one of the most commonly used animation formats for most code camera manufacturers. The main reason is that its streamlined compression technology provides users with a good audio and video choice at low resolution. In addition, the playback software Quicktime obtains free authorization of Apple Computers, and naturally adds its popularity. At present, the version of Quicktime 4.12 or above can not only handle video, animation, graphics, text, sound, and even 360 -degree virtual reality (VR).

[Common brands of digital cameras]

sony |-{zh-cn: Sony; zh-tw: new force}-(sony) n Canon n Canon n R n Nikon
Olympus
Konica Minolta
Pentax
R N Patriot (AIGO)
Lenovo
Benq

[Maintenance of digital cameras]

keeps clean n n R n
Professional photographers suggest: Take a plastic zipper lock bag with you. In a very humid or dusty climate, you can dig a small hole on the side to put the camera lens and put the camera in the bag to prevent the fog, moisture, and dust enter the camera, which can extend its service life.

Finally, do not put the camera in a car with high humidity. The inside of the car is like a stove, which will deform plastic and damage the wires.

1 thought on “Comparison of digital cameras ~~~~”

Jeanette
November 30, 2022 at 11:46 pm

Digital camera (also known as: Digital camera English Full name: Digital Camera abbreviated)

digital camera. It is a camera that uses electronic sensors to convert optical images into electronic data. Different from the chemical changes of cash bromide on the film on the film on the film, the principle of the image is recorded. The sensor of the digital camera is a light-sensitive charged coupling- {zh-cn: device; zh-tw: component}-(CCD ) Or a complementary metal oxide semiconductor (CMOS). Before the image transmission is transmitted to the computer, it is usually stored in digital storage devices (usually flash memory; soft disk and repeated rubbers (CD-RW) are rarely used for digital camera equipment).

D digital camera is a product that integrates optical, mechanical, and electronic integration. It integrates the conversion, storage and transmission of image information, has the characteristics of digital access mode, interacting with computer and real -time shooting. Digital cameras first appeared in the United States. More than 20 years ago, the United States used it to send photos to the ground through satellites. Later, digital photography turned into civilian use and continued to expand its application scope.

[Advantages of digital camera]
1. You can see the picture immediately after taking pictures, so as to provide the possibility of re -shooting the dissatisfaction work immediately and reduce the occurrence of regret.
2. Just pay for those photos that you want to rinse, and other unwanted photos can be deleted.
3. Color reduction and color range no longer rely on the quality of the film.
4. The sensitivity is no longer fixed due to film. Optical conversion chips can provide a variety of sensitivity choices.

[Birth of a digital camera]

The history of digital cameras can be traced back to the 1940s of the last century. With the promotion of TV, people need a kind of being able to be able to be in the same way. The device recorded by the broadcast TV show. In 1951, Bin Crosby laboratory invented the video recorder (VTR). This new machine can record the current pulse of the TV broadcast to the tape. By 1956, video recorders began to produce a large amount. At the same time, it is regarded as electronic imaging technology.

5. Waterproof and dust -proof "Million Pixels" machine appeared on the Bigjobds -25OHD digital camera, which is based on Fuji CCD total pixels of 1.5 million cameras. Power -dedicated jacket, plus a "million pixel" waterproof and dustproof special digital camera composed of a large flash of HD and GN24.

Cneca DG -1 digital camera was launched in September 1998. It also has a digital camera with a 7 -level waterproof and dustproof design with a total pixel of 1.08 million pixels. The fuselage and important parts are protected by hard rubber materials. Suitable for surveillance on the site of civil engineering, the image can be transmitted immediately and printed to the engineering records and work report documents.

It, some companies have developed a special waterproof dust jacket. For example, Kodak launched a waterproof dustproof jacket for DC200, DC210zoom, and three models. The company also launched a special waterproof jacket for the two models of A5zoom.

6. "Personalized" development is a new highlight of the development of digital cameras. With the fierce competition, the characteristics of the product are becoming more and more obvious. The characteristics of the manufacturer are as follows:

Sony: The equipment is 10 times -14 times the zoom lens. It uses soft disk to record static and dynamic images, which can be replicated in the machine.

Inonalian: miniaturization, taking APS small camera shape, SLR high -resolution image, large storage space.

Cascio: Low -grade, multifunctional, large LCD display, lens can rotate.

Fuji film: take traditional film small cameras, high -resolution portraits, low -priced; ultra -small, metal cases, multi -functional, multi -characteristics, fashion.

Kodak: High -solution, high -tech content; lower price, larger storage capacity, and providing more software.

Ding porcelain: Take the unique vertical shape of the traditional camera, highly solve the portrait.

HP: High -solution, extensive adaptability, low -cost.

Konica: High -decomposition portrait, operation method is close to traditional film small cameras.

Meineda: High -solving image, lens -CCD unit can rotate and separate.

Nikon: ultra -light small, higher resolution, complete function, simple operation.

Olympica: high -resolution portrait, zoom, lens non -replaceable SLR camera; economy, portable.

The Panasonic Electronics: Small, higher resolution, mid -range price.

This: Low -priced, lens rotation, special effects software.

Toshiba: Economy, high -resolution, use SM card.

Akfa: economic practical, high -resolution, and lens can be rotated; Seiko Eponia: High -solving image, panoramic photo function, both memory and mobile memory cards.

7. The new storage media "Memory Baseball" came out to launch a new type of storage media to the market in September 1998- "Memory Baseball". And 8MB of MSA -8A. The volume is long, that is, small and thin, it is very convenient to pull out or insert. Technical characteristics: 10 -needle connecting, serial interface, maximum writing speed of 1.5MB / s, maximum reading speed 2.45MB / s, power supply voltage 2.7-3.6V, the average consumption current at the time Size: 21.5 × 50 × 2.8mm; about 4 grams.

The MSAC -PCI PC card adapter also launched.

The new SLR digital camera for "Memory Stick" -D700, 5 times zoom lens (equivalent to 35mm camera focal length 28-140mm / F2-24) 1.5 million pixel CCD, 2.5 -inch display, 2.5 -inch display,, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, 2.5 -inch display, and 2.5 inch display, Rich function, suitable for professional use and other professional use.

8. Price positioning generally decreases the price positioning of popular digital cameras at the beginning, about 1,000 US dollars in the US market, and positioning in the Japanese market is about 200,000 yen. The total pixels of the CCD image sensor of the product at that time were generally 30-35 million pixels. By the end of 1998, the price dropped significantly. For example, the ray -ray RDC -4200 digital camera of the "million pixels", the minimum price of 499 US dollars, and the market price of the same type of camera in 1997 was about $ 1,300. The decline is large. Many products increase their functions and improve performance on the one hand, and reduce price positioning on the one hand. For example, the DS -330 digital camera launched by Fuji Film in June 1998 Compared with the DS -300 camera launched in April 1997 5,000 yen (the product catalog price is 190,000 yen); Nikon Company's 3x zoom camera launched in October 1998 was reduced by about 10,000 yen with a basically similar camera price launched in April of the same year. The CF card is also changed from 4MB to 8MB.

It, flash storage cards --- CF card and SM card, the capacity is increasing, the price has also dropped a lot. The year has fallen by about half. (Attachment: CF card: US SANDISK company provides a maximum capacity of 48MB; the company's maximum is 64MB3 Japan Songxia Battery Industry Company can provide several CF cards for 4, 8, 12, 16, 24, 32 (MB); Casio can provide 4, 4. 8, 15, 30, 48 (MB) several CF cards. SM card: Japan's Toshiba company with major production companies can provide a variety with a maximum capacity of 16MB. The US market can provide 2, 4, 8, 16. (MB ) SM cards of four capacity).

(4) 1999 —— The year of 2 million pixels was the year of lightweight digital camera into 2 million pixels.世界各大照相机厂商、感光材料厂商、计算机外部设备厂商和影像设备厂商，如柯达、佳能、尼康、美能达、富士、奥林巴斯、理光、爱克发、卡西欧、索尼、爱普生、三洋、 Samsung and other companies have invested heavily on the development of digital camera to seize the commanding heights of digital camera technology development. It has a greater share in the gradual expanding digital camera market. In more than a year, the digital cameras in the market have far more than 100 kinds. Innovation and its own characteristics can continue to move forward.

. In 1999, there were more than 20 lightweight digital cameras with more than 2 million pixels. They each had its own characteristics and represent the progress of the times. 2700, MX -2900ZOOM, Nikon ,,, Olympus C21, C -2000ZOOM, C -2020Zoom, C -2500L, Ricoh RDC -5000, Casio QV -2000UX, Sony Cyber -SHOTDSC -F55e, Cyber -Shotdsc - F505, Epson, Cenica Q -M200, etc., are the best of 2MP (MP represents a million pixels) lightweight digital cameras.

. The developed digital camera developed by the popular digital camera in 2000 has been born to the present. Strangely, the popular new product development hotspots in 1998 were 1 million pixels. In 1999, the hotspots climbed to 2 million pixels (2MP). 3MP), in October 2000, Olympus launched a Camediae -10 optical zoom popular digital camera with a total pixel number of 4 million pixels, setting a new record in 2000.

(1) The hotspot of the total pixel development of hotspots in 2000 is the 3 -megapixel (3MP) product. The first was the QV -3000EX digital camera launched by Casio in February 2002. 334 million). By the end of November 2000, a total of 12 companies launched more than 20 3MP digital cameras.

The hotspots for lens development are zoom lens. 80 % of the new models use the zoom lens. Even with a single -focal camera, most products also have digital zoom (also known as electronic zoom) function. The maximum magnification of optical zoom is 10 times.

The hotspots for digital interface development are the camera using USB interface (general serial bus), or both USB and RS232C interfaces.

(2) New design ideas 1. The appearance and external component configuration design moves closer to the 35mm camera: the image quality of the popular digital camera and the A6 size photo printed In the case of 35mm camera, the popular digital camera must naturally move closer to the traditional 35mm camera in the long -term practical test, and the habits of use are roughly the same. Therefore, almost all well -known digital camera companies have successively designed models similar to the traditional 35mm camera "horizontal torque body". Such as Pentaxei -2000 integrated SLR digital camera, Kodak DC -4800 digital camera.

2. The design of new models of miniaturization and lightweight: The size of the image sensor used in the popular digital camera is small (1 / 1.8 inches, 1 / 2.7 inches, etc.), and there is no traditional camera Essentially indispensable section mechanisms, plus multi -layer board and surface installation technology, as well as the advancement of micro -electronic components, create superior conditions for the small lightweights of digital cameras. Develop in the direction of Pozhen. Such as: Fuji machine, volume 85.5mm × 71mm × 28.5mm, weighs 155G; Kodak DC3800 machine, with a volume of 95mm × 61mm × 31mm, weighing 165G; Canon machine (2 times optical zoom), 87mm × 57mmx26.9mm, weighing 190g; weighing 190g; High porcelain (2x optical zoom), volume of 93.5mm × 66mm × 37.5mm, weighing 200g.

3. Design and development of waterproof and dustproof digital camera: In the past, Fuji and Konica both launched waterproof and dust -proof digital cameras. In 2000, Fuji designed 1.5 million pixels. Machine; Ri Guang designed a total pixel RDC -200G waterproof dustproof special machine with a total pixel. The waterproof performance complies with the Japanese standard (JIS) C0920 level 7 -level protection grade specified in Huai Huai; in addition, Kodak also developed a waterproof dust -proof camera.

4. Use the same body to design different models of digital cameras:

In the same body to design different grades, different models of digital camera products, It has become an important way to reduce the cost of production of cameras. It not only speeds up the design speed, but also saves production costs such as work and molds. For example, Kodak DC260, DC265 and DC290 cameras are used in the same body; Canon S10 and S20 also use the same body, only technical indicators and performance are different.

["First" of the digital camera]
[Mabika) -The world's first electronic camera without light film]

1973年11月，索尼公司正式开始了“电子眼”CCD的研究工作，在不断技术积累的基础上它于1981年推出了全球第一台不用感光胶片的电子相机——静态视频“马维卡（ "Mabika)". The camera uses a CCD thin piece of 10 mm × 12 mm with a resolution of only 570 × 490 (279,000) pixels. For the first time, the light signal is changed to electronic signal transmission.

followed closely, and Company Panasonic, Copal, Fuji, Canon, Nikon, and other companies also started the development of electronic cameras, and from 1984-1986, their own prototype electronic cameras were launched.

[Sony MYC-A7AF-the first time the digital camera has a pure physical operation method]

Out of Sony's hand, it can be seen that the company's market position today is by no means a "virtual name". In 1986, Sony released MyC-A7AF. For the first time, the digital camera had a pure physical operation method. It could record static images on 2-inch plates. Pixel resolution has also expanded to 38 million pixels. Casio VS-101 —— The first CMOS photosensitive device electronic camera.

In 1987, Casio first released the VS-101 electronic camera using CMOS photosensitive devices in the market. Although the resolution can only reach 28 million pixels, this is of great significance to the DC industry.

Today, CMOS and CCD's orthodox strives for digital camera sensor have been settled. In addition to being widely used in the Canon high -end camera today, CMOS has taken CCD as CCD as Make the dominant direction of your own products. It is not necessary to deny that the advantages of CMOS have the advantages of full -scale, low energy consumption, etc., but the disadvantages of low dynamic scope cannot not help people "stay away".

[Canon RC-760-the first 600,000 pixel model]

wants to obtain the shooting effect close to traditional cameras, improve the CCD pixel resolution, the most best Fundamental solutions, but in the early days when digital cameras were born, it was easy to talk about it on the pixel. For a few years, manufacturers have been hovering at a level of 300,000 pixels. It was not until 1988 that Canon launched a 600,000-pixel model RC-760.

The electronic camera uses a 2/3 inch 600 million pixel CCD. The appearance is slightly rigid today, but this is the highest pixel machine at that time. The price is higher than today. It's expensive.

[Kodak DCS 100 -established the general mode of digital camera]

Kodak DCS 100 — the general mode of digital camera in the world

In 1990, Kodak launched the DCS100 electronic camera, which first established a general mode of digital camera in the world. Since then, this model has become the industry standard.

For professional photographers, if a new machine has their familiar body and control mode, it will undoubtedly become simpler. In order to cater to this consumer psychology, Kodak Company applied to the DCS100 in the well -known Nikon F3 fuselage at the time. Internal functions have made great changes except for focusing screens and roll motors. Nikon lens is really detailed.

The digital SLR uses a 20.5 x 16.4mm CCD with 1.4 million pixels, and the light change multiple is 1.8X. The external storage unit (DSU) is used. DSU is similar to today's camera base. Battery uses battery as a driver energy. The built -in 200MB memory can store 150 unprepared RAW photos.

The view mode is also very primitive compared to today's machine. The photographer can use the optical viewfinder on the camera or the 4 -inch LCD LCD screen on the DSU. But very high -end. The price of this machine at that time was equivalent to 225,000 yuan today, which is really expensive.

In DCS100 was successful, Kodak launched the DCS100 subsequent model DCS200 in 1992. It finally got rid of DSU's burden, and the memory was placed inside the fuselage. The shooting becomes very comfortable.

Neon/Fuji E2/E2S —— The digital SLR

does not matter whether Kodak or Canon, the original tradition was used in the early product design Although the camera's film fuselage, although this can make professional photographers feel the affinity of the product, the product is inevitable to make people feel boring. In 1995, the two giants of Nikon and Fuji joined forces to launch a newly designed E2/E2S. It no longer copied the traditional fuselage of old teeth and adopted an integrated design style, which can easily make people feel refreshing.

The resolution of this digital SLR is only 1.3 million pixels. Compared with the 6 million pixels of the Kodak DCS460 of the same age, it is very different. The most special feature of E2/E2S is that Nikon's newly developed ROS optical system is adopted. Through a set of optical components, the light is projected to the CCD with an area of less than 35mm. The aperture has been severely shrinking, and the quality of imaging has been greatly affected.

[Nikon D1-Nikon's first self-developed digital SLR]

In June 1999, Nikon finally launched the company's first digital SLR -D 1, With the price far below the Kodak DCS series camera, the price of digital SLR people has created a new era of digital SLR people.

The body used in this digital SLR is completed by the traditional camera F5, which still maintains a very attractive professional temperament. It has a built-in 2.74 million pixel CCD and ISO's sensitivity is 200-1600. It uses CF card/IBM micro-hard disk as a storage medium. The supported file formats include three types: JPEG, TIFF, and RAW. Essence

[Canon EOS 1D -Digital Single Myth of Canon]

For a long time, while the pixel resolution is competing, the competition of manufacturers in shooting speed is also in full swing. Essence In order to completely surpass the myth created by Nikon D1, Canon launched the EOS 1D dedicated to fast shooting in September 2001, thus overwhelming the Nikon D1 in speed and technical indicators, and achieved a new generation of legends in the DC industry.

The digital SLR has a 4-megapixel resolution, ISO sensitivity is 100-1600, and CF card/IBM microcracks are also used as a storage medium, which is priced at about $ 7,000.

[Olympus E-1-4/3 system masterpieces]

In December 2003, Olympus released the two companies, Kodak and Fuji The joint research and development of E-1 adopts the "4/3 system".

4/3 The system specifies the area of the CCD photosensitive device, the distance between the CCD and the lens, and the diameter of the lens. Compatible, this is definitely unimaginable in previous products.

E-1 uses a 5-megapixel CCD, and the ISO sensitivity range is 100-800. The CF card is used as a storage medium to support JPEG, RAW, and TIFF file format. At the beginning of the release, the price was as high as 16,000 yuan.

[Canon EOS 300D -a generation of civilian Digital SLR King]

The digital SLR function is powerful, and the picture quality is beautiful, but the high price is that it cannot go The biggest obstacle of the people nearly. In order to successfully complete the popularity of digital SLR, a group of reasonable civilian digital SLR finally surfaced, and the Canon E0S 300D undoubtedly considered the pioneer of this process.

In August 2003, Canon launched an EOS 300D with a plastic body, which integrates the predecessor EOS-10D's customary CMOS photosensitive device. The original competitive pattern of the camera market.

This camera uses 6.3 million pixels CCD, ISO sensitivity is 100-1600, and CF cards are used as a storage medium. The design applies the three colors of silver, gray, and black, and the overall feeling is pretty good.

[Digital camera data storage format]

With the development of digital technology, digital cameras have more and more functions. Function, this makes the digital camera change into a small and exquisite portable digital camera as soon as it is necessary, which has indeed brought unexpected convenience to many users. Because the animation is the storage of continuous audiovisual screen files, the storage space is too large, so in order to facilitate the storage, the digital cameras of each brand have different support formats on animation photography, and they also derive different animation file support formats, such as everyone's storage format, such as everyone's storage. Familiar AVI, MONTION JPEG, MOV, etc. are all applied to a variety of different digital cameras. At present, the video storage format of digital cameras is roughly the following.

1, AVI file format

The audio and video format of extension. AVI, which can be said to be one of the earliest popularization specifications. Because the AVI format is not compressed, the AVI video file in just a few tens of seconds often requires 5 to 8MB of storage space. In addition, because there is no complete specification for manufacturers who use AVI formats for reference, there are at least more than 100 specifications performed by each of them. Despite the popular video playback software, such as: Windvd, PowerDVD, and even ACDSee 3R-1, etc., it is known as AVI files that can be played as many as 60 % to 70 %. However, from the current situation, Microsoft Mediea Player 8.0 is the best compatibility AVI audio and video playback software. It is currently the most common dynamic image format.

2, MOV file format

MOV is one of the most commonly used animation formats for most code camera manufacturers. The main reason is that its streamlined compression technology provides users with a good audio and video choice at low resolution. In addition, the playback software Quicktime obtains free authorization of Apple Computers, and naturally adds its popularity. At present, the version of Quicktime 4.12 or above can not only handle video, animation, graphics, text, sound, and even 360 -degree virtual reality (VR).

[Common brands of digital cameras]

sony |-{zh-cn: Sony; zh-tw: new force}-(sony) n Canon n Canon n R n Nikon
Olympus
Konica Minolta
Pentax
R N Patriot (AIGO)
Lenovo
Benq

[Maintenance of digital cameras]

keeps clean n n R n
Professional photographers suggest: Take a plastic zipper lock bag with you. In a very humid or dusty climate, you can dig a small hole on the side to put the camera lens and put the camera in the bag to prevent the fog, moisture, and dust enter the camera, which can extend its service life.

Finally, do not put the camera in a car with high humidity. The inside of the car is like a stove, which will deform plastic and damage the wires.

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