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Hardware Chapter Camera Node--Single Lens Reflex 2

 LOFT生活 2015-01-29
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【 term advantage 】
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1, [image sensor]

For digital camera, the sensor is one of the most important core component, the effect of it is directly related to the size of the photograph, to achieve good results, the most effective approach is not only improve the pixels, actually it is more important is to increase the size of the CCD or CMOS.
Using CCD or CMOS digital SLR camera sensor size are far more than the ordinary digital camera. Digital SLR sensor number, therefore, not only is higher (6 million) is the lowest, and is a single pixel area civil four or five times the size of a digital camera, therefore has very good SNR, can record the broad brightness range.
6 million pixels digital SLR camera image quality is absolutely more than using 2/3 inch 8 million pixels of a CCD digital camera's image quality.

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2, [lens selection]

A digital camera as a kind of optical, mechanical and electrical integration products, the performance of the optical imaging system for final imaging effect is also very important, has a good camera for imaging the choice of no less significance of image sensor.
At the same time, as image sensor, image engine and reduce costs, and storage devices, optical lens in the digital camera cost share is becoming more and more big.
Every brand has a huge af lens group, from ultra wide Angle to super telephoto, from macro to soft focus, the user can choose according to their own requirements form a complete set of the lens.
At the same time, due to the sensor area is larger, easy to get good imaging digital SLR camera.

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3, [response speed]

Digital SLR the start-up speed of only a few hundred milliseconds, shoot quickly.
And consumer camera is pure electronic shutter, there are serious shutter lag problem, this weakness is the soft rib of consumer digital camera, so it still life is fair, but is not suitable for capturing imaging, moving object - your income is not always the action when you press the shutter.
Response speed advantage of digital SLR, due to its focus system independent from the imaging device, they are basic can achieve the same response speed and traditional DSLR, let users feel in news, sports photography.

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4, [manual ability]

Although today's camera is the function of automatic shooting more and more strong, but because when shooting environment, the subject is protean, so a to photography has the certain requirement of users are not merely content with the use of automatic mode. Digital SLR can easily manually zoom, manually set the shooting parameters, etc., can also make some special film.
And many consumer cameras are automatically (especially the card machine), most cameras without manual zoom ring, want to rely on motor automatically zoom, because of the zoom and focus speed is slow, will lose a lot of shooting opportunities.
Many people think that automatically better than manually, it is a myth, only the functions of automatic without manual camera is often low end of the camera, because the precision and speed of the automatic, far less than the manual is so high.

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5, [attachment]

Digital SLR and ordinary digital camera is an important distinction is that it has a strong extensibility, in addition to being able to continue to use the polarizer additional lenses and you can exchange lenses, you can also use professional flash, and other auxiliary equipment, in order to enhance its ability to adapt to the environment.
Such as high-power flash, ring macro flash light, battery grip, timing, remote controls, these attachments let rich digital SLR can adapt to all kinds of special requirements, while ordinary digital camera is significantly less.

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【Digital SLR and traditional monocular term】

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1, [high-resolution CCD]

General SLR cameras have 8 million or more pixels of a CCD or CMOS
The digital SLR also has more than 8 million pixels CCD. The current professional full-frame digital SLR pixel is higher, more suitable for professional use.

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2, [has more excellent imaging quality, level of detail is more exquisite]

As SLR cameras because the sensor area is larger, easy to get good imaging digital SLR camera.
Are more abundant and relatively lens, lens group is abundance and the imaging quality of video friends choose the important factors.

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3, [manual ability]

Manual adjustment function also becomes the function of digital SLR must possess, as well as the representative of professionalism.
And in numerous manual function exposure and white balance are two important aspects. In some cases the photographer want to get the image or underexposure graphics, even in some cases based on the experience of the photographer, not according to the numerical normal exposure metering system, so you need to manually control exposure and color temperature, in order to obtain good results.
This is also a digital SLR professional.
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4, [response speed]

Due to its focus system independent from the imaging device, they can basic implementation and the response speed of the traditional models, in news, sports photography makes it handy for the user.

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5, [volume and price ]

For SLR cameras because internal integration of the large size of CCD or CMOS so look relatively large volume, the subsequent cost will increase, prices and more expensive.

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【 monocular camera and ordinary camera term 】

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1,  [the structure of the]

And traditional SLR cameras have adopted special structure, digital SLR camera more this solved the problem of the aberration, is seen from inside the viewfinder is going to the exposure of the images in the film, ordinary digital camera does not filmed a optical viewfinder or EVF electronic viewfinder or LCD screen, relatively simpler, this way of framing in the manufacturing cost is low.
But cause we see in the viewfinder image and camera images taken actual deviation is very large.

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2, [light-sensitive materials]

Digital SLR camera, two-thirds of the overall picture of most used for the sensitive material, a small number of high-end products to do the film picture (and it is as same as the size of the 35 mm film), often than ordinary digital camera CCD area several times, so the digital SLR generally manic point is very small, the ordinary digital camera is a point of control will send a lot, but because of the number of the CCD using small area so often can make a great light, each have their own advantages on this!

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3, [camera]

SLR cameras, this is a natural advantages, is common digital camera can't match.
Digital SLR camera can be configured to better and different USES of the lens (wide Angle, fish eye, like coke, macro), can give full play to the power of digital SLR.
A digital camera as a kind of optical, mechanical and electrical integration products, the performance of the optical imaging system for final imaging effect is also very important, has a good camera for imaging the choice of no less significance of image sensor.
At the same time, as image sensor, image engine and reduce costs, and storage devices, optical lens in the digital camera cost share is becoming more and more big. This is especially true for digital SLR, in traditional the choice of the SLR cameras, lens group is abundance and the imaging quality of video friends choose the important factors.
At the same time, due to the sensor area is larger, easy to get good imaging digital SLR camera. More important is that many photography enthusiasts, generally have one or two, even as many as a dozen professional camera, digital SLR body, activate the camera immediately, and the original traditional film cameras constitute the two systems complement film and digital.
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4, [shutter]

Now the shutter design also improves the technology and process, the ordinary shutter can do it more than 1/1000 of a second, but the application of digital SLR curtain shutter tends to do speed faster, can be as high as 1/2000-4000 seconds, faster response speed.
Compared with the ordinary digital camera shutter is delay longer, in capturing bad master often miss the most wonderful moment.
Response speed advantage of digital SLR, due to its focus system independent from the imaging device, they are of the same basic can achieve and traditional monocular camera response speed, let users feel in news, sports photography.
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【Article is excerpted from: Web Search】
【Reserved Integrate / Just Reference】
【Translation is by The Network】

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