Canon 5D Mark III Review

02.03.12 14:47 | Goblin | 92 комментария »

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Full-frame 22-megapixel sensor: the new generation Between the 21Mpix of the Mark II and the 22.3Mpix of the Mark III, there has been a lot more progress than meets the eye (given how nearly identical the two iterations seem to be on the surface).

But as a matter of fact, nearly 4 years have gone by since the release of the Canon EOS 5D Mark II, and for the Canon EOS 5D Mark III, Canon has integrated a new-generation CMOS full-frame sensor which is characterized by two important developments:

• The mesh network is different, thanks to borrowing the EOS-1D X’s gapless microlens sensor technology that uses bigger photosites than those of the older generation. As the 5D MKIII’s photosites will potentially receive more light than those of its predecessor, it will be very interesting to see if its low-light performance will be better than that of other full-frame cameras of the same generation, such as the Nikon D800.
  
  
• Each photodiode is equipped with an underlying transistor that provides initial noise processing at the instant of signal transmission. This means that the EOS 5D MK III can achieve a nominal sensitivity of 25,600 ISO, extendable up to 102,400 ISO in H2 mode. According to Canon, an image shot at 25,600 ISO should be completely usable. (We will certainly not fail to verify this in our tests for noise!)

To avoid overheating while shooting in Live View and video modes, Canon has exploited the potential of heat dissipation via an exothermic body.

Canon 5D Mark III Review

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