Canon sensor technology

Started Apr 21, 2012 | Discussions thread
Contributing MemberPosts: 688
Re: Canon DR is limited by read noise
In reply to Mike Ca, Apr 24, 2012

Mike Ca wrote:

The QE improvement for the 5D III is probably mostly due to use of gapless micro lenses on the sensor. The 5D II did not use gapless micro lenses. Gapless micro lenses allow the sensor pixels to collect photons from the entire surface of the sensor. The 5D II sensor had dead areas between pixels where no photons were detected.

If DxO did not materially change the test procedure since the 5D2, it's evident that the 5D3 CFA lets more light through relative to its predecessor, at the cost of color resolution. That plus the gapless microlens array should cover the increase in "QE".

My understanding was the Bill Claff FFT data was based on still frames. I don't think he measured the video.

Hmm, think you're right. Good point, that.

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