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Old 29-01-2009, 09:42 PM
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CometGuy is offline
Join Date: Feb 2005
Location: Brisbane
Posts: 942
Canon Sensors - Quantum Efficiency

These are the first reasonably precise measurements done of Canon CMOS Quantum Efficiency that I've seen:

Whats it all mean? In a nutshell, the Canon CMOS sensors are 1/5 as sensitive as the best monochrome sensors. This difference is mostly due to the bayer colour filters which cover the pixels. I guess we all knew that but its interesting to see the hard data for once!

Interestingly the new 5D is quite a big improvement over the old 5D.

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