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Old 30-10-2011, 02:18 PM
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RickS (Rick)
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Join Date: Apr 2010
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Quote:
Originally Posted by rcheshire View Post
Relative QE 4050 BGR ~ 31, 42, 43 - 4022 BGR - 45, 42, 35. In real terms is this significant?
Looking at the QE for Blue, the 4050 is (approximately) only two thirds as sensitive as the 4022 so, for example, you'd need a 9 minute exposure with the 4050 to capture the same amount of data as a 6 minute exposure with the 4022. That's the worst case. Green sensitivity is the same. Red is lower, but not by as much as Blue.

Only you can decide how significant this is relative to all the other pros and cons.

Cheers,
Rick.
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