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Forums > Back > Light loss: Why do similar lenses exhibit such a big difference?
Yakim
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#4
07-22-2010, 03:25 PM
[quote name='jkeijmel' date='22 July 2010 - 04:13 PM' timestamp='1279811629' post='1236']

Since the FL changes from 120 to 205[/quote]



1. These are physical lengths, not FL.

2. The link states that light loss should always be 2 stops. It mentions nothing about lens design (IF or non-IF) so I conclude it is not a factor.
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Light loss: Why do similar lenses exhibit such a big difference? - by Yakim - 07-22-2010, 03:25 PM

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