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+--- Thread: next PZ Lens Test Report - Zeiss Planar T* ZA 85mm f/1.4 (/showthread.php?tid=3637)
next PZ Lens Test Report - Zeiss Planar T* ZA 85mm f/1.4 - Klaus - 09-29-2010
[quote name='Yakim' timestamp='1285788664' post='3372']
I vividly remember my experience with AFD lenses. 24/2.8 and 135/2.8 (IF design) were faster, sometimes noticeably so, than 35/2, 50/1.8 and 50/1.4 which extend during focusing. So I guess we'll have to agree that we disagree on that.
[/quote]
IF/RF designs are faster than extension systems unless somebody messed up the mechanism. I would agree here.
next PZ Lens Test Report - Zeiss Planar T* ZA 85mm f/1.4 - wim - 09-29-2010
[quote name='Yakim' timestamp='1285788664' post='3372']
I vividly remember my experience with AFD lenses. 24/2.8 and 135/2.8 (IF design) were faster, sometimes noticeably so, than 35/2, 50/1.8 and 50/1.4 which extend during focusing. So I guess we'll have to agree that we disagree on that.
[/quote]
[quote name='Klaus' timestamp='1285789038' post='3373']
IF/RF designs are faster than extension systems unless somebody messed up the mechanism. I would agree here.
[/quote]
As compared to non-IF USM lenses. Furthermore, I didn't say all.
Kind regards, Wim