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Forums > Back > Next PZ lens test report: Zeiss ZF Distagon T* 21mm f/2.8 (FX)
mst
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#1
02-10-2011, 12:22 PM
http://www.opticallimits.com/nikon_ff/446-zeisszf2128ff



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Brightcolours
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#2
02-10-2011, 03:40 PM
In an earlier post you said that the Nikon results were in one area different from the Canon results, when a member was pointed to the Canon FF test to know how well the lens would do on FF.



I have studied them for about 5 minutes, but can not find that area! <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='Tongue' />
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mst
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#3
02-10-2011, 03:48 PM
[quote name='Brightcolours' timestamp='1297352444' post='6035']

In an earlier post you said that the Nikon results were in one area different from the Canon results, when a member was pointed to the Canon FF test to know how well the lens would do on FF.



I have studied them for about 5 minutes, but can not find that area! <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='Tongue' />

[/quote]



Well, yes <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='Smile' /> The area is MTF, but a careful retest on the D3x closed the gap a little.



You can still spot that the borders and corners reach their peak values on the D3x at f/8, while on the 5D II the peaks are at f/5.6. In addition, the MTF "curve" for borders and corners is rather flat compared to the values in the Canon test.



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Brightcolours
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#4
02-10-2011, 04:18 PM
[quote name='mst' timestamp='1297352921' post='6036']

Well, yes <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='Smile' /> The area is MTF, but a careful retest on the D3x closed the gap a little.



You can still spot that the borders and corners reach their peak values on the D3x at f/8, while on the 5D II the peaks are at f/5.6. In addition, the MTF "curve" for borders and corners is rather flat compared to the values in the Canon test.



-- Markus

[/quote]

Ahh... well, it seems to be a lovely lens on either camera!
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mst
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#5
02-10-2011, 04:20 PM (This post was last modified: 02-10-2011, 04:20 PM by mst.)
[quote name='Brightcolours' timestamp='1297354738' post='6039']

Ahh... well, it seems to be a lovely lens on either camera!

[/quote]



Definitely!



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