[alocky (Andrew lockwood)]

Worth noting that these plots are for a D200, not a full-frame sensor.

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Originally Posted by JA

Here is a comparison of the following 6 lenses at f/2.8 and f/4 for some communality and chosen as they were under discussion or closest to the discussion:

Nikon 180 f/2.8 ED -IF AF
Nikon 80-200 f/2.8 ED AF - set at 135mm
Nikon 70-200 f/2.8G ED-IF AF-S VR - set at 135mm
Nikon 70-200 f/2.8G AF-S ED VRII - set at 135mm
Zeiss 100 f/2 Makro_Planar
Nikon 105 f/1.4E ED AF-S

Unfortunately there is no data from the same source as above for the Zeiss 135 f2, but it performs very close to/on par with the Nikon 105 f1.4 in other direct resolution tests on the lens tip website and shown in the 6th column in this comparison. There is also no comparable data for the Nikon 80-200 f2.8 AFS, although it is somewhat sharper in the corners than the Nikon 70-200 f2.8VR, but not the VRII.

Also note the test data is for all intents and purposes in comparative form "blur units". One Unit being equal to the equivalent of one blur-more operation in PS (and that took some digging to discover). It uses the same data as DXO for sharpness and is processed in a manner which considers human perception of sharpness ( a meld of contrast and resolution in a correctly focused image).

LOWER is better (closer to the bright Magenta Colour indicates less Blur) in the 3D graph.
Happy viewing .... EDITtrying to replace with a better image of the screenprint I used. No Luck with larger , best to just use "CTRL +" to enlarge and peer through the haze.


Best
JA