Archived posting to the Leica Users Group, 2015/10/30

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Subject: [Leica] OT- Nikon 24-70 VR test at lenrental.com blog
From: alal at nyu.edu (Akhil Lal)
Date: Fri, 30 Oct 2015 20:33:31 -0400

The lenrentals.com  blog is an outstanding source of information on lens
performance. For those who have not seen the site, lens rentals tests 10
samples of a lens and presents  MTF curves showing the performance averaged
over 10 samples with a figure of merit representing sample to sample
deviation.

As a  D800E/24-70 G owner, I have been looking forward to the new VR
version of this lens, so their latest post was of great interest. See:

http://www.lensrentals.com/blog/2015/10/nikon-24-70mm-f2-8-ed-af-s-vr-sharpness-optical-bench-testing

Looking at the  data, Nikon optical designers have made an unusual optic .
The VR 24-70  sacrifices a fair bit of center and mid-field  sharpness  at
the shorter focal lengths in order to retain better edge sharpness. It will
be interesting to see how this characteristic manifests itself  in images
taken with high MP sensors.

Akhil