Two bad samples of each - Nikon 24-70/2.8 and 70-200 2.8 VRII zooms!

Started Aug 19, 2012 | Discussions thread
ForumParentFirstPreviousNextNext unread
Flat view
Zacharias
New MemberPosts: 18
Like?
Two bad samples of each - Nikon 24-70/2.8 and 70-200 2.8 VRII zooms!
Aug 19, 2012

First of all, I apologize for such a long message.

A month ago I have purchased Nikon D800E with two lenses,
24-120/2.8 and 70-200/2.8 VRII.
First I put to the test 24-120 zoom, and due to really a very bad performance
of that sample, worse then expected and worse then shown in various
online reviews, so I decided to return it, to spare me from a trouble of
trying to find a decent sample of that 24-120 zoom.

Instead, I added some cash anf took 24-70/2.8 knowing it's high reputation, in

hope that for that kind of money I will get some great quality in return. But ... that
was only the beginning of my trouble.

First sample of 24-70 was very good at it's wide range (24,28 and 35) but
at 50 and 70mm it had very soft right edge and corners, while left
edge and corners were of much better resolution. It was very asymmetric
in performance across the frame.

I returned that one, got another one 24-70/2.8 and that one was the opposite
case, it was fine at 50 and 70mm, but edges and corners at 24, 28 and
35 were much worse then was the case with a first sample.

At the same time I put 70-200/2.8 to the test. To my complete disappointment
I got very asymmetric results across the frame, some edges and corners
were very soft, sometimes upper left corner, sometimes lower right corner,
sometimes left, sometimes right edge of the frame,. depending of a chosen
focal length.
I returned it, and got another sample, that one even had a serious problem with
a very center of the frame, corners and edges as well, on various focal lengths.

If left edge and corners were fine at 70 up to 105, it was soft at 135 and 200, etc.
Very uneven, asymmetric picture quality across the framer.

I know that edges and corners are always inferior to the very center of the frame,

but with all tested zooms (two of each 24-70 and 70-200) it was very easy to spot
that some corners and edges are much worse then the rest of corners and
edges of the same sample. And each sample was noticeably different in
performance at various zoom settings (focal length wise).

Need to stress that all tests were conducted at very high shutter speeds,

each zoom focal length setting and aperture setting were used for not less then three times (three similar frames), and then the best one was chosen and examined.

Tests were done on three different targets and for the given lens always the same

problem appeared at the very the same focal setting and at very the same part of the frame, be it corner or edge.

In that way, by repeated tests at three different targets, getting similar results each and
every time, I believe I fully eliminated error on my side.

Knowing the very high reputation of those two lenses (both are a part of Holly Trinity)
I am stunned with rather poor optical performance.

Anyone with similar bad experience with those 24-70/2.8 and 70-200/2.8 VRII zooms?

What to do, after two tested samples of each, and two returns of each? We are talking

here about two Nikon zooms of the highest reputation, and very pricy as well, so I am
wondering how many samples I need to try before I find a decent one?

If those Top of the line Nikon zoom lenses display such problems, what to expect
from other less famous Nikon zoom lenses?

On my wanted list is Nikon 14.24/2.8 but I put that one on hold till I find decent 24.70
and 70-200 samples.

Nikon D800E
If you believe there are incorrect tags, please send us this post using our feedback form.
ForumParentFirstPreviousNextNext unread
Flat view
Post (hide subjects)Posted by
ForumParentFirstPreviousNextNext unread
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow