03-06-2011, 03:41 PM
[quote name='boren' timestamp='1299415742' post='6553']
For sure I won't purchase a copy that isn't totally free of any signs of de-centering at f/11 ...
[/quote]
If you take this serious, you should eventually not buy such a lens.
For most of the focal length, f/11 is not yet 2 stops down ... not much
to let the mentioned centering weaknesses completely disappear.
You buy such a lens for a reason ... that is flexibility an convenience.
There is a price to pay for that.
Just my 2cts ... Rainer
For sure I won't purchase a copy that isn't totally free of any signs of de-centering at f/11 ...
[/quote]
If you take this serious, you should eventually not buy such a lens.
For most of the focal length, f/11 is not yet 2 stops down ... not much
to let the mentioned centering weaknesses completely disappear.
You buy such a lens for a reason ... that is flexibility an convenience.
There is a price to pay for that.
Just my 2cts ... Rainer