I've found the Zuiko 28/2.8 to be the worst of the Zuiko 28's. I've tried
them all on my FF Kodak SLR/c and found the /2 and /3.5 to be much better.
Also, becuase many Zuiko's are old and out of adjustment, no solid
conclusion should be made from a single sample. A good performing Zuiko 28/2
will blow away any zoom lens on a FF DSLR in the corners, even at f/8.
Other things also need to be considered, like the adapter you used and how
you focused. The 28mm primes (including the Zeiss and Leica's) are very
picky about what adapter you use on them. A poorly matched adapter will give
poor results. It is often not as critical on a zoom lens at 28mm because
they are much steeper retro-focus design at 28mm. For focus stopped down,
leaning much more than you would think resonable to the infinity mark will
give much better corner performance and DOF. Odd, but true. This has been
discussed on FredMiranda, and everyone who's tested (including myself) has
came to this same conclusion.
Paul
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx]On
Behalf Of usher99@xxxxxxx
Sent: Tuesday, September 26, 2006 4:43 PM
To: olympus@xxxxxxxxxx
Subject: [OM] Re: Tokina/Kiron/Zuiko 28mm test, was: Vivitar/Kiron 28/2
questions
Thanks for the effort Chuck--that was instructive. I spent some time
eye-balling the info.
I liked the color rendition of the Zuiko best-though as you say the lighting
may have played a role. The contrast appeared better as well.
The Tokina beat the Kiron on edge performance to my eye on my monitor at 5,6
or wider.
I would use the Kiron 28 I own on a 5D, however, w/o much hesitation .
Thanks again for the detailed evaluation.
Mike
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