Thanks, David.
Would you care to make a guess for the second most sharp lens in that
group? (Let's include the ones you added to the list.)
Thanks,
Glen
At 01:54 AM 8/19/2005, David Oswald wrote:
You forgot a couple other options:
SMC Pentax-FA 80-320 f/4.5-5.6 - Frankly, not a bad lens for what it
is. Better than the 100-300 in image quality.
SMC Pentax-FA 80-200 f/4.7-5.6 - Very compact, inexpensive, reasonably
sharp, and uses 49mm filters (the same as your 50mm f/1.4 lens).
I've got the 80-320 and have found that if I stop it down a bit its pretty
good.
The 50-200 is probably the best of the ones you've mentioned though.
Glen wrote:
Hi,
I was hoping that someone on the list could help me figure out which of
these Pentax zoom lenses performed the best. I would be using these on
the *istDS, so the crop factor might possibly be something to consider. I
think I also read somewhere that the digital bodies especially need a
lens with higher resolution, because of their smaller image size. Also,
if one of the lenses has been reported to be slightly soft in the corners
on 35mm film, that might still be okay. With the digital body's smaller
image size, those "corners" no longer exist -- if you know what I mean. ;-)
Here is the group I'm tentatively considering:
SMCP-DA 50-200mm f/4-5.6 ED
SMCP-FA J 75-300mm f/4.5-5.8 AL
SMCP-FA 100-300mm f/4.7-5.8
I realize that the first lens is the only one of the three designed
expressly for the digital bodies. I also realize that it's the only one
with internal focusing, and the only one which won't rotate my polarizer
during focusing.
However, which one should provide the best image quality?
If there is anything else I should know, feel free to mention it, but
image quality when used on an *istDS is my main concern for now.
thanks,
Glen
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