I initially was shooting the Bigma with a monopod and kept
wondering why I was getting softer images than I'd liked at the
long end. I also realized that lens is very light hungry.
Flipping up to 320 to 400 ISO helped a lot as well and I switched
to a tripod, problem solved. Images became very sharp.
The curious thing about the Tamron, and I don't know if you've
experienced it or not, is that it seemed like the the images were
fairly sharp, but they were missing that "Stand out" look. I can't
put my finger on if I think it was contrast or sharpness or what
exactly it was. Heck, it might have been the copy I was using
(Borrowed a friend's, he's not great with his gear though)
Every lens has it's quirks. Like I said, it's probably just
getting over that hump of a learning curve and finding what that
magic spot is that the lens likes. Every time we all get a new
lens we immediately go out and shoot a bunch and see what we get
before we get to really know the lens and it's quirks and "tricks"
if you will.
We also tend to be harder on ourselves than the average photo viewers.
LOL The crop factor, a blessing and curse all in one. LOL
Seriously, please post more with that lens. There are many,
including myself, that would love to see a Tamron home run that
makes that focal length more affordable.
Julio
http://www.pbase.com/loansharkx
AT least you tried it.
I agree that there is a big learning curve with this kind of ultra
telezooms. I think that the limiting factor wit such high reach
lenses are the photographers.
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I love the crop factor at the long end, I hate it in the wide range