Hello All,
I just picked a Tamron 17-50 for my K200D to boost the low light capability of my kit...
Pretty quickly I realised something was wrong, and after taking shots of a scale at a 45 degree angle, I could see that with AF it kept focusing a little before the point I was aiming at... with MF of course things were totally fine... with all the sharpness I expected from it...
So I went back to the shop and got another one... with exactly the same results... with AF it keeps focusing a little ahead of whatever I focus on...
Now this shop won't refund me, would rather send the lens to Tamron for repair etc...
So my question...
(1) is this something that a repair would fix, or is this a generic problem with the lens (since it happened across two samples)
(2) is there anything else that I can do to by pass this issue? I know with K20D etc you can customize AF... but I don't think that is an option with K200D...
(3) will the Sigma version be better in this regard? what are the trade-offs?
Otherwise, I think I would be forced to pick something else from the shop since I can't get my money back... I had avoided the DA*16-50 to avoid getting into such a trap with QC issues...
Any inputs will be appreciated...