Tamron SP 70-300mm F4-5.6 Di VC USD - Optimum settings?

Hi,

I understand that although its a great lens its supposed to be a bit soft at 300mm and wide open (like most zooms I seem to think), but do any of you good people know where the sweet spot is on this lens?

Ta.

At 300mm, f8 is slightly better than F5.6.

http://www.photozone.d​e …ron70300f456eos​ff?start=1

Those are pretty nice results for a <$500 zoom lens.

Thanks, I had a feeling f8 would be the number, and I would guess 250mm, lens wise it is pretty good, I had the 70-200 (non-IS) but wanted a bit more reach and have found the Tammy to be slightly sharper, due I expect to it having VC (Tamron's IS).

I have and still do wonder about the 100-400 but its a bit more expensive again at a bit over £1000 and I'm not too sure about the weight (although it has to be lighter than my Sigma 150-500!)