IS vs Sharpness.

["Matthew"]

Ok sry for having two threads, I could not figure out how to delete the other one.

Ok I have decided to get a new lens. That lens it the tamron 17-50 2.8. Question. Should I get the VC version or not?

VC MTF charts

NON - VC MTF charts.

Side by side comp.

I will be shooting at 2.8 a fair bit of the time. and as you can see the corner performance at 2.8 and 50mm is HORRID.(on the VC)

What do you guys think, My current lens(17-85 f/4-5.6) has IS and I use it a lot. Will the 2.8 on the tammey be enough or should I sacrifice the significant improvement in sharpness for the VC?

Thanx
I need to order this tomorrow and you guys are usually fast


Note: my photography: mostly landscapes, urban landscapes and still life. Sometimes people and animals.

[RichardTaylor]

I have the non VC version and auto focussing in low light (like inside concerts) is awful. I don't bother using it for those events any more, preferring to use fast primes instead.
In good light it is OK, however it doesn't see much use any more as I have better lenses now..
.