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Ok forget build quality...forget focus luxuries...forget super wide open
apertures.

What is the best IQ standard zoom when stopped down from between f8 to
f16. This includes edge to edge sharpness, contrast and colour. The best
image blown up to large print size. This is all regardless of available
light and wether it's hand held or not. In fact lets say it's on a tripod to
be sure.

Not super wide but lenses that could be regarded as walk arounds.

Lets add bang for buck marks as well.

And the contenders are (in no specific order):

1. Canon 17-85 IS
2. Canon 17-40 L

I have a Canon 17-40 L and it is sharp as a tack, it is my stay on the
camera lens. I have samples of the 17-85IS and it is nowhere near as sharp.
The others I do not have and have no wish of trying.

Jean

3. Sigma 17-70 2.8/4.5
4. Sigma 18-50mm f/2.8 EX DC
5. Tamron 17-50mm f/2.8

I won't include the up and coming Tokina. Apoligies if I missed something.

Let the contest begin!

Sie