better zoom glass...tokina ATX or sigma EX???

w.a. manning wrote:

say the tokina AT-X PRO f2.8 80-200 vs the sigma EX APO f2.8 70-200.

I'd happily say "go Tokina". I didn't buy one myself (when there was a lovely
used one up for sale a few years ago) I went for a new OEM instead. On the web
I had found a few mentions that the Tokina had some issues with lubricant
migration. I don't know that this is true or not, but it did give me pause.

That particular Sigma should be a bit better for sharpness/a bit worse for
distortion than the Tokina, but Sigma build quality is questionable (the ones
I've seen and held which does not include the one above).

Tokina: distortion: -1.28 to 2.69%, 3.4/5.0 for wtd sharpness
Sigma: -2.22 to 3.79%, 3.9/5.0 for wtd sharpenss

(source: photodo).

G'luck,
Alan.



--
-- rec.photo.equipment.35mm user resource:
-- http://www.aliasimages.com/rpe35mmur.htm
-- e-meil: there's no such thing as a FreeLunch.--