Sharpness of 70-200 2.8 Sigma EX lenses

[MrKickalot]

I got my Canon 50mm 1.8 II on Thrusday and over the weekend thought I would do a little test. I sat my daughter down and set the camera up on a tripod, took the 18-55 that came with the camera, went to about 50mm and snapped a shot, switched to the Canon 50mm without moving the camera and took another shot. I was shocked how much sharper the 50mm was on the exact same settings.

Is there anyone out there that has both the Sigma 70-200 f2.8 and the Canon 50mm 1.8 that can compare the sharpness of these two lenses?

Thanks!

Jason

[vsolanoy]

On the topic of lenses, I was comparing the following lenses (including the one that Sigma MrKickalot was wondering about.

-Canon EF 17-40mm f/4L vs Sigma 17-35 f/2.8-4.0 EX
-Canon EF 20-35mm f/3.5-4 vs Sigma 20-40mm f/2.8

I was doing some lens comparisons my self with my existing lenses, all of which were the lenses I used with my Rebel 2000 and noticed a distinct lack of sharpness with the Rebel 2000 kit (I think it's a 28-90mm... don't have it in front of me), the same goes with the Sigma 70-210 lens that I have.

I'm hoping to find a "normal" zoom lens for my 10D that I can actually afford...

Victor

[chris.bailey]

I got my Canon 50mm 1.8 II on Thrusday and over the weekend thought I would do a little test. I sat my daughter down and set the camera up on a tripod, took the 18-55 that came with the camera, went to about 50mm and snapped a shot, switched to the Canon 50mm without moving the camera and took another shot. I was shocked how much sharper the 50mm was on the exact same settings.

Is there anyone out there that has both the Sigma 70-200 f2.8 and the Canon 50mm 1.8 that can compare the sharpness of these two lenses?

Thanks!

Jason

Onw of the Canon 50mm primes will be sharper than any of the Zooms, L or no L.

[fishingjts]

I have both the canon 50mm II 1.8 and the Sigma 70-200 2.8 EX APO. I have not had a chance to compare the sharpness between the two... But for me they are both good lens.

For Sigma samples try a couple of my albumns:

http://www.tammyandjohn.com/PhotoAlbum/Detroit%20Zoo/index.htm

http://www.tammyandjohn.com/PhotoAlbum/Sports/Wrestling/index.htm

[ron chappel]

I did an allmost identical test with the same results.That 50/1.8 sure is a good 'reference' lens.

Maybe we should make it compulsory for any lens test to include the 50? :wink: :P

[nosquare2003]

I don't have the 18-55mm lens but have no doubt that any primes of that range will out perform this lens.

It's a bit unfair to compare the 50mm with 70-200mm lens. But certainly, you want quality. CDS has done a comparison of Canon 70-200L with Sigma one here:

http://photography-on-the.net/forum/showthread.php?t=22421