edward_h Posted August 17, 2005 Share Posted August 17, 2005 I've loaned a Sigma 180 and compared it to the 200IS. Might be of interest if you're interested in a 180. http://mindreantre.se/index.php?page=php-review-sigma_180_vs_canon_70-200is Link to comment Share on other sites More sharing options...
lee_carruthers Posted August 17, 2005 Share Posted August 17, 2005 Pretty grim for the Sigma! Link to comment Share on other sites More sharing options...
mark u Posted August 17, 2005 Share Posted August 17, 2005 That looks like a defective lens. I wouldn't want to draw any conclusions unless that's the best it could do after being serviced or exchanged. Did you check it using manual focus? Link to comment Share on other sites More sharing options...
Former P.N Member Posted August 17, 2005 Share Posted August 17, 2005 I would vote for a defective Sigma. I have both Sigma 180 and Canon 70-200IS and can assure you that the Sigma 180 (original version) is much better than your tests show. Link to comment Share on other sites More sharing options...
panos_voudouris Posted August 18, 2005 Share Posted August 18, 2005 Hmmm, the Sigma in Macro is sharper than the zoom. Naturally it would be, but it if it was defective one would expect it would be bad in macro too. So it kind of looks to me that the Sigma is front-focused on the wall and the improvement is puerly down to the DOF increasing at smaller apertures. The fact that it was tested twice doesn't mean it didn't front focus twice. Try it with manual focusing again. Link to comment Share on other sites More sharing options...
alan_chan4 Posted August 18, 2005 Share Posted August 18, 2005 Focus issue for certain. Even consumer lenses don't perform that poor. It's best to manual focus with magnifier to be fair. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now