I post this as a warning for anyone researching this lens before purchase. I have a Sony a200 and recently bought a Sigma 70-300mm zoom. The reviews say it...

Need help with a lens problem i.e. the front element fell off. Does anybody have one of these that could describe the front of the lens? On mine I suspect that...

I've seen the test pages on the web but would like to hear what a real user thinks. Thanks 2br 2 bath 2 story log cabin in the woods...

Hello all, My partner's lens recently developed a fault and I was wondering if anyone had some suggestions as to what may be wrong and if it is worth...

I've used this lens on a Canon EOS300 (35mm) for 4 yr - always been fine. Until now. Now it won't auto focus - motor keeps running in the attempt, and also...

Has anyone used this Sigma lens on their D-100? Also----I have the Nikon 24-120 f3.5-5.6D lens, but.....ever since the strap broke and the camera with lens...

I'm thinking about buying a used Sigma 180 f5.6 macro and am not finding much information on it. Does anyone own one or have any experience with one that...

Hi Colleagues, Does anybody used lens "SIGMA 18 - 35MM F3.5-4.5 AF ASPHERICAL"? Is it so bad as photozone.de survey says? :) - MTF chart at photodo.com...

Hi Colleagues, Does anybody used lens "SIGMA 18 - 35MM F3.5-4.5 AF ASPHERICAL"? Is it so bad as photozone.de survey says? :) - MTF chart at photodo.com...

Anyone had any experience with the 17-125mm zoom from SIGMA? THOM

Thom wrote: Anyone had any experience with the 17-125mm zoom from SIGMA? You might have more luck searching for opinions if you...

This is on a 5D ( full-frame digital ) at 19 mm: http://forrestcroce.com/Photos/PublicMarketStarTrails.html I shot foreground and sky at f/8, and the stars...

The thing vignettes a lot, and it's got some issues with flare, but that's something you really can't avoid at such extremely wide angles. It ALSO doesn't...

Hi, I just bought the old Sigma 105mm macro lens on Ebay (i.e. not the new DG version) as it was going cheap (doesn't work with EOS digital, and I'm still a...

Hello, Does someone have ever compare both. I don't do Macro and wonder if i have to pay the extra money to afford a 135/2 that i know is excellent. Does it...

Hello, I'm looking for a macro lens. The sigma 105 EX seems to be very good and I was about to buy it when I realised that two versions of this lens...

Does anyone have experience using the Sigma 10-20mm lens on a 35 mm camera? I understand that vignetting occurs when this lens is used on a full- frame...

Hi all. My first post to these groups & I'm cross posting! Apologies for that, but I'm not sure which group is best for my query. Please feel free to set...

http://www.digitalreview.ca/cams/NikonD70versusRebelXT.shtml

Hi everyone, Here are my thoughts on this month's SI, as usual there are some great shots. road.jpg: A cracker to start with, the strong lighting and harsh...