jonj Posted September 1, 2008 Share Posted September 1, 2008 Just bought this lens brand new from B&H and it back focuses from 35-24mm I had to switch to my back-up which worked fine. I advise anyone who wants to use this lens for wedding photography or really any photography it's worthless past 35mm. Oh the back-up is a cheap Tokina 19-35mm and it was right on point! Link to comment Share on other sites More sharing options...
ronald_moravec1 Posted September 1, 2008 Share Posted September 1, 2008 People complain about Sigmas AF being off daily here. Don`t you read the posts. Return it and Sigma will correct it. They just have lousy QC on this point. Plus flaky paint. Link to comment Share on other sites More sharing options...
jonj Posted September 1, 2008 Author Share Posted September 1, 2008 Nope I don't read them I stay on the wedding forum 99% of the time just thought I'd share my findings over here as well. Link to comment Share on other sites More sharing options...
rob_miller2 Posted September 1, 2008 Share Posted September 1, 2008 If we're talking anecdotal evidence, mine focuses perfectly and is tack sharp from wide open, for what it's worth. Link to comment Share on other sites More sharing options...
squiggs77 Posted September 1, 2008 Share Posted September 1, 2008 I've had two EX lenses that had focus issues from Sigma. I've sent both in, and they both focus perfectly now. Despite these issues I still hold their EX lenses in high regard, and the 30mm f1.4 is one of my favorite lenses. Link to comment Share on other sites More sharing options...
eric_arnold Posted September 1, 2008 Share Posted September 1, 2008 speaking of the 30/1.4...<div></div> Link to comment Share on other sites More sharing options...
josephwalsh Posted September 2, 2008 Share Posted September 2, 2008 hmm...Front focused. Scratch's stomach and left sleeve are in focus and his face is out. This complicates things. Link to comment Share on other sites More sharing options...
eric_arnold Posted September 2, 2008 Share Posted September 2, 2008 could have been user error :) here's one from the following night,<div></div> Link to comment Share on other sites More sharing options...
eric_arnold Posted September 2, 2008 Share Posted September 2, 2008 i think i might have used a different area-AF setting in the second shot, so the first pic wouldn't be the sigma's fault. also, the stage lighting for the first pic was monochromatic (purple light which blends w/ black), while the second is tri-colored which is contrastier and easier on AF systems. as you can see, the second has more 'pop' to it. i still like the first, though. and yes, that is a lit stick of insence in his hat. Link to comment Share on other sites More sharing options...
eric_arnold Posted September 2, 2008 Share Posted September 2, 2008 here's another pic from the first night. i got lucky to get a bit of backlight which silhouetted him. stage lighting can be a bit tricky since it changes so frequently. that's not really the lens' fault either.<div></div> Link to comment Share on other sites More sharing options...
eric_arnold Posted September 2, 2008 Share Posted September 2, 2008 ...and of course, there's less margin for error at 1.4. Link to comment Share on other sites More sharing options...
elliot1 Posted September 2, 2008 Share Posted September 2, 2008 I doubt that every Sigma 24-70mm is defective. If you ended up with a bad Nikon lens, would that mean that ALL Nikon lenses of that type were worthless? Not all Nikon lenses are without issues - I have owned a couple that needed service. Link to comment Share on other sites More sharing options...
josephwalsh Posted September 2, 2008 Share Posted September 2, 2008 Eric, Yup...margin of error focusing a wide open 1.4? Like, there isn't any. Bet Scratch wasn't standing perfectly still for you, either. Good stuff. Link to comment Share on other sites More sharing options...
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