Sigma 17-50mm F2.8 EX DC OS HSM

Announced Feb 20, 2010 •
Zoom lens | Canon EF, Pentax KAF3, Sony Alpha, Sigma SA, Nikon F (DX)
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Just a note of caution for potential buyers. On my Nikon D7100, and on a D7000 & D3200 i tested it so far exhibits an OS bug : OS is constantly activated. The OS switch has no effect (function). This comes with a series of side-effects : Battery drain, possible tripod use issues, image playback scroll is hindered, image preview auto-off is hindered, possible sharpness issues from unwanted stabilization with high shutter speeds, etc Also HSM is not full HSM: you have to switch to M in order to ...

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UmCamera
 
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for cropped frame it is a beautiful lens.. and its distortion on wide angle if pretty nice when you closeup a group

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Well, it's not what I expected. The build quality is nice, but the focus is loud (a stuttering grinding noise), there's shaking inside the lens, the lens hood is super loose, and lastly the zoom ring makes a screeching noise. It's no L glass build quality, but I wasn't expecting that either.

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I bought this lens with the SONY A- mount lens mount. It's amazing pictorial glass I wanted it for use in their NEX7 but there is a big problem! The lens can not AF with LA- EA1 reduction in broad focus ostri well but the focus of 50 mm are at greater subject distances out of focus . In AVH service I was told of the lens in this configuration incompatible with SONY NEX7 . That same lens I tested the SONY A57 with the body 's AF 100 %. With the reduction of the LA- EA2 translucent mirror lens on ...

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Nemsi
 
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I've not bought it yet but I'd love to. ..done a bit of research and looks awesome: Sharp images (except for the extreme corners at wide angle) and light transmission in overall A fine piece of glass (FLD) Fixed aperture at 2.8 (great thing for low light conditions) OS is rumored to be excellent I wouldn't mind a bit of vignetting at wide open (easy job in Lightroom) I'd say it's ahead of Tamron's 17-50mm ...very reasonable for it's price ...I guess it'll work fine for my D5100 I rate it ...

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likeafoxow
 
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This is a good lens. There are many pros about it - like good weight/balance, solid construction, excellent sharpness, accurate and fast focusing in good lighting - but there are some issues as well - like no full time manual, and inaccurate and slow focusing in poor lighting. Overall, it behaves well for a standard zoom. I don't expect this 600 dollar lens to blow me out of the water, but it has delivered for the most part. It is a much better value than the 1000 dollar Canon counterpart, ...

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JaroSK
 
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I bought this lens after I sold my Tamron 17-50 f2.8 VC. Now after 10 month I did many pictures in various conditions with Canon 550D Body. Mostly I shoot outdoors during the day and evening, and occasionally indoor without the flash. I did some travelling and made very very nice shoots. This lens is fast, sharp and good solid build. Handling as well is great except bit stiff zoom ring. Even though this lens is sharpest at f4, at f2.8 the image is very good as well. I made some pics to ...

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kdsand
 
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Great so far I've owned it for about a month. I can not fine tune focus since I have a 60D so i was expecting I would likely need to send it in for calibration. Fortunately its A.F. is great right out of the box. To me the main thing Canon's 17-55 has going for it is the manual focus is easier to control - other than that I feel they are very similar. After having shoot with the Canon version last week I can offer this as a hands on comparison. I've seen reviews stating the hood was ...

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This lens is really excellent. Very sharp, fast, AF works perfectly, and the 2.8 constant aperture is very useful. Build quality is excellent, and OS works very well. I'm very happy with it. The only thing that's a bit annoying for Nikon users is that the zoom rotates in the "wrong" way. But that's not a flaw.

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KoiKeeper
 
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Having had this lens only a month, using on my Canon 7D, I've shot enough to wonder why the other 7D user had problems. I am guessing (???) his personalized settings are causing his problems. This 17-50mm is behave like a champ for me. My only complaint is it could be faster and quieter. Image quality is as good as my L lenses. This surprised me, and pleased me: so much so that I just ordered another Sigma DC OS HSM FLD lens (the new version 18-200mm) Problems: noise

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