After reading and watching a LOT of reviews, I finally purchased the 24-70mm f/2.8 II. It's my 2nd red ring. My first one was the 17-40mm f/4. I'm not sure why, but neither the zoom nor the focus feels as smooth as the 17-40mm. I realize the 17-40mm doesn't have as much glass in it, but the 24-70mm feels and sounds like there's some abrasion. The zoom feels tighter, which I guess if from the extra glass. It still sounds odd, though. The focus feels looser than the buttery smooth 17-40mm. Did I get a bad copy? Should I exchange it for another?
Bad 24-70mm?
- Thread starter GuyWithCamera
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Return it while you can, focus should be smooth. If you use a AF lens for manual focus, it is always going to be a compromise. The characteristics that make for fast autofocus also make manual focus more difficult.
From the DPR Review:
"The focus ring in particular feels very smooth; on our review sample the zoom ring was slightly stiffer in action."
http://www.dpreview.com/lensreviews/canon-ef-24-70mm-f-2-8l-ii-usm/2
From the DPR Review:
"The focus ring in particular feels very smooth; on our review sample the zoom ring was slightly stiffer in action."
http://www.dpreview.com/lensreviews/canon-ef-24-70mm-f-2-8l-ii-usm/2
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Thanks for the replies. I'm definitely returning it for another copy. I'm quite disappointed that I'll have to wait for shipping both ways now.
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agierke said:
Ha, the focus ring of my 24-105 has gotten a little abrasive due to desert sand getting in there (fortunately not in the lens itself) but only if you push it beyond the stops. It's still a killer lens though
Were you shipping it through a desert by any chance? ;D
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mrsfotografie said:agierke said:
Ha, the focus ring of my 24-105 has gotten a little abrasive due to desert sand getting in there (fortunately not in the lens itself) but only if you push it beyond the stops. It's still a killer lens though
There are no stops on a 24-70mmL, or on a 24-105mmL, or any of the USM lenses with full time manual focus. They have a slip clutch and that is what allows full time manual focus. Try it, you can keep turning the focus ring as long as you want and will not reach a stop. Of course, the lens elements have a stop, but the focus ring is designed to keep turning without any damage.
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Mt Spokane Photography said:mrsfotografie said:agierke said:
Ha, the focus ring of my 24-105 has gotten a little abrasive due to desert sand getting in there (fortunately not in the lens itself) but only if you push it beyond the stops. It's still a killer lens though
There are no stops on a 24-70mmL, or on a 24-105mmL, or any of the USM lenses with full time manual focus. They have a slip clutch and that is what allows full time manual focus. Try it, you can keep turning the focus ring as long as you want and will not reach a stop. Of course, the lens elements have a stop, but the focus ring is designed to keep turning without any damage.
Yep. It has a slip-clutch and that's what I meant with 'pushing it beyond the stops'
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