If you want to test calibration, try to focus manually via liveview vs regular AF. If the liveview looks considerably sharper then you probably have a focus calibration issue. If not, then you are just seeing the difference in optics.
tkbslc Cream of the Crop 24,604 posts Likes: 45 Joined Nov 2008 Location: Utah, USA More info | Oct 23, 2009 12:21 | #31 If you want to test calibration, try to focus manually via liveview vs regular AF. If the liveview looks considerably sharper then you probably have a focus calibration issue. If not, then you are just seeing the difference in optics. Taylor
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pixel_junkie Goldmember 2,013 posts Likes: 143 Joined May 2007 Location: Southern California More info | Oct 23, 2009 12:48 | #32 Stealthy Ninja wrote in post #8879562 I recently got this lens. Noticed some slight back focus. So I took it to Canon to be calibrated. Came back the same (well maybe slightly better). It's soft at 1.8 (not terribly so, but enough to notice). OK at 2.2 and above (as you said). Slightly disappointed to say the least. Oh well, I just want it as a light everyday lens so I don't have to lug around one of my L zooms. It should be OK for that function. I do like the focal length quite a bit and 1.8 will be OK for those times I need to get some speed in low light (so long as critical sharpness isn't an issue). It's still worth the saving in price and weight over the 35L IMHO. Though I'm sure the 35L is worth the difference in PRICE alone for the IQ (but weight was my main concern for this lens in the end). For work, I'll be using my 16-35. It's just as sharp at 2.8 I think. Oh and I only really notice the sharpness problem when I pixel-peep, so mainly it will do fine. ![]() The lens certainly is capable of producing pretty good images. BUT, ... at this point, I personally chose my lenses based on how much "WOW" it can give me with the least amount of post processing. I found the 28 doesn't do so well in that department (for me). I really had to put some effort into post processing to make the images pop. Currently, I own another lens that has the same "problem" and although very sharp, the images from it are just dull (for my taste) and it may be on it's way out soon. Anyhow, the 28 is nice ... but there are better alternatives.
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StealthyNinja Cream of the Crop 14,387 posts Likes: 4 Joined Nov 2007 Location: Mythical Tasmania (the one with lots of tall buildings in the semi-tropics, A.K.A. Hong Kong) More info | Oct 28, 2009 01:35 | #33 Permanent ban^^^ Yeah it seems pretty nice for the price. I like the weight too. Very handy little lens for me. If I were on crop (like you) I would have gone for the 30mm Sigma I guess.
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tkbslc Cream of the Crop 24,604 posts Likes: 45 Joined Nov 2008 Location: Utah, USA More info | Oct 28, 2009 01:38 | #34 Stealthy Ninja wrote in post #8908962 However, I like 28mm (FF) but not 50mm (which is sort of 30mm on a crop). So I think I'd go even wider if I were still on a crop body. Which sadly does NOT EXIST for a crop camera. Unless you want giant so-so Sigma lenses or mediocre f2.8 lenses from Canon. Taylor
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StealthyNinja Cream of the Crop 14,387 posts Likes: 4 Joined Nov 2007 Location: Mythical Tasmania (the one with lots of tall buildings in the semi-tropics, A.K.A. Hong Kong) More info | Oct 28, 2009 05:31 | #35 Permanent bantkbslc wrote in post #8908973 Which sadly does NOT EXIST for a crop camera. Unless you want giant so-so Sigma lenses or mediocre f2.8 lenses from Canon. Or a zoom
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