.Davis. Senior Member  439 posts Joined Dec 2009 Location: Wisconsin More info | Nov 25, 2010 17:48 | #1 I'm really having a difficult time choosing between these two. I can't say I'm a Canon brand junkie, I'm open to 3rd party lenses, so that isn't the issue.  also found this..... http://www.focalplane.net/canon28sigma30/  Sigma pulls ahead slightly for reasons that are also high on my priority list. Larger aperture and with that, obviously quicker because I shoot wide open a lot Flickr
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AntonLargiader Goldmember  More info | Nov 25, 2010 19:24 | #2 Less than a week old: Image editing and C&C always OK
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Nov 25, 2010 20:23 | #3 AntonLargiader wrote in post #11346271 Less than a week old: https://photography-on-the.net/forum/showthread.php?t=960935 Ah, thank you! Flickr
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jb1911 Senior Member  492 posts Joined May 2010 Location: Chicago area More info | Nov 26, 2010 09:58 | #4 .Davis. wrote in post #11346479 Ah, thank you! One thing I didn't realize or forgot to think about was the minimum focus distance. That right there pretty much sells me on the Canon What are the minimum focusing distances on these two lenses? 7D/BG-E7 - 580EXII - EF-S 17-55mm f/2.8 IS USM - EF-S 60mm f/2.8 Macro USM - EF-S 10-22mm f/3.5-4.5 USM - in a Domke F-2RW
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Sigma: 15.7" 7D | 8mm 3.5 FE | EF-S 10-22 | EF-S 17-55 2.8 IS | EX DC 30 1.4
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AntonLargiader Goldmember More info | Nov 26, 2010 10:03 | #6 This page will compare the specs that are in the POTN lens table: Image editing and C&C always OK
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Nov 26, 2010 17:33 | #7 AntonLargiader wrote in post #11348436 This page will compare the specs that are in the POTN lens table: http://www.largiader.com …re.php?lens1=63&lens2=196 Some of the info in that table seem incorrect. Flickr
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JohntheGeek Senior Member  911 posts Likes: 1 Joined Nov 2009 Location: South Bend, IN More info | Nov 26, 2010 17:54 | #8 .Davis. wrote in post #11350490 Some of the info in that table seem incorrect. First, the price  but that's always changing.Second, the "Full time manual", from my understanding, Canon does have this Third, I have a Canon XS (1.6x Crop) so does the APS-C- "no" on the canon mean it won't work? because I've also seen otherwise. Lastly, the Sigma looks better on paper, but as far as the image quality goes, Canon seems to be way more consistent. Have things changed over the past couple years? Has Sigma fixed it's focus issues? Does the front element extend on either/both of these? The 28 is a fantastic lens. I almost sold mine when I bought the 16-35mm 2.8L, but the 16-35's bokeh just isn't as good as the 28 for portraits with lights or candles in the background so I'm keeping it. Canon Gear: 7D Gripped :: 16-35mm ƒ/2.8L II :: 24-70mm ƒ/2.8L :: 70-200mm ƒ/2.8L IS II :: 28mm ƒ/1.8 :: 50mm ƒ/1.4 :: 85mm ƒ/1.8 :: 200mm ƒ/2.8L II :: 180mm ƒ/3.5L Macro :: Extenders 1.4x II and 2x II :: Speedlites 430EX II (x2) and MT-24EX Macro Twin Lite
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twoshadows Liquid Nitrogen  7,342 posts Gallery: 52 photos Best ofs: 19 Likes: 4904 Joined Jul 2007 Location: Between the palms and the pines. More info | Nov 26, 2010 17:57 | #9 Both lenses have FTM. Only the Canon will fit all 3 Dslr formats (the Sigma is APS-c only). I don't believe the front element extends on either lens. One has f/1.4, while one has a shorter MFD. IQ is roughly the same, as is focusing (assuming good copies of each lens). xgender.net
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AntonLargiader Goldmember More info | Nov 26, 2010 20:26 | #10 .Davis. wrote in post #11350490 Some of the info in that table seem incorrect. First, the price but that's always changing.Especially for a current lens I think that's a question of what you want to list: the MSRP, street price or used price. Dunno which is listed. Second, the "Full time manual", from my understanding, Canon does have this Yup - no idea why that says no. This data is from a file that someone made based on Roger's lens table. I can fix that but I should probably audit the whole file. There are about 300 lenses in the table. Third, I have a Canon XS (1.6x Crop) so does the APS-C- "no" on the canon mean it won't work? No, that means it's not APS-C specific. A Canon EF-S lens or a Sigma DC lens would be crop-specific. Full frame lenses (EF, DG) work on any DSLR. Lastly, the Sigma looks better on paper, but as far as the image quality goes, Canon seems to be way more consistent. Have things changed over the past couple years? Has Sigma fixed it's focus issues? Does the front element extend on either/both of these? IQ and focus performance are two different things. From what I can tell, older Sigma lenses may need re-chipping to work on newer DSLRs but the IQ is fantastic. Image editing and C&C always OK
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Thanks a lot for the help guys, I am pretty set on the Canon after I went to the local camera shop and discussed both lenses with one of the gentlemen that work there. He has reinforced my decision undoubtedly. Flickr
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jb1911 Senior Member 492 posts Joined May 2010 Location: Chicago area More info | Nov 26, 2010 21:14 | #12 .Davis. wrote in post #11351287 Thanks a lot for the help guys, I am pretty set on the Canon after I went to the local camera shop and discussed both lenses with one of the gentlemen that work there. He has reinforced my decision undoubtedly. I can't wait for this lens  Come back with some info and photos when you get it. I want one too. 7D/BG-E7 - 580EXII - EF-S 17-55mm f/2.8 IS USM - EF-S 60mm f/2.8 Macro USM - EF-S 10-22mm f/3.5-4.5 USM - in a Domke F-2RW
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Tony-S Cream of the Crop  9,911 posts Likes: 209 Joined Jan 2006 Location: Fort Collins, Colorado, USA More info | Nov 26, 2010 21:20 | #13 .Davis. wrote in post #11351287 Thanks a lot for the help guys, I am pretty set on the Canon after I went to the local camera shop and discussed both lenses with one of the gentlemen that work there. He has reinforced my decision undoubtedly. I can't wait for this lens Been there, done that. The Sigma was the easy winner when I was on a crop camera. "Raw" is not an acronym, abbreviation, nor a proper noun; thus, it should not be in capital letters.
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Tony-S Cream of the Crop 9,911 posts Likes: 209 Joined Jan 2006 Location: Fort Collins, Colorado, USA More info | Nov 26, 2010 21:22 | #14 twoshadows wrote in post #11350588 Both lenses have FTM. Only the Canon will fit all 3 Dslr formats (the Sigma is APS-c only). The Sigma works on APS-H with just a bit a vignetting. Completely usable, though. "Raw" is not an acronym, abbreviation, nor a proper noun; thus, it should not be in capital letters.
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24Peter Senior Member  821 posts Likes: 1 Joined Nov 2005 Location: Dover, NJ More info | Nov 26, 2010 21:25 | #15 .Davis. wrote in post #11351287 Thanks a lot for the help guys, I am pretty set on the Canon after I went to the local camera shop and discussed both lenses with one of the gentlemen that work there. He has reinforced my decision undoubtedly. I can't wait for this lens Well for anyone else who's on the fence, here's my experience. I owned the Sigma for a short time about three years ago with my 40D. I was very impressed with the image quality; but I ultimately went with the Canon 28 1.8 (which I still have) for two reasons: 1. AF performance on the Sigma was too hit or miss; and 2. the edges are soft on the Sigma below f2.8 - worse than the Canon. If they have updated the AF performance on the Sigma, it would be a killer lens. Here are some sample pics from the Sigma:
Nikon D850/D750
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