I find my 70-200 f2.8 sigma a little short for covering soccer and was thinking about a lens extender. I've read alot about Canon extenders here, but does anyone have any experience with sigma extenders.
22littlereasons Senior Member 321 posts Joined Nov 2004 Location: Canada More info | Nov 23, 2004 22:54 | #1 I find my 70-200 f2.8 sigma a little short for covering soccer and was thinking about a lens extender. I've read alot about Canon extenders here, but does anyone have any experience with sigma extenders.
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J.A.F.Doorhof Goldmember 3,274 posts Likes: 15 Joined Jul 2003 Location: Emmeloord, The Netherlands More info | Nov 23, 2004 23:46 | #2 Hi, www.frankdoorhof.com
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DocFrankenstein Cream of the Crop  12,324 posts Likes: 13 Joined Apr 2004 Location: where the buffalo roam More info | Nov 24, 2004 00:11 | #3 J.A.F. Doorhof wrote: Hi, The canon convertors will not work. I own a Sigma 1.4x convertor and love it, it has almost no (or at least I can't see it) picture degradation and is small. I also tried a 2x extender but found the light loss to be a problem but also that picture still looked nice. Greetings, Frank Are you sure about the canon converters not working? National Sarcasm Society. Like we need your support.
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J.A.F.Doorhof Goldmember 3,274 posts Likes: 15 Joined Jul 2003 Location: Emmeloord, The Netherlands More info | Nov 24, 2004 00:13 | #4 I believe the Canon convertors only work on their L-glass. www.frankdoorhof.com
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Cadwell Cream of the Crop  7,333 posts Likes: 2 Joined Jan 2004 Location: Hampshire, UK More info | Nov 24, 2004 00:26 | #5 J.A.F. Doorhof wrote: I believe the Canon convertors only work on their L-glass. But I could be wrong offcourse. Greetings, Frank You're wrong. The Sigma EX and the Canon EF convertors are completely interchangeable (I have / had both). They also suffer from the same limitations in terms of only working with lenses with recessed rear elements, number of stops you lose and their effect on AF speed. Glenn
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Nov 24, 2004 00:31 | #6 When you say "They also suffer from the same limitations in terms of only working with lenses with recessed rear elements and in terms of the number of stops you lose." Do you mean the 1 stop loss for 1.4x and 2 stop loss for 2x rule I've been reading about around here?[/QUOTE]
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Cadwell Cream of the Crop 7,333 posts Likes: 2 Joined Jan 2004 Location: Hampshire, UK More info | Nov 24, 2004 00:34 | #7 22littlereasons wrote: When you say "They also suffer from the same limitations in terms of only working with lenses with recessed rear elements and in terms of the number of stops you lose." Do you mean the 1 stop loss for 1.4x and 2 stop loss for 2x rule I've been reading about around here? Yes. Also see the comment I added about AF speed. Glenn
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CyberDyneSystems Admin (type T-2000)  More info | Nov 24, 2004 00:41 | #8 |
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