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"However, not all such lenses require the shorter back focus, and may feature the standard EF mount."
Any examples? I thought all EF-mount lens were designed for 35mm. (All EF-S lenses are designed for APS-C, of course.) There were a few EF lenses designed for APS film way back when, I believe, but not digital APS-C in particular.
--22:26, 3 December 2006 (UTC)
- AFAIK, Canon doesn't have any EF (non EF-S) lenses designed for a smaller image circle than 35mm. The kit lenses for the IX and the IX Lite were 22-55 and 24-85 full frame 35mm lenses. Other manufacturers like Sigma and Tamron have APS-C type lenses in regular EF mount, though. mvdhout 01:34, 10 December 2006 (UTC)
I would love to see a list of pros and cons compared to EF lenses, to help in buying decisions. Also, I have read elsewhere about some sort of "1.6x crop factor" with EF-S lenses -- what is that all about? 76.102.95.104 17:11, 22 October 2007 (UTC)
Removed the duplicate information concerning the mounting of the EF-S lens on to bodies that were not designed for it as its well covered in the previous paragraph. —Preceding unsigned comment added by 143.166.255.56 ( talk) 14:15, 24 March 2008 (UTC)
- It is not duplicate information. The first paragraph talks about how EF-S lenses will not work on full frame EF mount cameras. The second paragraph talks about how you might be able to get EF-S lenses to work on old APS-C cameras, like the D30 to 10D, and EOS X(lite). I reversed you edit. Nebrot ( talk) 01:58, 25 March 2008 (UTC)
Does anyone have technical drawings to accompany this article? I've looked around a bit but haven't found a good drawing anywhere. If anyone knows of a drawing, please add it to this article. neffk ( talk) 05:57, 10 April 2008 (UTC)
- Interesting idea. What exactly were you thinking the drawings would be of? Unfortunately, if there are any drawings out there of such nature, I doubt you could get proper license. It would have to be hand made by one of us. I have thought about making drawings of the EF/EF-S lens mount, as I have Auto CAD, but don't have the tools to make proper measurements. Any drawings I could make, would be "rough", and not accurate enough for encyclopedic standards, IMAO. But maybe something is better than nothing. Thoughts? Nebrot ( talk) 08:34, 10 April 2008 (UTC)
Are these lenses approximately image-space telecentric? It sounds like some might be. —Ben FrantzDale ( talk) 14:15, 11 May 2008 (UTC)
Do we really need one article for each EF-S lens? Since they're all currently stubs except 17-55mm, and since the stats could be summarised into an expanded table on this page, I'm of the opinion we could include any interesting stuff on this page. Thoughts? Jon ( talk) 06:23, 11 May 2010 (UTC)
It is written that it fits on APS-C and not on 35 mm full frame, but what about APS-H? -- 92.74.20.221 ( talk) 18:59, 13 August 2010 (UTC)
- AP-H cameras will not accept EF-S lenses without modification, as stated in the specifications of the 1D mkIV http://www.usa.canon.com/cusa/consumer/products/cameras/slr_cameras/eos_1d_mark_iv#Specifications 137.99.236.88 ( talk) 14:55, 31 May 2011 (UTC)
| This article has not yet been rated on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||
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"However, not all such lenses require the shorter back focus, and may feature the standard EF mount."
Any examples? I thought all EF-mount lens were designed for 35mm. (All EF-S lenses are designed for APS-C, of course.) There were a few EF lenses designed for APS film way back when, I believe, but not digital APS-C in particular.
--22:26, 3 December 2006 (UTC)
- AFAIK, Canon doesn't have any EF (non EF-S) lenses designed for a smaller image circle than 35mm. The kit lenses for the IX and the IX Lite were 22-55 and 24-85 full frame 35mm lenses. Other manufacturers like Sigma and Tamron have APS-C type lenses in regular EF mount, though. mvdhout 01:34, 10 December 2006 (UTC)
I would love to see a list of pros and cons compared to EF lenses, to help in buying decisions. Also, I have read elsewhere about some sort of "1.6x crop factor" with EF-S lenses -- what is that all about? 76.102.95.104 17:11, 22 October 2007 (UTC)
Removed the duplicate information concerning the mounting of the EF-S lens on to bodies that were not designed for it as its well covered in the previous paragraph. —Preceding unsigned comment added by 143.166.255.56 ( talk) 14:15, 24 March 2008 (UTC)
- It is not duplicate information. The first paragraph talks about how EF-S lenses will not work on full frame EF mount cameras. The second paragraph talks about how you might be able to get EF-S lenses to work on old APS-C cameras, like the D30 to 10D, and EOS X(lite). I reversed you edit. Nebrot ( talk) 01:58, 25 March 2008 (UTC)
Does anyone have technical drawings to accompany this article? I've looked around a bit but haven't found a good drawing anywhere. If anyone knows of a drawing, please add it to this article. neffk ( talk) 05:57, 10 April 2008 (UTC)
- Interesting idea. What exactly were you thinking the drawings would be of? Unfortunately, if there are any drawings out there of such nature, I doubt you could get proper license. It would have to be hand made by one of us. I have thought about making drawings of the EF/EF-S lens mount, as I have Auto CAD, but don't have the tools to make proper measurements. Any drawings I could make, would be "rough", and not accurate enough for encyclopedic standards, IMAO. But maybe something is better than nothing. Thoughts? Nebrot ( talk) 08:34, 10 April 2008 (UTC)
Are these lenses approximately image-space telecentric? It sounds like some might be. —Ben FrantzDale ( talk) 14:15, 11 May 2008 (UTC)
Do we really need one article for each EF-S lens? Since they're all currently stubs except 17-55mm, and since the stats could be summarised into an expanded table on this page, I'm of the opinion we could include any interesting stuff on this page. Thoughts? Jon ( talk) 06:23, 11 May 2010 (UTC)
It is written that it fits on APS-C and not on 35 mm full frame, but what about APS-H? -- 92.74.20.221 ( talk) 18:59, 13 August 2010 (UTC)
- AP-H cameras will not accept EF-S lenses without modification, as stated in the specifications of the 1D mkIV http://www.usa.canon.com/cusa/consumer/products/cameras/slr_cameras/eos_1d_mark_iv#Specifications 137.99.236.88 ( talk) 14:55, 31 May 2011 (UTC)