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Author Topic: Using EF-S lens on FF body???  (Read 26687 times)

fotoray

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Using EF-S lens on FF body???
« on: May 26, 2011, 05:42:15 PM »
Can you use an EF-S lens on a FF body IF you use Liveview where the mirror is in lockup position?
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Using EF-S lens on FF body???
« on: May 26, 2011, 05:42:15 PM »

alipaulphotography

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Re: Using EF-S lens on FF body???
« Reply #1 on: May 26, 2011, 06:45:38 PM »
I'm pretty sure you can't even fit the lens to the body. But someone else will have to confirm that!

DJL329

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Re: Using EF-S lens on FF body???
« Reply #2 on: May 26, 2011, 07:12:27 PM »
Even if you could, you're still not going to fill up the a full-frame sensor, so why bother risking it?
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neuroanatomist

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Re: Using EF-S lens on FF body???
« Reply #3 on: May 26, 2011, 07:26:31 PM »
Can you use an EF-S lens on a FF body IF you use Liveview where the mirror is in lockup position?

How are you going to mount the EF-S lens?  What happens when you activate Live View, then remove an attached EF lens?  What happens when you activate Live View without a lens attached then attach a lens.  Try those steps, then tell us if you still think your idea will work...
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zerotiu

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Re: Using EF-S lens on FF body???
« Reply #4 on: May 27, 2011, 01:51:11 AM »
you can't and don't try it, because the mount will hit the mirror

fotoray

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Re: Using EF-S lens on FF body???
« Reply #5 on: May 27, 2011, 08:27:58 PM »
I'm convinced.
5D Mk III | 7D | 20D | EF-S 10-22 | EF-S 17-85 | EF 17-40 f/4L | EF 24-105 f/4L | EF 70-300 DO | EF 100-400 Mk II | EF 35 f1.4L II | EF-S 60 f2.8 macro | EF 100 f2.8L macro | 580EX II | RRS Series 2 tripod | plus many gadgets |

DarStone

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Re: Using EF-S lens on FF body???
« Reply #6 on: May 28, 2011, 01:53:49 PM »
Interesting concept, unfortunately an EF-S lens cannot be mounted on a FF or APS-H camera the EF mount of the camrea is different.

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Re: Using EF-S lens on FF body???
« Reply #6 on: May 28, 2011, 01:53:49 PM »

CR Backup Admin

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Re: Using EF-S lens on FF body???
« Reply #7 on: May 28, 2011, 05:05:37 PM »
Interesting concept, unfortunately an EF-S lens cannot be mounted on a FF or APS-H camera the EF mount of the camrea is different.

And yet, many photographers have found ways to do it.  I wouldn't fool with my expensive equipment that way, but it is not impossible at all.  The electrical interface is identical, just a physical obstruction on the lens that, in some cases can just be popped off.

Here is how its done for the 10-22mm L
http://www.flickr.com/groups/canondslr/discuss/72157604422834954/

http://www.flickr.com/groups/canondslr/discuss/72157604422834954/

funkboy

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Re: Using EF-S lens on FF body???
« Reply #8 on: May 29, 2011, 11:10:51 AM »
There was a similar thread like this on the Macrumors photo forums about a year ago:

http://forums.macrumors.com/showthread.php?p=10132263#post10132263

Many 3rd party APS-c specific lenses are still normal EF mounts (not EF-s) so the restrictions are optical, not mechanical.  My Tokina 11-16 f/2.8 works great as a 16mm FF lens, on both digital & film.  On a 1DIIn it vignetted too much below about 14mm but was acceptable at 14 & great at 15 & 16.

I also cut the plastic extension off an 18-55 kit lens with a hacksaw a couple years ago so it would work on my brother's 10D (I got the lens as a gift for helping out a friend).  Never bothered trying that one on an FF body (don't really see the point as you'd probably have yourself a 35-55 f/4.5-5.6) but the remaining plastic bits that clear the mirror box on the 10D probably wouldn't clear the mirror of an FF camera.

MossTech

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Re: Using EF-S lens on FF body???
« Reply #9 on: May 29, 2011, 02:11:49 PM »
Not FF, but I have mounted the EF-S lenses on my 1D IV using a 25mm extension tube. Just as an exercise!

Kim

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Re: Using EF-S lens on FF body???
« Reply #10 on: May 29, 2011, 05:44:55 PM »
I mounted my EF-S 10-22mm on an old EOS 1n.

It is only usable from ~17-22mm with no vignette.

It does not work at 10mm as the mirror will hit the optical element of the lens. At 12mm it works but it gives a black circle around the image.

unexposure

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Re: Using EF-S lens on FF body???
« Reply #11 on: May 30, 2011, 04:46:11 PM »
you can use ur ef-s mount lenses on 1D-Models, there's just a "pin problem" which is in your way. Using it on FF might indeed result in the mirror touching it (not only in live-view).

adamdoesmovies

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Re: Using EF-S lens on FF body???
« Reply #12 on: May 30, 2011, 06:36:04 PM »
Some lenses seem to work just fine on full-frame... I just tried my Tokina 11-16 and it fits my old film cameras, and only vignettes at the wide end (but looks kinda like a fisheye, so it's kinda cool). My sigma 17-70 is similar, but the edge quality is pretty crappy.  Some lenses have a rear element that sticks out but if you do your little live view trick with mirror lockup, you can at least get some interesting results.  In some instances, vignetting looks cool.

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Re: Using EF-S lens on FF body???
« Reply #12 on: May 30, 2011, 06:36:04 PM »

Blaze

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Re: Using EF-S lens on FF body???
« Reply #13 on: May 31, 2011, 12:23:03 AM »
To get around the mechanical issue, couldn't you just use a short extension tube designed to accommodate both EF and EF-S lenses? You'd lose infinity focus, but I would think it would work other than that.

PHYSICA

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Re: Using EF-S lens on FF body???
« Reply #14 on: May 31, 2011, 01:34:16 AM »
Someone modity the mount of a cheap EF-S 18-55mm f3.5-5.6 IS , you may refer to the link below

http://blog.dcview.com/article.php?a=U2RQMlAyUWA%3D
** This is a taiwanese homepage , you need a translator if you didn't know chinese....

Due to the circle of illumination limitation , the 18-55 IS lense is limited to be a 24-55 IS Lens.

If you did nothing, the EF-S Lens does not fit to the FF body, except the DC / DX Lense produced by other party.

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Re: Using EF-S lens on FF body???
« Reply #14 on: May 31, 2011, 01:34:16 AM »