Using EF-S lens on FF body???

[fotoray]

Can you use an EF-S lens on a FF body IF you use Liveview where the mirror is in lockup position?

 

[alipaulphotography]

I'm pretty sure you can't even fit the lens to the body. But someone else will have to confirm that!

 

[DJL329]

Even if you could, you're still not going to fill up the a full-frame sensor, so why bother risking it?

 

[Loswr]

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...

 

[zerotiu]

you can't and don't try it, because the mount will hit the mirror

 

[fotoray]

I'm convinced.

 

[DarStone]

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.

 

[Admin US West]

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]

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]

Not FF, but I have mounted the EF-S lenses on my 1D IV using a 25mm extension tube. Just as an exercise!

 

[Kim]

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]

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]

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.

 

[Blaze]

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]

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.

 

[puqq]

I have used Sigma 10-20mm on film EOS with a reasonable success. As far as I remember, the image circle was large enough to cover the entire frame around 14mm (which is still impressively wide).

A while ago I have seen a forum post by a guy who had his Voigtlander 15mm rangefinder lens mounted on 5d Mk II during Live View exposure. The mirror stays above the protruding part of the lens and does not move, hence you do not risk causing any harm to your camera (maybe, a little bit more dust).

 

[Mt Spokane Photography]

A while ago I have seen a forum post by a guy who had his Voigtlander 15mm rangefinder lens mounted on 5d Mk II during Live View exposure. The mirror stays above the protruding part of the lens and does not move, hence you do not risk causing any harm to your camera (maybe, a little bit more dust).

The camera can drop the mirror unannounced for any number of reasons while in liveview, timing out, overheating, low battery, autofocus, etc. I'd think the guy was pretty foolish to believe that the mirror would stay up.

 

[ions]

The Tokina 11-16 is usable on fullframe, pretty much a prime though. If interested there's a decent amount of info on using the Tokina in that way to be found on flckrgoogle.

 

[dr croubie]

This may be my interpretation only (so don't wreck your camera trying, please), only Canon-brand EF-S lenses protrude deeper into the body than EF lenses.
3rd-party brands have a smaller image circle, definitely, but they don't protrude any deeper than an EF lens?

When you think about it, only canon have the dedicated shorter-mount, no other camera does. If you build a lens for a Nikon, Canon, Pentax, Olympus body, and sell it with different mounts and electrical contacts only, you make the lens fittable to the longest mount (generally Nikon F) and don't change the optical formula for the other brands. Even Nikon DX lenses fit FX bodies (i think) without breaking a FF mirror.

So I would not be surprised if any 3rd-party aps-c only lens fits a 5d/1d/s (as long as it's not a canon-specific non-canon-brand lens).

But i would still be very careful, mirror-lockup/liveview can turn itself off at any time, as noted (i always forget to change the time-out on my camera when manual-focussing with liveview, until the screen goes black and mirror flaps down, then i remember)

 

[puqq]

A while ago I have seen a forum post by a guy who had his Voigtlander 15mm rangefinder lens mounted on 5d Mk II during Live View exposure. The mirror stays above the protruding part of the lens and does not move, hence you do not risk causing any harm to your camera (maybe, a little bit more dust).

The camera can drop the mirror unannounced for any number of reasons while in liveview, timing out, overheating, low battery, autofocus, etc. I'd think the guy was pretty foolish to believe that the mirror would stay up.

I do not think this would be a serious issue- the mirror goes down without much force. Basically, the camera just throw Error 99, and would return to normal operation after lens removal and restart. I've had my Takumar 50mm 1.4 hitting 5D MkII mirror for many times without any further problems- notably, mirror goes up with much more force.