Canon EF-S lens with extension tube

02/10/2009 12:58:43 PM · #1

Is it possible to use a Canon EF-S lens on a non-EF-S camera body if you use an extension tube?

For example, would a Canon EF-S 10-22mm lens work on a Canon 5D body with a Canon EF 12-II extension tube?

Has anyone tried this?

scalvert

Canon EOS-5D Mark III

02/10/2009 02:13:51 PM · #2

Even if technically possible (the focal plane is at a different depth), it would compound the very problem that keeps you from using a "digital-only" lens on a full frame camera in the first place. The image circle from a 10-22 lens does not fill a full 35mm frame (it would yield a severe vignette). An extension tube would have the effect of increasing an already-horrible vignette, cutting the light by a stop or two, and shortening the focal plane. You'd probably get a small, dimmer image with really shallow DOF cropped to maybe half of the frame with black space all around it. In other words, yuck.

Beetle

02/10/2009 03:03:21 PM · #3

A sales person at Fry's tried to tell me there was a converter/adapter that would make it work. He was SURE of it.

Just to give him the benefit of the doubt, I did try to find such a thing online, but (surprise, surprise) had no luck finding one.

02/10/2009 03:23:44 PM · #4

I realize it wouldn't be ideal. I'm just wondering if it would work at all. IOW, I'm wondering if a non-EF-S camera and an EF-S lens be able to communicate and create an image--even if it's a really bad image.

rocket

Samsung Galaxy S24, S24+, S24 Ultra

02/10/2009 03:44:18 PM · #5

I read somewhere with a guide how to do it , that you can take the back off of an EFS (so it won't hit the mirror) and it will work on an EF Body. It also warned at your own risk try this
I will try to find a link and post it.

Cheers

Bear_Music

Sony 24-70mm f/4 Vario-Tessar T* FE OSS

02/10/2009 03:44:36 PM · #6

There's nothing to keep you from mounting EF-S on an extension tube, at least not on one with no glass in it. And for sure you can mount that tube on the FF body. Whether they will *communicate* with each other I don't know.

R.

rocket

Samsung Galaxy S24, S24+, S24 Ultra

02/10/2009 03:48:06 PM · #7

This one is about an EFS on a 10D body.

//www.bobatkins.com/photography/tutorials/efs-10d.html

Cheers

Bear_Music

Sony 24-70mm f/4 Vario-Tessar T* FE OSS

02/10/2009 03:54:39 PM · #8

Originally posted by rocket:

This one is about an EFS on a 10D body.

//www.bobatkins.com/photography/tutorials/efs-10d.html

Cheers

parsed link

scalvert

Canon EOS-5D Mark III

02/10/2009 04:08:11 PM · #9

Originally posted by Mick:

I'm wondering if a non-EF-S camera and an EF-S lens be able to communicate and create an image--even if it's a really bad image.

I just happen to have a 5D, 10-22 lens and extension tube. When I get a chance, I'll let you know.

Beetle

02/10/2009 04:13:51 PM · #10

I just tried it. I can't get the extension tube onto the 10-22, but maybe that's just me :-(

02/10/2009 07:24:19 PM · #11

Originally posted by scalvert:

Originally posted by Mick:
I'm wondering if a non-EF-S camera and an EF-S lens be able to communicate and create an image--even if it's a really bad image.

I just happen to have a 5D, 10-22 lens and extension tube. When I get a chance, I'll let you know.

Please, don't do it unless you're sure it's not going to damage your gear.

Samsung Galaxy S24, S24+, S24 Ultra

02/10/2009 07:28:15 PM · #12

Originally posted by Beetle:

I just tried it. I can't get the extension tube onto the 10-22, but maybe that's just me :-(

Some extension tubes don't work with EF-S lenses. I read somewhere that the Canon EF 12-II works with EF-S lenses, but the original doesn't.

Bear_Music

Sony 24-70mm f/4 Vario-Tessar T* FE OSS

02/10/2009 09:45:22 PM · #13

Originally posted by Mick:

Originally posted by Beetle:
I just tried it. I can't get the extension tube onto the 10-22, but maybe that's just me :-(

Some extension tubes don't work with EF-S lenses. I read somewhere that the Canon EF 12-II works with EF-S lenses, but the original doesn't.

Right, of course. The mounts are different from the standard EF mount. An EF-S camera can mount either flavor lens, but an EF camera can only mount an EF lens. Same goes for the tubes. I'd assumed that was understood by everyone, LOL. Come to think of it, I guess the real question is whether there's a tube with EF-S female and EF male on the respective ends; 'cuz if an EF-S tube has also an EF-S to-camera flange, then it STILL won't work on the FF camera, you're no better off.

R.

scalvert

Canon EOS-5D Mark III