1785IS EFS to EF Mount Shown Here

http://www.pbase.com/f​stopjojo/efconv

This has been posted at my site for about 8 days now but the EF rear baffle/cover arrived today and I popped it right in (4th image). P-e-r-f-e-c-t fit and looks like a true EF lens now. The rear baffle, as explained in my 3rd image, is from the 24-85 USM, which is a perfect match. Thought some might be interested in this procedure.

That's pretty neat. Quick question though, do u think the lens (electronics) will work on the non-EFS and/or film camera body? It would be nice it can.

So what you are saying is that the EF-S 17-85 IS can be completely converted into an EF 17-85 IS for use on the D30/60/10D?

Does it work on the older models, electronic wise?

Not sure this would work on the 10-22mm it comes awefully close to the rear of the baffle IMO.

This looks neat though.

*Yes, it works on the 10D, etc.
*As for older models, that I cannot confirm.
*I am not aware of anyone trying it on the 10-22 as the physical tolerances are VERY tight.
*Yes, it's quite neat all right!

Joe, any photos taken with it yet?

Greg, do you mean photos taken to ensure it works? Or photos taken just in general? It works just as before but haven't really had a chance to take it out for any serious shots yet. I've been busy playing with the new 70300IS which is a cracker of a lens

fStopJojo wrote:
Greg, do you mean photos taken to ensure it works? Or photos taken just in general? It works just as before but haven't really had a chance to take it out for any serious shots yet. I've been busy playing with the new 70300IS which is a cracker of a lens

Uhh, have you taken any photos ever in general?

Ooh, I believe that the lens works, I'd just like to see the quality of them compared to how it is when regularly mounted.

grego wrote:
Uhh, have you taken any photos ever in general?

Ooh, I believe that the lens works, I'd just like to see the quality of them compared to how it is when regularly mounted.

I don't have any before/after (identical) captures to compare, but I don't notice any difference really. Nothing optically has been changed.

BTW, are you getting the 120-300EX? [a bit off topic]

That's cool if you don't really see any big differences. That might make the EF-S deal disappear, because I still love my 10D even though I probably will end up with a 20D next(as much as I like what the 1D offers-can't afford MKII-which would be the camera that meets all my demands)

Yeah, the Non DG version(even though that doesn't matter at all). I am pretty sure I should have one by the end of January.

Still a big buy for me, my biggest(even though its only a tad more expensive than the 70-200 IS), but might buy used. Being a college student is difficult when it comes to building up stuff. I'm hoping I make the right decision(with regards to photography).

Maybe it's obvious ... but why even bother? Don't you have a crop body?

Might as well bring up every possibility.

Because the EF-S mount won't physically fit a 10D, D60 or D30
But the modified one will...

Doesn't that really kill the warranty, or does that not matter?

I wondered about this conversion. If it works, I might just.. . . I have a 10D and a 20D in the mail with 18-55 lens. That is something very interesting.

SuzyView

So if it can be used on an Elan 7, does it work as a 17-85 or a 28-135. The mount change only allowing it to be mounted on EF bodies ?

It will fit the Elan7 but the image will be 17-85mm and the image will have a huge black ring around the outer 20% of the photo, so basically it won't work.

I did this with my Sigma before selling my Elan 7N.