Hacking the EF-S 60 Macro: Someone had to do it

Wow! Just Wow!

Gutsy, Lightstream. Maybe you could use mirror lockup before you mount the lens. Does the rear element of the lens move when you focus?

You could always do the custom "mirror shaving" trick that Guy Mancuso did to his 5D over on Fred Miranda last year (before he switched to Leica).

Anyway, I'm not planning this approach on my 5D.

Tom W wrote in post #2100986
Wow! Just Wow!

Gutsy, Lightstream. Maybe you could use mirror lockup before you mount the lens. Does the rear element of the lens move when you focus?

You could always do the custom "mirror shaving" trick that Guy Mancuso did to his 5D over on Fred Miranda last year (before he switched to Leica).

Anyway, I'm not planning this approach on my 5D.

Actually, it mounts just fine. It's just when the mirror moves (after taking a shot for example) it will hit the lens. So I could MLU it, mount it, and still get hit on the way out (something about door hitting rear on the way out comes to mind.. :mrgreen

Mirror shaving - now THAT is cojones of steel and magnesium alloy. I am a mere mortal, by the time I had to do that I'd switch system too (I know he didn't change just because of that though!)

And.....


Part 2, the Sequel: Hacking the 17-85 IS USM: http://lights.lightref​ineries.org/?page_id=1​55


Ever seen what it looks like on a 5D and 1D? No kidding. Pics are in the article.


The guts part is actually in mounting and firing them on a full frame camera with full sized mirror. For 10D owners seeking an easy upgrade, this stuff is a snap, and SHOULD be minimal risk (however neither I, nor Light Refineries, nor POTN or the cats and ducks of people who post here will take responsibility should YOU decide to use this information and screw something up)

Lightstream wrote in post #2101032
Actually, it mounts just fine. It's just when the mirror moves (after taking a shot for example) it will hit the lens. So I could MLU it, mount it, and still get hit on the way out (something about door hitting rear on the way out comes to mind.. :mrgreen

Yes, on the one hand, you'd get the shot. On the other hand, I'd hate to be the one unmounting the lens with the mirror resting on the rear element.

Mirror shaving - now THAT is cojones of steel and magnesium alloy. I am a mere mortal, by the time I had to do that I'd switch system too (I know he didn't change just because of that though!)

Yes, he did it so that he could mount his adapted exotic glass to his 5D. I believe that he single-handedly caused a doubling of the retail & used price of the Contax/Zeiss 21 mm f/2.8 lens.

And.....


Part 2, the Sequel: Hacking the 17-85 IS USM: http://lights.lightref​ineries.org/?page_id=1​55


Ever seen what it looks like on a 5D and 1D? No kidding. Pics are in the article.


The guts part is actually in mounting and firing them on a full frame camera with full sized mirror. For 10D owners seeking an easy upgrade, this stuff is a snap, and SHOULD be minimal risk (however neither I, nor Light Refineries, nor POTN or the cats and ducks of people who post here will take responsibility should YOU decide to use this information and screw something up)

I have both a 17-85 and a 5D. I will not be trying this.

Tom W wrote in post #2101093
Yes, on the one hand, you'd get the shot. On the other hand, I'd hate to be the one unmounting the lens with the mirror resting on the rear element.

Yes, he did it so that he could mount his adapted exotic glass to his 5D. I believe that he single-handedly caused a doubling of the retail & used price of the Contax/Zeiss 21 mm f/2.8 lens.

I have both a 17-85 and a 5D. I will not be trying this.

Yeah.. if the shot is so crucial that we would risk sacrificing a 60 macro and a 5D, I would simply put in an overnight order at B&H for the 180/3.5L macro AND be able to get the shot without risking any gear


Now that is a SERIOUS hacker. I have seen the Zeiss on ebay while trawling for a nice Zeiss 50/1.7 (oi.. I do not ask for much, I do not ask for 21/2.8's ), and man, to think of the hacking that it would take.

As for the 17-85 on the 5D...I would describe it as "not exceptionally useful even though it is technically possible" you've seen the vignetting, it is pretty fierce, and stopping down obviously does not fix it since there just isn't enough glass to begin with in the first place.

AdamJL wrote in post #2100483
Apparently not:

http://www.ephotozine.​com …estdetail.cfm?t​est_id=362

The lens is designated as a DC, meaning that it's designed exclusively for dSLR cameras with a crop factor of 1.5x or greater. However, we did try it on a Canon 1D, which has a crop factor of 1.3x and found that, without filters, it could be used from 11mm upwards without vignetting.

It depends on the f-stop. I mean near wide open, it wouldn't work near 12mm.

Not even close to wide open. That's why they can get away with it more.