Saw off rubber ring in EF-S?

panzerpunk · 7th September 2006

Does it really work? Will you be able to mount an EF-S on a FF camera and expect it to operate normally? And for that matter, will you be able to use it on a 1.6x body again?

Anyone has *TRIED* it before? (not theoretical answers pls...)

JediForce4ever · 7th September 2006

operate normally as in?no vignetting?

fWord · 7th September 2006

Not long ago I came across this link, and it's good, though I wish it were more detailed.

http://www.pbase.com/lightrules/efconv

Sometime down the track, if I still have the 17-85mm, I might consider doing this. But therein comes the added challenge of finding the EF baffle.

With this done, I assume the lens will continue to work even on an EF-S mount body (eg. 350D). This is because those bodies can also use EF lenses. But you can probably expect quite strong vignetting with these lenses.

archlover · 8th September 2006

yup... got mr. Harlim in indonesia who use 18-55 with 5D...
no vignetting...
i'll try to find sample of his photo...

+evenstar · 8th September 2006

no vignetting at certain focal length and above...at the widest end there'll be vignetting i guess

panzerpunk · 8th September 2006

Looking more at putting a 10-22 on a 5D or a 17-55 on a 5D... Any solid results with which range to which range does vignetting occurs?

denniskee · 9th September 2006

a person who did this mod told me at the wide end, the rear element will protrude into the camera, so mirror of a d60 will slap into it. not sure about FF.

Stoned · 9th September 2006

Originally Posted by denniskee

a person who did this mod told me at the wide end, the rear element will protrude into the camera, so mirror of a d60 will slap into it. not sure about FF.

The mirror of a d60 is a 1.6x mirror, there's no way it would hit the rear element of the lens. The kit lens works ok when modified, based on some people i know who have done it. Take a look at the back of the lens, if the glass protrudes into your body(i've never looked at any ef-s lens besides the kit lens), then it definitely will not work because of the larger mirrors in FF and 1.3x cameras. The whole purpose of removing the rubber ring is so that you won't damage your camera's mirror.

zcf · 9th September 2006

I tries saw off the back part kit lens 18-55mm and use it on film slr 3000V, it works from 22mm onward, so use to use it as a cheap wide angle lens.

7th September 2006	#1
panzerpunk Member Join Date: Jun 2006 Location: Singapore Posts: 987	Saw off rubber ring in EF-S? Does it really work? Will you be able to mount an EF-S on a FF camera and expect it to operate normally? And for that matter, will you be able to use it on a 1.6x body again? Anyone has TRIED it before? (not theoretical answers pls...)

7th September 2006	#2
JediForce4ever Senior Member Join Date: Aug 2005 Location: Singapore, CanonGraphers.org Posts: 3,163	Re: Saw off rubber ring in EF-S? operate normally as in?no vignetting?

7th September 2006	#3
fWord Senior Member Join Date: Jun 2005 Location: Melbourne, Australia Posts: 3,347	Re: Saw off rubber ring in EF-S? Not long ago I came across this link, and it's good, though I wish it were more detailed. http://www.pbase.com/lightrules/efconv Sometime down the track, if I still have the 17-85mm, I might consider doing this. But therein comes the added challenge of finding the EF baffle. With this done, I assume the lens will continue to work even on an EF-S mount body (eg. 350D). This is because those bodies can also use EF lenses. But you can probably expect quite strong vignetting with these lenses. __________________ LightWorks Portfolio Night Photography Last edited by fWord; 7th September 2006 at 08:46 PM.

8th September 2006	#4
archlover Member Join Date: Nov 2005 Posts: 1,246	Re: Saw off rubber ring in EF-S? yup... got mr. Harlim in indonesia who use 18-55 with 5D... no vignetting... i'll try to find sample of his photo... __________________ http://wellingtonkuswanto.com wellington kuswanto page

8th September 2006	#5
+evenstar Senior Member Join Date: Jan 2004 Location: Singapore Posts: 5,451	Re: Saw off rubber ring in EF-S? no vignetting at certain focal length and above...at the widest end there'll be vignetting i guess __________________ the SEARCH FUNCTION is there for a reason. USE IT!

8th September 2006	#6
panzerpunk Member Join Date: Jun 2006 Location: Singapore Posts: 987	Re: Saw off rubber ring in EF-S? Looking more at putting a 10-22 on a 5D or a 17-55 on a 5D... Any solid results with which range to which range does vignetting occurs?

9th September 2006	#7
denniskee Senior Member Join Date: Oct 2003 Location: bukit batok Posts: 4,211	Re: Saw off rubber ring in EF-S? a person who did this mod told me at the wide end, the rear element will protrude into the camera, so mirror of a d60 will slap into it. not sure about FF. __________________ photography makes one sees things from all angles.

9th September 2006	#9
zcf Senior Member Join Date: Apr 2005 Location: 270 degree of Singapore Posts: 6,684	Re: Saw off rubber ring in EF-S? I tries saw off the back part kit lens 18-55mm and use it on film slr 3000V, it works from 22mm onward, so use to use it as a cheap wide angle lens. __________________ Sony Alpha 700 hobbyist