I am thinking of buying one of these to use via an adaptor on my G1. Most of the examples on ebay seem to be Canon fit - does anyone know if this lens can be operated (aperture and focus) purely manually in the Canon version?
It has been suggested to me that it may not be possible to alter the aperture.
I am thinking of buying one of these to use via an adaptor on my G1. Most of the examples on ebay seem to be Canon fit - does anyone know if this lens can be operated (aperture and focus) purely manually in the Canon version?
It has been suggested to me that it may not be possible to alter the aperture.
There should be no reason why the Canon FD version won't - just avoid the EF and EF-S lenses.
These lenses are notorious for fogging of the internal elements, so make sure you confirm the lens is truly clean before you buy. From what I've read on the web, it's the ones with 72mm filter threads that are prone (which may be all the manual focus ones for all I know). You obviously know to only get the APO version.
By coincidence, I've just been taking apart one of these with a CY mount that belongs to my uncle. Despite being in otherwise pristine condition, there was heavy fogging on the front lens group of the internal focusing group. This would appear to be an oily deposit from the lubricant used on the focusing helicoid. Having finally get to the dirty group, I've cleaned most of it off, but its a two element group and I need to separate them to clean between them. i don't have the correct tool for this at the moment.
I am not looking forward to putting it back together. It will be a major challenge not to get it full of dust since all the (large) front elements have to come out.
Once I've got it cleaned and reassembled, I will be testing it on my E3. It's a very compact lens for 400mm so I'm hoping it will work well.
@ Mike,
Did you try it? Was it any good? I'm thinking of trying one too.
@ Andy,
Why no EF, EF-S mounts? The one I'm looking at is in near mint condition, selling for $35 and is an EF mount. Will this not work with M43 bodies plus adaptor - like the Panny GH1, etc.?
Last edited by Tesselator; 23rd May 2010 at 02:12 PM.
Reason: To see if my avatar would display.
Why no EF, EF-S mounts? The one I'm looking at is in near mint condition, selling for $35 and is an EF mount. Will this not work with M43 bodies plus adaptor - like the Panny GH1, etc.?
EF and EF-S lenses does not have aperture ring (as far as I am aware of) and aperture (and maybe even focus) is operated by electronic (just as Oly lenses) .. so you would need a really clever adaptor, or you wont be able to set/use aperture and focusing ...
@ Mike,
Did you try it? Was it any good? I'm thinking of trying one too.
No, I decided against. I'm using a borrowed 500mm mirror Tamron adaptall on the rare occasions I need such a long lens. Generally I'm managing with the kit 45-200mm.
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