EOS adapter... glass element?

There's no need for a glass element, so I rather doubt it! You realise you'll lose aperture control (i.e. the lens will always shoot wide open)?
 
I know that FD-to-EOS adapters have a glass optical element in them to make the older lenses work modern Canons, so it's possible that EOS-to-m43 adapters have a glass element as well. But I've never seriously investigated the issue because glass element or no glass element, the fact that you can't control aperture on m43-adapted EOS lenses unless you attach the lens to an EOS body, set aperture, then take it off and put it back on the m43 body is sort of a non-starter, unless you want to shoot the lens wide open all the time.


Martin Oller said:
Simple question. Does these:
http://shop.ebay.com/?_from=R40&_trksid=m570&_nkw=gh1+eos+adapter

have a glass element in them? Hard to see from the pictures. Thanks.

edit: oops, wrong forum
Click to expand...
 
Yeah well, probably not bothering with the Canon glass, fortunatly just got 2... rest is lovely manual primes... sticking to the M42 adapters for starters :)
 
No glass element needed in EOS to m43. I have the Fotodiox one and it works fine, except that you can't control aperture.
 
shaveblog said:
I know that FD-to-EOS adapters have a glass optical element in them to make the older lenses work modern Canons, so it's possible that EOS-to-m43 adapters have a glass element as well.
Click to expand...

The FD-EOS adapters need a glass element because the register distance is shorter for FD lenses than for EOS lenses (i.e. you can't physically mount the lens close enough to the body for infinity focus). That's not true when using any SLR or rangefinder lenses on micro 4/3, so none of the adpters need the glass element.
 
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