Re: [APML] (no subject)

[Ray Butler <ray.butler@nuigalway.ie>]

Hi Dan,

As an EOS (film) camera owner I am aware of these adapters, but they 
normally need to have a mild built-in teleconverter (about 1.26x) to get 
infinity focus. If you only got a plain piece-of-metal ring, it can't 
reach infinity. If there is glass in your adapter and it still doesn't 
reach infinity, something is wrong and I'd ask for a refund. There are 
also physical limitations with the rear elements on some FD lenses, 
which mean that they cannot be used with any such adaptor.

As for mechanically hacking the lens, you might be much better off 
asking this question in another forum dedicated to Canon stuff or photo 
gear in general. E.g here are threads from photo.net:

http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=005ud5
http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=005Rat

Cheers,
Ray "who is keenly aware that 'better ask your question somewhere else' 
responses can be irritating to the questioner" Butler.


Dan Kaestner wrote:
> Hi Group,
> 
>  
> 
> I have a question if I may. I don’t want to be off topic but I figured 
> this would be the place to ask?
> 
> I have a Canon 100/200mm f/5.6 Lens.
> 
> I purchased the Hama AF/FD EOS adaptor so I could use this lens with my 20D.
> 
> With this adaptor the lens doesn’t focus well to infinity, seems to be 
> good out to about four to five hundred yards!
> 
> So, the question is, is there a mechanical way to reset the infinity of 
> this lens?
> 
>  
> 
> Any help would be much appreciated
> 
> Dan Kaestner
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
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-- 
Dr. Ray Butler (ray.butler@nuigalway.ie || ray@physics.nuigalway.ie)
Lecturer, Dept. of Physics || Computational Astrophysics Laboratory
National University of Ireland, Galway, University Road, Galway, Ireland.
Tel: +353-91-524411 ext. 3788   FAX: +353-91-525700


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