Archived posting to the Leica Users Group, 2008/03/18

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Subject: [Leica] Canon DSLR R lens use
From: len-1 at (Leonard Taupier)
Date: Tue Mar 18 07:10:37 2008
References: <>


Be very careful with the 24mm Elmarit-R. It extends pretty far into  
the Canon body and may hit the mirror. The 20d may be OK but I know  
it does hit the mirror on a full frame 5D.


On Mar 18, 2008, at 9:12 AM, wrote:

> Michiel, Nathan, Mehrad, Steve, and Don,
> Thanks for the info, it is appreciated.  I did see the focus  
> confirmation adapters but all seem to come from Hong Kong.  I'm a  
> bit uneasy of going this route, and Paypal and I do not get along  
> very well.  If I could find a source here in the US, I would  
> certainly try one, as I do have a 24 Elmarit R I want to use on it.
> Cheers,
> Gene
> -------------- Original message ----------------------
> From: "Don Dory" <>
>> Gene,
>> Normally you will not have any exposure issues.  With some lenses  
>> at some
>> apertures you will encounter sub-optimal exposures.  The trick is  
>> to turn on
>> your histogram and check it frequently for the first few hundred  
>> exposures
>> to get a feel for how the combination is working for you.  For  
>> example, I
>> use a 85mm Helios lens on Canon's and wide open it overexposes by  
>> about one
>> stop, I don't have that issue with 50mm Nikkors or a 105 Nikkor.   
>> So, you
>> probably will not have any problems but check to make sure: Murphy  
>> has a
>> habit of intruding when you need a particular image to come out  
>> perfect.
>> Enjoy your new toy!
>> Don
>> On Tue, Mar 18, 2008 at 12:25 AM, <> wrote:
>>> Well, I made the plunge and got a Canon 20D used and ordered a R  
>>> adapter
>>> from Stephan Gandy, which should arrive tomorrow, Tuesday.  I  
>>> remember some
>>> discussion on exposure problems with some of the Canon Digitals  
>>> with R
>>> lenses.  Is there anything I need to set special on the 20D?  Or  
>>> just put in
>>> Aperture Priority and start shooting?  I checked the archives but  
>>> did not
>>> see anything.  This is a stop gap while I wait to see what if  
>>> anything shows
>>> up at Photokina in the form of a R10.  Also how big of a CF card  
>>> can be used
>>> with the 20D?
>>> Thanks for any help,
>>> Gene
>>> _______________________________________________
>>> Leica Users Group.
>>> See for more information
>> -- 
>> Don
>> _______________________________________________
>> Leica Users Group.
>> See for more information
> _______________________________________________
> Leica Users Group.
> See for more information

Replies: Reply from michiel.fokkema at (Michiel ([Leica] Canon DSLR R lens use)
In reply to: Message from grduprey at ( ([Leica] Canon DSLR R lens use)