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

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Subject: [Leica] Canon DSLR R lens use
From: grduprey at (
Date: Tue Mar 18 06:12:57 2008

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.


-------------- 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

Replies: Reply from len-1 at (Leonard Taupier) ([Leica] Canon DSLR R lens use)