Archived posting to the Leica Users Group, 2020/01/29

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Subject: [Leica] Leica M Mount lens for Canon EF mount camera
From: leica_r8 at (Aram)
Date: Wed, 29 Jan 2020 18:14:07 +0000
References: <> <>

I used my R lenses on Canon many moons ago because it was the only game 
in town when I wanted to go digital.? The exposure was a nightmare.? As 
you stopped down, the camera would undercompensate and images got more 
and more underexposed the more you stopped down.? This was using 
aperture priority.? Then someone came out with a way of replacing the 
rear lens mount with a Nikon F mount, so I switched to Nikon and all was 
right with the world again. And it got better performing sensors to boot.

Of course, a lot has happened since then and maybe a more modern Canon 
will meter fine with a totally manual lens.? But there is the issue of 
lens to sensor distance difference with M and Canon that would mean you 
can never focus to infinity with an M lens, so who cares about the 
metering issues.


On 1/27/2020 1:29 PM, Howard Cummer wrote:
> I confirm Philippe?s recollection. I used my Leica R lenses on a Canon 
> body with an adapter.
> This was many moons ago. And I recall that as you closed the lens down the 
> exposure
> became less and less accurate.
> Howard
> Date: Sun, 26 Jan 2020 20:33:53 +0100
> From: Philippe <photo.philippe.amard at 
> <mailto:photo.philippe.amard at>>
> To: Leica Users Group <lug at <mailto:lug at 
> Subject: Re: [Leica] Leica M mount lens for Canon EF mount camera
>       bodies?
> I don?t know much about this but my recollection is that Canon have 
> exposure issues when using ? legacy ? lenses.
> Bewar and double-check before buying any adaptor that might eventually 
> prove useless.
> Amities
> Philippe

Replies: Reply from skalte at (Susan Ryan) ([Leica] Leica M Mount lens for Canon EF mount camera)
In reply to: Message from hcummer at (Howard Cummer) ([Leica] Leica M Mount lens for Canon EF mount camera)