Archived posting to the Leica Users Group, 2010/11/18

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Canon non-linear metering
From: tgray at 125px.com (Tim Gray)
Date: Thu, 18 Nov 2010 14:00:33 -0500
References: <mailman.647.1290096232.88697.lug@leica-users.org> <SNT121-DS59D242ADCC7509A0EA619D4390@phx.gbl> <20101118173607.GG60960@selenium.125px.com> <38068763-95E4-4D2D-B48B-FA6674C6CD39@mac.com> <20101118181522.GH60960@selenium.125px.com> <5304F183-95D8-4EEF-AF3E-A67354F2B17C@mac.com>

On Nov 18, 2010 at 12:50 PM -0600, George Lottermoser wrote:
> could be.
> Certainly the Canon electronic, mechanical, meter and computer linkages 
> would qualify as "more complicated."
> Yet the fact that the R lens does not connect to any of that remains 
> simple 
> - no connectivity to the complex camera system;
> the camera has no way of knowing the aperture;
> and without that knowledge cannot properly compute.

With that clarification, ok :)  Certainly sounds like there is some aperture 
related and possibly focal length related compensation going on in the Canon 
metering system that non-electronic lenses don't get to take advantage of.


Replies: Reply from imagist3 at mac.com (George Lottermoser) ([Leica] Canon non-linear metering)
In reply to: Message from leicar at q.com (Aram Langhans) ([Leica] Canon non-linear metering)
Message from tgray at 125px.com (Tim Gray) ([Leica] Canon non-linear metering)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] Canon non-linear metering)
Message from tgray at 125px.com (Tim Gray) ([Leica] Canon non-linear metering)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] Canon non-linear metering)