Archived posting to the Leica Users Group, 2004/01/25

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Subject: Re: [Leica] Re: R lenses on Canon bodies
From: John Collier <jbcollier@shaw.ca>
Date: Sun, 25 Jan 2004 20:53:11 -0700
References: <97E8708C-4F88-11D8-8352-000393778554@netvigator.com> <0C600344-4F91-11D8-AEC2-000A958F513A@jphotog.com> <3C2F0096-4FA4-11D8-B824-0050E42E6E0B@shaw.ca> <26F7F6EE-4FAF-11D8-AEC2-000A958F513A@jphotog.com>

It is not quite as simple as that. Some EOS cameras do not like getting 
absolutely no data from the lens while other EOS cameras don't mind at 
all and have software work arounds programmed in. It all depends on the 
software feature set of the camera not the potential capabilities of 
the sensor.

John Collier

On Jan 25, 2004, at 8:24 PM, Eric Welch wrote:

> Whatever caused it, it wasn't the sensor on the camera. So it must be 
> the adapter. That lens is certainly not at fault.
>
> Eric Welch
> Carlsbad, CA
> http://www.jphotog.com
>
> “Every normal man must be tempted at times to spit on his hands, hoist 
> the black flag, and begin slitting throats.” H. L. Mencken
> On Jan 25, 2004, at 6:06 PM, John Collier wrote:
>
>> Hi Eric,
>>
>> Is the fact that his exposures were uneven with an 28 Elmarit untrue? 
>> It seems to me he has film to show there were problems and that 
>> should be sufficient evidence. While all three cameras may use the 
>> same sensor, there will be implementation/software differences. 
>> Certainly none of the cameras were design to be used with an adapter 
>> and R lenses. The different feature sets and software of the three 
>> cameras may well produce different results with this unintended use.
>>
>> John Collier
>>
>> On Jan 25, 2004, at 4:49 PM, Eric Welch wrote:
>>
>>> Not true. The D300 doesn't have all the spot reading and matrix 
>>> reading (it does cost a lot less after all) but it can get every bit 
>>> as accurate exposures as the others by anyone who is competent with 
>>> manual metering.
>>>
>>> On Jan 25, 2004, at 2:48 PM, Howard Cummer wrote:
>>>
>>>> I have used a 28 Elmarit on a Canon 300D and the exposure was 
>>>> uneven so I think that you may need more input from other users as 
>>>> to whether the 300D is absolutely suitable. For the Canon D60 and 
>>>> 10D the exposure variability does not exist as the cameras can be 
>>>> set manually while on the 300D mores settings are automatically 
>>>> controlled by the camera.
>>
>> --
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>>
>
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Replies: Reply from Eric Welch <eric@jphotog.com> (Re: [Leica] Re: R lenses on Canon bodies)
In reply to: Message from Howard Cummer <cummer@netvigator.com> ([Leica] Re: R lenses on Canon bodies)
Message from Eric Welch <eric@jphotog.com> (Re: [Leica] Re: R lenses on Canon bodies)
Message from John Collier <jbcollier@shaw.ca> (Re: [Leica] Re: R lenses on Canon bodies)
Message from Eric Welch <eric@jphotog.com> (Re: [Leica] Re: R lenses on Canon bodies)