Archived posting to the Leica Users Group, 2001/05/07

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Subject: Re: [Leica] 21mm SA - metering with M6TTL
From: Guy Bennett <gbennett@lainet.com>
Date: Mon, 7 May 2001 08:11:46 -0700
References: <00df01c0d6d3$d807b080$584e69d5@oemcomputer> <3AF66A32.34568381@ubi.edu>

>Lucien,
>
>thanks for the information.  Being of faint heart, perhaps I will either a)
>get the SA and use a hand-held meter or b) save up for a more modern lens!
>
>Regards
>
>Mark


Or pick up both the lens *and* the M2, then you'll be cooking with gas!

Guy


>> Mark,
>>
>> In November 1988,  Jeremy Kime asked somebody to modify
>> his Super-Angulon 21/3,4 in the way described on the
>> following website:
>>
>> <http://reality.sgi.com/jessen_esd/angulon_mod.html> (closed today)
>>
>> > Modifying the Leica Super-Angulon f3.4 :
>>
>> > TTL metering is possible.
>> > Not for the Faint-Hearted.
>>
>> > The f3.4 Super Angulon can be made to work with the light meter on the
>M6 body.
>> > This process involves "machining" the rear collar of the lens
>> > (though it can be done with simple tools, outside of a machine shop).
>>
>> > 1.It is assumed that you are ready to dismantle and modify your lens.
>> > 2.The meter will read 1/3 stop under, which is compensated for by
>advancing
>> > the film speed dial by one notch.
>> > 3.The lens should be focused to close range in order to accurately
>meter.
>> > Close-focusing is needed to nudge the rear glass out of the way of the
>> > metering eye, and can be quickly done and then un-done while shooting.
>> > (However, on an M6 with the spot size reduced for tighter metering
>pattern,
>> > this close-focusing has been found to be unnecessary.)
>>
>> After modification, Jeremy Kime wrote:
>>
>> > Got the lens back today, it meters.
>> > I think the suggestion that it would only be a 1/3 of a stop is
>generous, so
>> > far it seems to be about a stop, haven't put any film through it yet but
>if
>> > I can end up relying on it being a stop then thats a nice round number
>to
>> > deal with and still cheaper than getting that new Elmarit-M ASPH.
>> > I'll try and test some different apertures on the metering tomorrow.

Replies: Reply from "Mark Pope" <mark.teampope@ntlworld.com> (Re: [Leica] 21mm SA - metering with M6TTL)
In reply to: Message from "Mark Pope" <mark.teampope@ntlworld.com> ([Leica] 21mm SA - metering with M6TTL)
Message from Lucien <director@ubi.edu> (Re: [Leica] 21mm SA - metering with M6TTL)