Archived posting to the Leica Users Group, 1999/06/22

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Subject: Re: [Leica] battery cover - Paging Mr. Tom A.
From: "Dan Post" <dwpost@email.msn.com>
Date: Tue, 22 Jun 1999 10:16:27 -0400

Tom-
You have an incredibly inventive mind! No wonder the winder is such a
success! The idea of a pressure activated switch in the cover was a classic
example of inspired creative thinking!
I hope you come up with a working model!
Dan
- ----- Original Message -----
From: <TTAbrahams@aol.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Monday, June 21, 1999 10:45 PM
Subject: Re: [Leica] battery cover - Paging Mr. Tom A.


> In a message dated 6/21/99 7:01:10 PM Pacific Daylight Time,
> lesliek@oriental.com.hk writes:
> << Subj: Re: [Leica] battery cover - Paging Mr. Tom A.
>
>  Tom,
>
>  >I received my M6 slotted battery cover last Friday, from Leica. Nice. I
>  >will only use wooden nickels in the slot.
>
>  Maybe its a good time to get to the drawing board and bring to life an
>  exquisitely machined, titanium finished, with built-in flip lever battery
>  cover with color-matching to Softies as an option.  Millions in the
making!!
>
>  Leslie K
>   >>
> Leslie, It is not as if the idea has not occurred to me! Almost since the
> inception of the M6 I have been trying to get Leica to make a battery
cover
> that has an On/Off switch on it and a coin slot too (all my battery covers
> are slightly chewed up by the inappropriate use of pliers to unscrew
them!).
> Leica solution to the problem was to put the Off switch on the
shutterspeed
> dial of the M6 TTL! It should be a simple matter of having the sliding
switch
> on the battery cover breaking the ground connection. To use you just slide
it
> in place, use the M6 as usual and when you don't need it, slide it onto
off
> position (the diodes in the M6 and the "Vegas Strip" in the TTL is highly
> irritating when you are shooting in very low light, it almost blinds you
with
> an aggressive burst of red when you are trying to focus in a low contrast,
> low light situation - when you need the precise focus the most!).
>  Does anyone on the LUG have circuit schematics of the M6 and/or M6 TTL
> cameras? It should be possible to design and build a simple switching
> mechanism and battery cover to replace the current one. I can probably
figure
> out the mechanics of it, as well as the manufacturing thereof, but
> electronics is a "black art" to me!
>  An alternative to an On/Off switch would be a small, pressure-activated
> switch on the battery cover (where the vulcanite now resides). You would
> depress this switch and do your meter reading, release the pressure and
> happily shoot, without red lights in the viewfinder anymore. Of course we
> could always relocated the "Red Dot" to that switch and actually have it
> serve more of a purpose than covering up a screw head - and it would make
the
> M6 look like a M4P and you could impress other Leica users by nonchalantly
> stating, "The exposure is 1/15 between f 1 and 1,2".
> All the best,
> Tom A
>