Archived posting to the Leica Users Group, 1999/01/31
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It's a plug for a hole that is used to reach one of the RFDR
screws and the close focus limit adjustment. -- all M's have
it...
Haven't seen a TTL, but that's what it was for in the past.
Walt
On Sat, 30
Jan 1999, Andrew M. Moore wrote:
>
> I noticed that the non-TTL M6 has a small hole that's sealed with a
> rubber plug, which you can see by removing the lens and looking at the
> bottom surface on the inside.
>
> Page 15 of Leica's brochure ("Leica. The Program") shows that this is
> where the TTL photodiode sensor resides.
>
> Does anyone know when the hole/plug was added to the non-TTL body, or
> has it been there since the first M6? I wonder if TTL was always the
> planned use for that spot, or if there was some other reason for it.
>
> Andrew
>