Archived posting to the Leica Users Group, 2001/04/02

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Subject: [Leica] Bessa T, 29/1,9 and 21/4 (long!)
From: Frank Dernie <Frank.Dernie@btinternet.com>
Date: Mon, 02 Apr 2001 09:56:18 +0100

On a practical note, my concern with the Bessa T and its use with the noct
or 75 f1.4 wide open is not whether it focusses accurately enough but
whether I could hold the camera still enough whilst moving my eye from
rangefinder window to viewfinder for the desired area still to be within the
depth of field. People who fine focus these lenses by moving slightly fore
and aft will know what I mean.
I have no intention to use a tripod with such lenses.
cheers Frank

Dan wrote 
> 
> Tom,
> 
>> The 75/1,4 did show some mis-focus at extreme
>> close-up, but that could have been my doing. It was a bit of a
>> hit and miss.
> 
> If you haven't done so already, you will want to test the 75 at nearest
> focus, f1.4, on a tripod with both the Bessa T and an M6 body (.85x pref.).
> Since the Noct focuses fine close and wide, I suspect your 75 may suffer the
> same problem as mine (and other samples): at < 1.5 m, its focus begins to
> creep closer than the RF indicates.  At .7 m, mine focuses a full 3 inches
> closer than its target (as tested on two different bodies).