Re: [Leica] how can the 75 Lux focus go bad?

["kididdoc" <kididdoc@home.com>]

Thanks Dan for a very clear summary...Steve
- ----- Original Message -----
From: "Dan Honemann" <ddh@home.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Wednesday, February 07, 2001 9:24 AM
Subject: RE: [Leica] how can the 75 Lux focus go bad?


> Oops--forgot to mention that aperture should be set wide open for all
tests,
> and shutter speed set for proper exposure.
>
> Dan
>
> > Tape some newsprint to a notebook or binder and tape a ruler on
> > top of that.  Then open the notebook to an angle of at least 30
> > degrees (enough that you will be able to focus on the 6" mark of
> > the ruler, but not so much that it is virtually parallel to the
> > film plane, as you want the front and far ends of the ruler to
> > have some measureable distance from each other).
>
> [...]
>