----- Original Message -----
From: "Alan Chan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: May 24, 2001 11:12 PM
Subject: Re: Another LX problem...
> >I had the same problem with my third LX (Gosh it is nice to
be
> >able to say that!!). Adjusting the height of the bottom
mirror
> >rest was the cure.
> >Rob Studdert goes into some detail about the mirror rest here
> >http://members.ozemail.com.au/~distudio/mirrorbox.gif
> >Adjusting the height of the rest so that focus was correct
from
> >top to bottom also gave correct focus at the film plane.
> >William Robb
>
> I don't know about this. The original owner said the split
image gave
> correct focus (that means the middle part of the mirror). By
altering the
> mirror rest (held by 2 screws) under the mirror, the middle
part of the
> mirror would be risen (that means the split image will no
longer give
> correct focus, and only part of the mirror will give correct
focus).
Basic geometry Alan. If the bottom of the mirror is not in the
correct spot, then the top will not be either. Nor will the
middle. I suspect if Giafranco checks, he will find his focus at
the middle of the screen is slightly out. This can be checked
quite easily with a focusing screen at the film plane. My
service guy tells me that the top pivot point of the LX mirror
is also adjustable, though not easily. It is, apparently,
calibrated at the factory, and gives very few problems. It is
the bottom rest that is problematic with the LX.
Anyway, it is certainly worth bringing the mirror into alignment
with the bottom adjuster and checking for critical focus at the
film plane prior to having the camera stripped for a major and
expensive overhaul.
William Robb
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