Re: [APML] Taurus cameras

["Bobby Middleton" <bobm@koyote.com>]

Don't part with that camera without checking with me.
How do these cameras hook onto one's focuser or OAG Tom? I must be missing
an adaptor or something.
Bobby


----- Original Message -----
From: Tom & Lou Krajci <krajcit@3lefties.com>

> From: "Bobby Middleton" <bobm@koyote.com>
>
> > Anybody left out there who is familiar with the old Taurus cameras (C2)?
>
> I have one...gathering dust.
>
> > Is there an easy to way to calibrate one of these to exact critical
focus
> > with one's SLR? What I have in mind is to compose/focus with my F2 then
> > switch to the Taurus.
>
> I know you don't like K/E focus work, but if you do it carefully, you only
> have to do it for one night of test/calibration on a full moon night.
>
> Use a piece of glass across the rails of both camera bodies and rig up a
> knife edge focuser.  Adjust and lock the focuser with the F2 body in place
> after you get a good null with the KE focuser.  Then remove the F2 body,
and
> place the Taurus body in place and get a good KE null.  Then measure the
> difference, or set up some sort of locking/spacer ring (like a
parfocalizing
> ring you can put on eyepiece barrels) so that when the F2 is in
focus...the
> Taurus is also in focus.
>
> If you want to be extra careful, see if your setup is repeatable as you
swap
> camera bodies, and as you rotate the camera bodies to various
orientations.
>
> Hope this helps,
> Tom Krajci
>
>
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