RE: [APML] Focusing and temperature change issues during an exposure- advice wanted

[Alan Voetsch <critter12952@yahoo.com>]

Hi Gene,

--- Gene Horr <genehorr@houston.rr.com> wrote:
> The cheapest solution is to add a cheapo motorized
> knob focuser and
> do your own calibration run with a thermometer
> strapped to the tube.
> Refocus through the night and record how far you
> have to move the
> focuser knob each time.

I think this is similiar to what Matt said. The scary
thing is that my focuser mechanism is completely
unpredictable. Maybe I should take a closer look at
that, huh? :-)

Thanks Gene,
Alan

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