Re: Remote focus?

C. G. Anderson


How far is your run? I was concerned about voltage drop.


Ron Wodaski wrote:

I use a JMI NGF-S focuser on a variety of scopes (SCT, refractors) from the
comfort of my family room while imaging and controlling the scope remotely.
I just run a long 6-conductor phone cable out to the focuser, and use the
JMI hand controller. Works extremely well. I got the DRO option so that I
can tell exactly how far I'm moving the focus position; I find this to be
preferable when focusing remotely.

Ron Wodaski
The New Astronomy Book Site -

-----Original Message-----
From: C. G. Anderson [mailto:chris@...]
Sent: Thursday, September 21, 2000 2:44 PM
To: sbiguser@...; ap-gto@...
Subject: [ap-gto] Remote focus?

I am attempting to set up a network between my comfy living room
computer and my freezing cold observatory computer. I think I can work
out all the bugs as far as imaging and data transfer are concerned, but
focus is a problem. Short of running two wires out from the house and
using a JMI-type controller, is there a better way? I have an AP900GTO,
and may be able to use their DigitalSky Voice software (it has a focus
control mode, but it seems a bit klunky). Is there any other software
out there that might be used to control a focus motor from the keyboard,
in small increments suitable for fine adjustments?
C. G. Anderson
C. G. Anderson

"The red lights flicker, sonar weak, air valve hissing open.
Half her pressure blown away, Flounder in the Ocean."

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