Astronomy Site: Meade Advanced Products Users Group Archive: Re: [M]: Auto Focus on 416XT - JMI


 

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Subject: Re: [M]: Auto Focus on 416XT - JMI
From: John W Downs
Reply To: mapug@shore.net
Date: Thu May 20 08:17:35 1999

While you're here, how about checking out the Astronomy Book List ?

Jay, the final fine focus IMHO is best achieved with the JMI NGF-S zero
image shift electronic focuser. Since the JMI moves the camera/eyepiece
in very small movements with no primary mirror change, fine focus can be
a breeze.

john
Willard Observatory
(Not far from Mt. Palomar)
http://members.aol.com/rlecker/optas.html

>As I have been initiated to the "imaging club", I find the greatest
>time,
>for me anyways, is FOCUS! I can get the coarse focus just fine, but
>that
>final critical adjustment eludes me.
>
>Does the Meade focus motor (LX200 10" f/10) do the "auto focus" well?
>At
>all?
>
>While a focus motor is appealing for just the enjoyment for visual
>observing, I can see loads of time saved if this device can perform
>the
>final step.
>
>Any input welcome, as always, thanks in advance for your help!
>
>Jay
>
>

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