Telescope auto focuser

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  • Member since
    June, 2001
Telescope auto focuser
Posted by hunter61073 on Sunday, January 16, 2005 9:55 AM
Where can I find and purchase a GOOD auto focuser for my Orion 8" sky- view pro scope. I need one for CCD pics. I know this will make things a ton easier on me when its cold out there. -5 at night right now!!
I love the cold night sky.

Any info would be greatly appreciated!
I have a tight budget, so please keep that in mind when divulging all the info.
THANKS!!!Big Smile [:D]Black Eye [B)]
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  • Member since
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Posted by jballauer on Thursday, January 20, 2005 12:13 AM
Okay, since you have a tight budget, that leaves little choice! Autofocusers are expensive accessories, especially for newts which normally aren't accessorized in such a way. You might see if JMI (www.jimsmobile.com) has one that might work with your situation. Otherwise, the Technical Innovations Robofocus can be made to work with your setup, but like I said, it's not cheap...so forget I mentioned it. ;-}

jay
www.allaboutastro.com

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Posted by jballauer on Thursday, January 20, 2005 12:15 AM
BTW, if you get one, be sure it's of the type that turns the scope's focus knob. Some autofocusers actually go into the light path and work independently of the existing focuser. Your newt will have very little backfocus, so it's hightly unlikely that you could make such a autofocuser work for you.

jay
www.allaboutastro.com

  • Member since
    June, 2001
Posted by hunter61073 on Tuesday, March 15, 2005 6:14 AM
What about the new autofocuser from Orion?
Has anyone out the recieved one. I see it is already on backorder. I am VERY curious about this system. seeing as it designed for this telescope and all.

ARE YOU OUT THERE!!!!!!!!!
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  • From: Texas
Posted by chipdatajeffB on Tuesday, March 15, 2005 9:05 AM
QUOTE: Originally posted by hunter61073

What about the new autofocuser from Orion?
Do you have a link to it you can post here?

I don't find it by searching their site.

The AccuFocus they're offering is not an autofocuser, it's just an electronically controlled motor you attach to your focus knob shaft and control using a forward/back pushbutton. This is about half the price of similar units from JMI. But JMI also offers true autofocusers.

??

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  • Member since
    May, 2005
Posted by Anonymous on Tuesday, March 15, 2005 9:32 AM
hunter61073:

Jeff is correct about the AccuFocus -- it will not automatically focus. However, I used a similar unit on a Meade refractor with a very wobbly tripod, and it was very effective for fine focus at high magnification. If Orion had offered this item a few months ago, I would have gotten one for my Atlas 10. Instead, I bought a MoonLiteCR2 focuser. http://www.focuser.com/ (It does not focus automatically either, but it is very, very smooth.) The AccuFocus will probably work just as well, for a lot less money. It's only drawback would be the extra hand controller and the wire running to it from the focuser.

Laird

Edit afterthought: I replaced the Orion focuser on my Atlas 10 because its movement was very stiff and difficult to use. Since then, I have learned that there are adjustment screws on Orion focusers. ($$$! gone!)(But, at least the MoonLite has slow-motion gearing.) I assume that they are the four philips head screws holding the flate plate which covers the focuser gear on the shaft. See if your focuser is similar and try freeing it up a bit. It might smooth out focusing motion enough for accuracy at high magnification. (Maybe even change the grease -- careful! No drips on the secondary!) The fix will be free, but you still won't have autofocus.
  • Member since
    May, 2005
Posted by Anonymous on Saturday, March 19, 2005 12:50 PM
Here's a CN user report on the AccuFocus:

AccuFocus

Laird

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