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Old 22-01-2016, 05:07 PM
E_ri_k (Erik)
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E_ri_k is offline
 
Join Date: Jun 2011
Location: Lakes Entrance
Posts: 846
Quote:
Originally Posted by PRejto View Post
Hi Erik,

Wow, too bad that you had an ONAG and sold it! The automatic focusing with it is brilliant not to mention the super wide FOV for finding guide stars. Oh well, I'm not aware of any other system that can do this though there has been talk for a while that Optec is going to adapt this for use with OAG. That would be game changing!

SGP can focus without slewing away from the object of interest. You might want to check that out.

FocusMax, both new (V.4) and earlier free versions (V.3) can automatically slew to a focus star, auto focus, and slew back to your target but require PinPoint or T-Point to do this.

All of these systems work but all take time. This is where FocusLock/ONAG shines. It just maintains focus all night. You need not focus again even starting up on the next night of imaging as long as the guide camera position is unchanged. FL takes about 1 min, maybe 2 at most to automatically focus the imaging camera after a guide star is selected. After that I can image for many hours and simply not focus. This is tough to beat.

Peter
Hey Peter, yeah I know, I was a bit reluctant to part with it, but I need the money to fund other astro stuff! You're right, it is a tough one to beat, I was thinking the other night why it couldn't be adapted to work with an OAG. I really love the ease of finding a guide star with it. I'm using my ED80 for guiding the TOA and its FOV is pretty good.

I think I'll have to buy SGP :p looks pretty good, just another life of software to learn haha.

Erik
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