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Best automated focusing solution for AT65EDQ?

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#1 nine44

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Posted 20 October 2013 - 06:39 PM

I have been noticing a fairly obvious focus shift in my overnight imaging sessions. I'd love to learn what others are using for autofocus of the AT65EDQ. I have BYEOS and would love to keep using this software. Thoughts???

#2 waassaabee

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Posted 21 October 2013 - 07:30 AM

I'm curious what the temperature ranges are that are causing the shift...

#3 nine44

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Posted 21 October 2013 - 09:06 AM

Not a whole lot--from 20C to 10C, typically. If I leave focus alone, the next night, focus is spot on. So I don't think it is slippage in the focuser.

#4 waassaabee

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Posted 21 October 2013 - 10:38 AM

Yikes! This is common to the AT65EDQ? I express concern as I am on the list for the next shipment.

#5 Seanem44

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Posted 21 October 2013 - 02:16 PM

No need to be concerned with the AT65EDQ in any way. At it's current price point, its an absolute steal. They could probably sell it for $150 more than current and I'd still call it a good deal.

#6 Jason B

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Posted 21 October 2013 - 03:05 PM

I have been imaging in Michigan with our crazy temp swings and have never noticed an issue before with mine.

#7 nine44

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Posted 21 October 2013 - 03:43 PM

The AT65EDQ is awesome! The focus issue is common among all scopes. That's why they make automated focusers. So, back to the original question...can someone offer a reco for an automated focuser???

#8 kyang

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Posted 21 October 2013 - 05:43 PM

Want to know the suggestion too

#9 fetoma

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Posted 21 October 2013 - 07:23 PM

It looks like BYEOS can control an ASCOM focuser, along with FocusMax (free), so a Robofocus unit should do the job.

#10 waassaabee

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Posted 21 October 2013 - 07:43 PM

Will the robofocus do the temperature compensation?

#11 jerry10137

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Posted 21 October 2013 - 08:44 PM

I don't mind babysitting my focus. That's part of what we need to do. If there is an automated solution out there tho, I would be very interested to hear it.

My last imaging session was done in the high plains desert where the air was dry and warm during the day and fairly chilly in the evening. I had to babysit the focus on all three of my rigs. Not complaining but if there is an automated solution, I'd love to hear it.

#12 Seanem44

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Posted 21 October 2013 - 08:45 PM

Wow... Those robofocusers are the price of the AT65 almost. I can live without.

#13 nine44

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Posted 21 October 2013 - 09:20 PM

How about this? Anyone here using one? Looks like about $200.
http://www.usb-foc.us/

#14 fetoma

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Posted 22 October 2013 - 03:30 PM

229 euros = $315 plus shipping costs. Get the Robofocus. One thing to remember with temp. comp. is that the sensor is sensing the air temp. and not the optics, so calibrate accordingly.

#15 nine44

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Posted 22 October 2013 - 08:31 PM

Thanks Frank!






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