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Dear Brendan, I deeply appreciate your going to all this trouble, especially since you're doing so from a hospital bed. I wish you a swift recovery. Thanks, again. Sincerely, Erik

It’s hard to explain ?but the boot process shows a logo screen ( a pretty Gemini 2 logo and credits) then pauses for a short time at ?“a blue screen” which states ?“touch to calibrate”.

Hi Sebastian, I'll go out in a limb and start sawing. When I run across these sorts of posts, my first thought is: "Are you moving around by your mount/telescope at all during the imagining?" My

Sebastian: A couple things come to mind. If you are seeing aberrations at very short exposures, it is more than likely something in the optics. At 5 seconds there is very little movement in the mount.

1. My guiding seems to be excellent to me, and my needs. But I'm always interested in trying to learn more, or gather tips from others. Numbers and logs don't do a lot for me. But I can usually learn

Dear Anthony, Wow...let me clear up about those pictures you show ... I made a mistake in my first PDF write-up...that Belleville washer you show in the picture should be flipped over: You want the

I have a 50/330 refractor from teleskop service (same as Stellarvue or Sharpstar) with dedicated flattener. I dont have a suggested T2-DSLR adapter so maybe that's an issue. This scope is attached to

A bit late to the thread but, having had my share of exposure to Belleville washers (thanks Michael!), and involuntary worm gear practice, let me chime in.? On a recent episode of Gold Rush, Tony had

Thanks for your reply. I was wondering if you could clarify what you mean when you say "calibrate" the hand control screen. Ince I'm automatically taken to? the "cold start, warm start, etc.", screen

Seb, This looks like it could be a flattener spacing and sensor tilt problem. Looking at the corners you have a spacing problem but the bottom is not as bad, almost perfect. This tells me you have a

Luis, This situation is why the G11T and the TRA-Axis exist, just to boost your G11 up to a 75 pounds imaging payload. -- Chip Louie - Chief Daydreamer Imagination Hardware

Henk, Is this repeatable? Does it happen in both directions??It looks like you kicked the tripod or the camera or focuser flopped. I suggest a careful retest making sure you don't have a loose screw

I have a G11G mount in my ROR observatory. Usually the weight of my instruments is about 17 kg (38 lbs). I’m thinking to buy a Celestron14 Edge that weights 21 kg (47 lbs). Then the total weight of

Its a refractor , so it should not lose collimation. I will check collimation anyway on a bright star next time. My guiding wasn't too bad. If it was guiding, stars would be more elongated on frames

Maybe your collimation is out? Mine was out a few days ago and it looked alot like that. I have an SCT, so it needs adjustment on occasion. How was your guiding?

Please look at those light frames and compare. Same egg shaped stars on all of them. 5 sec or 300 sec exposure time?doesnt make any difference. 5 sec

Brian, that's a good idea, will do. I haven't been motivated to do that yet since my current guiding is good enough for now. But the upcoming full moon days would be a good opportunity.

1st thing to do: Calibrate your HC screen. 2nd: Grit or a smal particle (or even too much pressure from the LCD “frame” rubber pad itself) gets caught in the edge or this LCD pad which causes the

Just to be clear, I did not mean to say that there is anything wrong with this.? There always will be some play in the axes in order to not bind up.? This happened to my AVX one time, and I had to

As part of my polar alignment procedure I put the G11S mount in the home position with the scope pointed at the NCP with a camera at 6400 ISO at prime focus.? I then rotate around the RA axis, mark