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Bruce I guide at 400 or 800mm with my st4, I also get long strings of 0's and 1's. You really need to determine if you have st4 or g11 problems, and the way to do this is to attempt some manual

This appears to be a somewhat common lament. My new G-11/Tak FS-102 and ST-7E do not track quite as well as I would like unless I take great care in setting it up and using the proper guide

I've been having this odd motor chatter that I thought was OK until I had my G11 set up right next to another one and the other one made almost no noise. I have attached a link to a WAV file i made of

Chris, have you tried tracking a star visually?, use at least 400x (stack barlows if you have to) and see how the mount reacts..I have found you cannot adjust the worm gears without a visual check

Hello Members: Like Chris Woodruff, I too may have a problem with RA, but this is a G11 on a permanent pier/observatory setting. The pier is 6" schedule 40 pipe with gusseting, etc. with a

On my GM-8 this is NOT the case. I took 5 100 sec consecutive unguided images at 450mm fl and the images were identical. The stars didn't move more than 1 or 2 pixels. The problem is each of the

I am just trying to find out if this is just typical or are there things we could do to improve this? Chris Woodruff Valencia, CA wrote: people or 20 crappy LX50 around a improvement not (after

On my G-11 mount (with the standard stepper motors) I don't see a trace of vibration at the highest powers if I tighten the clutches down. Rockett

We have several G11 and GM8s in our local group and I have never seen any high power vibration, from what I have heard its not a common problem and its caused by bad motors..Most likely the CCD

wrote: second steps, The new that have Hello group, The information on the Gemini Goto drive is somewhat incorrect. The servos have an approximate resolution of 0.1 arc sec they are in fact a DC

I have had a hard time getting the G11 to perform as well as other people seem to be doing. I can't do unguided exposures for more than 15 or 20 seconds with my Tak FS102 and the periodic error is

The Astro-Physics mounts use servo motors which have 0.05 arc second steps, the G11 and G8 use stepper motors which have 0.5 arc second steps. The new Losmandy goto system replaces the stepper motors

Sorry, I did misread the original message. Old eyes! <g> Paul Sterngold --- Ray Porter <ray_porter@...> wrote:

You are correct, sorry for the confusion! I am simply asking (after ranting) how long of an exposure, UNGUIDED, can I expect with the GM- 8 with say a TV101 @ f4.5 with an ST-7 1x1 binned? I am

David, I have the 150 and EQ4(CG5) just for the portability issue. All I did was to replace the aluminum tripod legs with homemade wooden legs and the scope is just fine. With the lower prices I

Paul, I think Chris's question is why his cheap CG-5 seems to perform so much better than his new GM-8. Actually, he has a very specific question. For those who have used the GM-8 for unguided CCD

I'm not seeing anything here involving Losmandy. Am I missing something? If not, you might want to post this on one of the CCD lists on eGroups. Paul Sterngold --- ccwoodruff@... wrote:

Actually the CG-5 is okay if you disassemble and re-grease the mount and replace the silly aluminum legs with wooden ones. A thump to the OTA will dampen out in a second or so (as opposed to 6

I keep hearing this. I already have a G11. Use it with my C11 SCT. I was thinking about picking up the CR150 mounted on a CG5 hoping for a more portable scope. The consensus, however seems to be

Hi Ray Edward at Lumicon once suggested a quick process to resolve this kind of issue. Move one axis 360 degrees and watch the encoder position numbers on the DSC. When the encoder resolution is off,