[gregbradley]

Originally Posted by Mighty_oz

Glad to hear that u seem to have it all under control Can u do a test for me as i've been having trouble with trying to get 5 min unguided round stars with my fsq and try it without guiding at all These mounts are supposed to do that for 2000mm FL's.
From what i've read 1x1 bin for pec is the best, yet to do that myself, Perth's weather's not been the best.
Also do u have a pic of your setup ? Any leads off the end of the scope from the camera etc or did u route them thru the mount ?

Thanks Greg

Thanks for the tip. I think I'll do another one at 1x1 and save both log files so I can revert if it worsens things. I think also per the manual a night of good seeing is really required. 1x1 versus 2x2 probably needs excellent seeing to get that advantage but you may as well max it out anyway.

I don't use through the mount cabling. I do use the PMX usb and power port on the dovetail though. Very handy.

Per the manual you need to use ProTrack for long unguided round star images. I was just reading through the ProTrack info as I plan to do that tonight. 50 -200 point model is required first and super model used.

You need perfect polar alignment as well so you'll need to do several t-point automated runs anyway to get to that point. What threw me off last night I think was the fact my polar alignment was more perfect than I am used to and perhaps this new worm is considerably more accurate than the old one. So autoguiding, especially with ProTrack enabled may only need to be the occassional minor correction once every 15 seconds or longer. I have to trial and error to get the best exposure length and aggressiveness setting.

I'll let you know how I go with ProTrack to see if I can get 10 minute pinpoint star images with no autoguiding. I'll give that a go tonight now everything seems to be working.

So your ideal PMX setup is a very stable platform, levelled off, T-point model done and Polar alignment tweaked until you get the report
no further corrections needed. 200 point t-point model with Protrack enabled. A PEC curve done exactly per the instructions and on a night of good seeing, an offaxis style gudiing setup to prevent flexure, a sensitive and clean autoguiding camera. Scope protected from wind.

Originally Posted by DavidNg

Congratulation Greg. Whats you have achieved in one night most probably took us many weeks and pulled half of our hair out.

Its been a while really delayed mostly by the fact I haven't been able to use it much for a while due to work.

When it all works its an impressive engineering /software meld which is why I got it in the first place. I guess its well known that early adopters of new technology often have problems. Nikon seems to be having trouble that way recently with quality issues with some of their high end cameras.

Greg.