I have had my first ever Mount about 4 weeks and now that I am learning a few things I feel like sending it back. I tried guiding over the last 3 days. Using Astroberry, the internal guiding algorithm complains, so I switched to PHD2. It had a complaint about the RA and DEC differing bo 144% but I got it to guide and stop complaining but it had over 9 arcsec p-p oscillation in RA. DEC was well behaved. Also the HFD is over 3 pixels. Is that typical? My camera has 1.5 arcsec pixels so 9 is not encouraging. The guide focus adjustment mechanism is crap. You loosen a thumb screw and then try to position it to a couple of mils with your finger by sliding it. Is there some trick here? Couldn’t they afford a screw to adjust it?
I asked tech support about the guiding and they asked if I was using a PC and ASCOM so I dug out a PC to see if it was any different. PHD2 goes thru a calibration and complains about poor quality and asks if I just did a meridian flip and forgot to set the reversed DEC. It then starts tracking and drives the star out of the field. Repeat he the whole sequence with the same results.
Has anyone had problems like this? Oh I also bought iStarFi. What junk. If I move 15 feet away there isn’t enough signal to work and standing next to it I still had strange problems. I was going to buy a AZ EQ mount the EQ5 or 6 but some test data showed that the CEM40 had better open loop PEC errors. I have see star trails with 70mm focalength and 60 second exposures. I got to say the iPolar is really neat.