Christian, Stunning 3-dimensional appearance to your image near the moon’s! I’ve admired your lunar images for several years. Horizons and APCC are probably the best answers for your lunar tracking an

There have been a couple of threads recently about a "small AP mount" that fills a niche. Having recently driven from the East coast to Arizona with a Mach1, Eagle Pier, AP 130 EDFGT, Cameras, Batteri

Robert, I have been thinking about getting a ZWO ASI2600. Do you actually need a UV.IR filter to add potential reflections? I thought the glass cover for the camera provides UV/IR protection. Andrew

Dean, I have been looking into the spacing of some of the older AP field flatteners. Many were configured for the Pentax 6x7 system. IN that case 86.5 mm is close to the 86.4 +/- 2.5 mm I thought was

A three star alignment would be welcomed. Having a Celestron Edge1100 on my CGEM DX then my CGE Pro, I had no problem achieving 95% or better goto with the target near the middle of a 200x 82 degree e

Can the GTOCP4 read GPS data from a Celestron Skysync GPS? If not, are there any ways to automatically upload GPS data to the GTOCP4? Andrew

Great info on drift alignment and rationale for the modified method. Which drift alignment method do you recommend for aligning the RAPAS? I have to tweak might alignment. Andrew

Although I have been keeping my Gran Tourismo unused since I bought it from AP a few years ago, all the solar excitement made me decide a fine scope should be used and not just hoarded. Prediction of

Everything was fixed with a minor adjustment by phone. Thanks to George and Marj for great customer support. Andrew

Thanks for the quick response. I'll try and call. Andrew

I'm having trouble balancing my Mach 1 in declination. The worm does not completely disengage from the worm wheel when turning the release as described in the manual. The lever only moves about 135 de