I recently obtained an Explore Scientific push-to DOB scope. To make it easier to use, I then obtained an Astro Devices (AD) Nexus II and set of encoders. While the azimuth encoder is a conventional rotary type, the altitude encoder is magnetic. The rotary encoder has a known Steps/Rev (SPR) parameter. For the altitude encoder, the SPR must be determined empirically by looking at the relationship between encoder steps and the altitude angle of the scope. Encoder steps are obtained from AD's app DeepSky Browser. These two encoder SPR parameters are then used in SkySafari/Telescope/Setup. There is some unknown small amount of error in calculating the altitude SPR. As the scope is moved across the sky, it is inevitable the SkySafari scope cross-hairs will slightly veer off target.
My request is for SkySafari to add a 'Sync" button to move the cross-hairs from slightly 'off target' to 'on target'. This feature is used on other planetarium programs and it is extremely valuable when star hopping to find those little dim targets. I suspect this feature would be equally valuable for go-to systems as well.
Thanks, Don K