ZWO is a very smart, innovative company that made astrophotography easy for me, after I had struggled for years. ASIStudio has wonderful features for planetary imaging. I can't think of a better piece of software. The ASIAir app, though, is very limited in features for sophisticated planetary imaging. It's such a shame that people with expensive mounts they purchased before the ZWO mounts were available don't get to experience of joy of using ASIStudio to do planetary image capture. I hope that some day ZWO will consider adding EQMod mounts to those supported by ASIStudio.