Hi roryt, sorry for the delay, but the notification email went to spam, don't know why... I'm very happy to see somebody sharing our love for open source: I think that a lot of work has been done to fill the gap between Windows and Linux regarding sw support: did you have a look to Ekos? It looks like a very good single program for AP sessions: I do have in mind to try to port it to our platform. I think INDI is going to grow a lot: just this morning I've been contacted by one of the INDI developers asking if we have an SDK to develop an INDI driver for the AST8300. There's a growing community behind INDI (note: community, not vendors...) willing to enlarge the compatible devices. So, to answer your question: some devices lacks support on the AST8300, but our mission is to work on enlarging this support to all relevant equipment, and we're confident that the open source community will do the rest. As for the guider, I used lin_guider for a while with no problems: it is fast and accurate, with most common autoguiders supported. It supports dithering as well. I made a port of it to run on our camera (basically just a resize of the main windows of the GUI), and it looks very stable. As for your DSI I PRO, it is not supported under lin_guider (last release includes DSI2PRO) so, as you are an expert, it's time you contribute a driver for it! Jokes apart, I'm interested in understanding what you mean, step by step, with a "good AP session": at the moment, with my mount and guider, using only the camera, without a PC, I'm able to: - use an app for starting and monitoring cooling regulation - use the focus app to display a star on an highly magnified subframe at 3 fps with FWHM calculation and profile graph (soon to come autofocus support) - point an object from NGC, IC or MESSIER catalog using an app interfacing to the mount goto - frame the object with an extremely sensitive 10x5 binning liveview app - locate, calibrate and track a guide star in the autoguider camera using lin_guider - use the take photos app to schedule a serie of exposures for up to all the 7 available filters (like: first 10x600sec bin 1x1 in luminance, then 10x300sec bin2x2 in red ...), optionally with dithering - review the photos in the fits viewer app. I will post some videos soon on our Facebook page. I think most necessary steps are already available and probably the missing ones are on our schedule Bottomline: of course we're not willing to convince anyone to change methodology. Anyone can use the AST8300 with a Windows pc using the (almost ready) ASCOM driver: standalone capability is only one of the main points of our camera, but there's more to it, as you can see from the specifications. Andrea