The Orion StarShoot Autoguider though made by/and is similar to the QHY5 is totally a different beast bound by the firmware constraints put on by Orion (I'm speculating here) and the drivers for ASCOM & native mode has to be gotten off from their website only AND it cannot do video mode unlike the QHY5 which can and does have QVideo software to run it in that mode so that you can do a bit of moon/planetary stuff if you know what you're doing etc - I had owned both the Orion SSAG and QHY5 - both are equally sensitive enough (thus noisy too) for autoguiding either off an OTA or the finder
I no longer use both of these since moving over to an OAG + Lodestar which is even more sensitive by at least 10-fold
See attached image for how the Lodestar & SSAG are used with a finder as a finder-guider combo
HTH
Cheers
Bill
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