Hello all,
This is a modest result obtained using a 300mm F/D 4 ED Nikon lens and a Nikon D5300 . The camera was in piggy back on a 80/480 ED AT refractor with ASI120MMS.
I tried to do polar alignment with the Nikon but the camera hangs up after the first or second capture. According Jasem, and to my understanding, this is a known problem that can't be easily reproduced and doesn't have solution today.
So I made the polar alignment using the 120MM which gives a field very close to the 30' required. I had to do it twice because the target was out of field and hopefully I succeeded because my manual polar alignment was precise enough.