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Old 29-08-2020, 04:35 PM
jahnpahwa (JP)
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jahnpahwa is offline
 
Join Date: Apr 2020
Location: Canberra, AUS
Posts: 593
Cliff, if you have the handpiece for the mount, you can just polar align using your handset, no sighting the SCP, no worries. It might take some time to get below an arc-minute, but at the focal length of your 76 it will be good enough for longer exposures than 30seconds. (unless you are in F12 mode with 1.7x extender?). I was using the handset PA routine at 1000mm FL and able to get 45 to 60 second subs unguided on a good night, perhaps 90seconds or so with a 500 or 600mm FL?



I've been taking some subs on the helix too, at 80mm F5 ish and 5min subs at gain 139 (unity on zwo) narrowband has been getting it done.



Good luck!
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