|
ASIAIR Narrowband Autofocus Exposure Times
Hi All,
I have no problem using ASIAIR autofocus with broadband, however I find Narrowband more difficult. I am using Antlia 3.5nm filters with ASI183mm.
Focussing on targets like NGC2070 is particularly difficult. Moving to a nearby star field to focus might be fine for the first filter and then slewing to target, but this would be impractical for each filter.
What exposure lengths would you recommend for ASIAIR autofocus using narrowband filters and at what BIN setting?
Feedback appreciated.
Best.
SB
|