Quote:
Originally Posted by DavidTrap
Very impressed that you maintained such core detail with 5min subs - were you using the high or low gain setting on the QSI? (just trying to workout how to achieve a similar result myself!)
Ta
DT
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High gain David. Very dark skies there though and quite still on the night. Seeing was around 7/10 on that night. Using CCDstack prevents burn out with the first thing I do is the DDP and autoscale inadjust display. Then later in PS I use shadows and highlights, focusing on preventing burn out and bringing up the stars in the outer field too.
Also, don't forget this is an 102 TSA, not a lot of diameter to work with really and longer subs are needed. Although 47 Tuc only needs 2 minutes each sub and then some 15 second subs to mask out the blown core (need to do this oject again this year to sort my previous image).