Thanks Guys,
Dennis us northsiders must have copped out lumps earlier - last shower here around 5pm then not again till after midnight... I'm learning to be agile with these conditions
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Ok, so heaps of gain & gamma does the trick for the onions...& less than 50% brightness kills the centre burnout!? How much lower than 50% brightness did U go exactly Rob?
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Asi - i had it around 30% for the 2.5x shot and 50% for the 4x.
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Originally Posted by davidpretorius
who's being a little experimenter now??? top findings!!
that 2.5x is very very good, and thanks for posting the 4x. Did you increase the brightness / gamma / gain with the 4x to compensate for the extra mag???
how did the cassini division look thru the ep??
last question, do you have a feel for the collimation.
and a final request, with the 4x, what is the result of the best 100 frames look like with say a histo stretch at stacking time??
these are great!
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Yeh Dave with the 4x I had to have gain up to 80%, brightness at 50% and gamma around 60-70% to get sufficient exposure... you can imagine the grain!
Cassini division was clear and most of the way round but coming in an out with the seeing.
Collimation I checked just prior to imaging. It's pretty close. It may not be absolutely perfect, but it was as close as could be achieved with the quality of the seeing.
I can give the 100 frames a try, but the killer is grain. Even with 1200 frames it's still there. With 100 it would be very noticable.
cheers,