Quote:
Originally Posted by gregbradley
Beautiful fine resolution and round stars. Good choice for exposure.
Seeing as your tracking is good you could even go 15 minutes ISO400 and go even deeper. Its worth a try.
Was that auto white balance? It could be taste but white balance seems a tad warm. On a Nikon 4800 kelvin worked well. Canon's seem to be a bit browner in hue so perhaps some experimentation there in Lightroom?
The Nikon 85mm F1.8G is one of Nikon's sharpest lenses but can have some colour fringing wide open. I don't see any there so F4 is good. I noticed with my copy CA went around F2.8.
Greg.
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Thanks Greg!
It probably is a bit warm, I had a bit more of a fiddle with the blues and cooled it down some, maybe a little to much?
Yes the 85mm is very sharp
there is still a slight amount of CA T F4 but quite manageable.
The white balance was on auto, but I had shifted it towards the reds a bit as my nebulae were coming out bright green and blue
if its clear tonight I'll have a go with your recommended colour temperature.
If long subs are an advantage well I will certainly give them a go, I did try a 5 min exposure last night and the stars were still perfect so I should easily be able to go longer.
Cheers
Jo