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raymo
13-08-2015, 03:12 PM
47 secs @ ISO 1600.
There doesn't appear to be a heck of a lot of activity at the moment,
so I'll try to post a few more. My eyes are not the best, and I've only
just noticed that the stars are not quite round in this one.
raymo

Somnium
13-08-2015, 07:04 PM
:thumbsup:

jsmoraes
15-08-2015, 06:32 AM
Nice image. I think that a bit more smooth clip (less contrast-saturation) of black background and white stars will enhance the photo.
The red star is very well.
Congratulation :thumbsup:

raymo
15-08-2015, 02:22 PM
Hi Jorge, As nearly always I have an excuse for my images'
shortcomings. Most of these single frame images were taken
at 1600 or 3200 in relatively warm conditions, and are therefore quite noisy, so I darken the background to hide the noise. Obviously normally stacking would reduce the noise. Overdid the saturation a bit trying to highlight the red star.
raymo

jsmoraes
15-08-2015, 07:56 PM
Raymo, the free graphic processor Fitswork has an excelent ressource against noise at menu Processing/Blur Filter/NML Noise Filter.

In the same program at Processing/Blur Filter/Wavelet Noise Filter you get good results.

raymo
15-08-2015, 08:01 PM
Thanks Jorge, I'll download it.
raymo