View towards the center of our galaxy.
The super-massive black hole lies at the lower central part of this composite image.
Pentax K-3 II was mounted on Vixen Polarie. I used Tamron 17-50mm f/2.8 XR Di II LD set at 50mm. I can confirm that this lens is a good performer for astrophotography.
The night was relatively hot, so I was obliged to take many exposures and I tried various settings for the exposure, aperture and ISO.
The best 58 out of 65 RAWs (DNG) were aligned and stacked in DeepSkyStacker. Further processing took place in Pixnsight LE (artificial flat frame subtraction) and CS3 (levels, curves, selective color, brightness and contrast, saturation, correcting the imperfections of the stars at the corners due to coma).
The total exposure time was almost 31.7 minutes.
Details of the exposures:
1 x 21 sec
40 x 20 sec
2 x 90 sec
5 x 120 sec
10 x 30 sec
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