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North America Nebula (NGC 7000) & Pelican Nebula (IC 5070)

astrophotography dslr tripod


Alen Koebel

North America Nebula (NGC 7000) & Pelican Nebula (IC 5070)

This is by no means an impressive image or even a good one. It was merely a test of the Astrotracer feature provided in the Pentax K-3II DSLR, which was mounted on a tripod. It is a stack of four 60-second exposures at ISO 1600 through a 200mm f/4 SMC Pentax-M lens at f/5.6. Obviously, far more subs would be required to get a decent final image with less noise. What this also proved, besides the effectiveness of Astrotracer, is that the Pentax K-3II does not really need to be modified to take photos in a reasonable amount of time of emission nebula strong in H-alpha light. It's sensitivity at that wavelength is, in my opinion, sufficient. Note that this image used no flats, darks or bias frames. Dithering between every frame occurred naturally because of the movement of the object between exposures, which was approximately recentered after the second exposure. Taken August 10, 2018 at the Starfest star party near Mount Forest, Ontario.

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