2020-07-20
I am obsessed with getting a good image of this comet. This picture was captured using my Sony A7R4 camera and the 70-200 mm lens. There is some streaking of the stars because the shutter speed was 10 seconds, which is too long for the 200 mm lens. Streaking occurs because the earth is rotating, thus the camera is moving relative to the stars while the shutter is open. This creates a motion blur. Wider angle lenses are more forgiving of this phenomenon, but the comet would appear as only a tiny smudge.
Sony A7R4 with 70-200 mm f2.8 lens at 200 mm: shutter speed 10 seconds, f2.8, ISO 2000.
Monte