The widefield view was taken with a 28mm focal length lens. The mosiac of closeups on the right were taken with a 3" refractor, focal length 380 mm (~F5.2). The photos from 2 and 3 Feb were taken with ISO 800 and 45 sec exposure. The images from 31 Jan and 1 Feb were shorter exposures, so any impression that the comet has brightened in these photos is due to inconsistent exposure times.
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