This Monday I took my very first picture of a well-known comet C/2023 A3 (Tsuchinshan-ATLAS) from Chesapeake, VA.
This stunning comet was the brightest in over a decade and easily visible with naked eye! I was able to get this shot while imaging comet right after sunset. It had the pretty long tail stretching by 21°, so I wanted to use a camera lens to be able to fit as much of the comet as possible.

Luckily, I own an old Soviet Union lens Jupiter-21M. It has 200mm of the focal length and can shoot at f/4. My camera choice was Canon 6D Mark II. Since the background sky was still pretty bright, I ended up taking 4-seconds exposures at ISO 1600. I stacked 146 frames in DSS with following processing in PixInsight and Adobe Photoshop.
Below are a couple of images from the site where I was imaging the comet.

