Comet C/2022 E3 (ZTF) was quickly identifiable in the raw images and through binoculars. The weather was a struggle with some clouds near the area during a rainy and cold week on the Aegean coast. An opening in the weather allowed this image to be captured. The greenish color could be somewhat but not easily distinguished in the raw files.

Canon 500D Rebel with Sigma 70-300 lens (133 mm) F/4.5 6400 ISO; 50 exposures of 1 sec shutter speed on a tripod without tracking.

Calibration with DeepSkyStacker from 50 dark (1 sec)/bias (1/4000 sec)/flat field (1/2000 sec) frames; detail frame shown here extracted with Photoshop at Center (RA, hms): 13h 17m 56.241s - Center (Dec, dms): +76° 44' 58.948"; Radius: 1.378 deg; Pixel scale: 9.19 arcsec/pixel (Astrometry.net). Original image was 9.14 x 6.03 deg. The DeepSkyStacker Autosave.tif 32 bit RGB file was transformed to 8 bit jpg B&W (mono). Some Photoshop curving used to enhance contrast.