Pro Glass HD MC UV Filter 77mm (A014B-R) — Fits 7artisans Photoelectric 15mm f/4 (Canon RF) — 97% Passthrough, Multicoated Low-Profile Aluminum

Fits: 7artisans Photoelectric 15mm f/4 Lens (Canon RF) — confirmed compatibility with model A014B-R. This 77mm ultraviolet (UV) filter is built with a low-profile, pressed-aluminum frame to reduce the chance of vignetting on wide-angle optics. Optical protective glass is multicoated to improve transmission and resist reflections, delivering 97% passthrough. Designed as a protective UV filter in a 77 mm size, it preserves image quality while shielding the front element.