Seafrogs Underwater Housing for Canon EOS R50, 40M Waterproof Case with FL100 Long Flat Port Kit, Waterproof Scuba Diving Case for Canon R50+ EF 16-35mm f/2.8, EF 24-70mm f/2.8L

The add-ones appear to me to be junk marketed to the unknowing at very high $$$$$. Buy a cheaper housing and spend your money on a better lens. Remember the question is WHEN will may housing leak, not IF it will leak. https://www.amazon.com/Seafrogs-Underwater-Housing-Waterproof-16-35mm/dp/B0FDQM7XV1 You are probably better off with a waterproof action camera.