Issue 121 of Underwater Photography magazine is now available to download. Included in this issue are the winning images from the 2021 United Nations World Oceans Day Photo Competition, reviews of the UWTechnics TTL converter, Sea & Sea YS-D3 strobe, and Zeiss Pancolor lens. Techniques include using older gear, kayak diving, and blackwater while shooting blackwater in Cozumel and Lord Howe Island are the featured destinations.