Nimar Flat Port for Select 45mm, 50mm, and 60mm Macro Lenses

Capture detailed, close-up underwater images at depths as great as 197' with this Nimar Flat Port for Select 45mm, 50mm, and 60mm Macro Lenses, including those from Sigma, Sony, Canon, and Panasonic. The port features a bayonet mount, a flat glass front element, and a durable Delrin acetal resin body. Additionally, it works with an optional manual focus gear. This port is compatible with all Nimar housings for Canon DSLR cameras.