The Story
Flat ports are recommended for standard, macro and telephoto lenses. Due to refraction, flat ports reduce the angle of coverage of a lens and magnify the image. This makes the flat port ideal when using standard, macro or zoom lenses to shoot small subjects.
Our focus ports feature built-in gearing for lenses whose focus collar extends beyond the housing focus. Note that if a port is long enough to accommodate the full length of a 1:1 macro lens, the lens may vignette when used at infinity. If access to the lens' full range is desired, then select a dome port instead.
Accommodates lenses up to 7.5-inch (16.5 cm) long and 3.3-inch (8.4 cm) in diameter. Allows switching between manual and auto focus underwater.
Description
Flat ports are recommended for standard, macro and telephoto lenses. Due to refraction, flat ports reduce the angle of coverage of a lens and magnify the image. This makes the flat port ideal when using standard, macro or zoom lenses to shoot small subjects.
Our focus ports feature built-in gearing for lenses whose focus collar extends beyond the housing focus. Note that if a port is long enough to accommodate the full length of a 1:1 macro lens, the lens may vignette when used at infinity. If access to the lens' full range is desired, then select a dome port instead.
Accommodates lenses up to 7.5-inch (16.5 cm) long and 3.3-inch (8.4 cm) in diameter. Allows switching between manual and auto focus underwater.
