Top-Down Porthole, Extra Long

This product has been discontinued.  Check out the new Mark II! The Original Porthole2009 – 2026 After fifteen years we have officially retired the original Avast Marine Porthole. This simple tool helped reefkeepers around the world capture distortion-free photos of their aquariums and became one of the longest running products in our lineup. While the original Porthole is no longer available, a next generation design is currently in development. Use the gold waitlist button to the right to be notified when the Porthole Mark II is released. Take great photos of your aquarium from the top down, the way corals are meant to be viewed!  This handy lens housing mounts directly to the barrel of your DSLR lens, allowing you to (carefully) dip the housing in the water and get tack sharp photos without annoying lightbulb reflections or surface ripples.  Using the three thumbscrews to mount the housing on the lens barrel, you can turn the housing to zoom the lens, which can be difficult with tra