Nauticam 180 Viewfinder
The Nauticam 180° viewfinder is the perfect addition to your housing; it provides a bright, clear and undistorted 1:1 image of the camera's finder which aids in precise focusing and artistic composition.
The viewfinder features an external diopter adjustment, to easily allow you to dial in your eyesight compensation, even when you are underwater. No disassembling of the viewfinder is necessary.
The casing is made of anodised aluminium, all lenses and prisms in the viewfinder are precisely ground and multi - layer coated to ensure optimum light transmission and no distortion.
With Nauticam housings, it is simple to switch between the standard 0.66x and the Enhanced 180° viewfinder and with our specially designed adaptors, it can also be used on Ikelite, Aquatica, Sea & Sea and Nexus housings.
Check out this great review for more information: http://www.uwphotographyguide.com/nauticam-viewfinder