Bright, high-resolution, compact, and lightweight straight viewfinder. Using a large prism having less light attenuation enables to see clearer and brighter viewfinder image even corners and to provide less visual variation with different eye positions. Supports EVFs (Electronic Viewfinders) on full-frame mirrorless cameras with a wide viewing angle. Delivers a clear viewfinder image with no darkened or blurred corners. The viewfinder provides same magnification as camera’s viewfinder (1.0x) and extends its eye-point at 60 mm/2.4 inch not to have vignetting even through a mask. High quality optical components are carefully housed in a small, light yet durable body which is made from corrosion resistant aluminum alloy and FRP: fiber reinforced plastic.
 
Optional Lock Ring Tool for X-2 Finder Unit is required for installation.
 
Weight : 305 g/10.8 oz (on land)

A straight viewfinder designed for Nauticam housings, providing exceptional clarity for full-frame DSLR cameras. A large prism with minimal light loss and anti-reflective coatings applied to each optical surface ensures a bright, clear view all the way to the edges. The optical design also targets the electronic viewfinders (EVFs) of mirrorless cameras, which offer a wider field of view than optical viewfinders. This minimizes light loss and image degradation in the corners that often occur when using EVFs or high-magnification viewfinders. The viewfinder provides 1.0x magnification, identical to that on land, offering a natural and undistorted view without the visual strain often caused by forced magnification.
The viewfinder features a 60 mm high eye-point design, allowing comfortable viewing of the entire image without vignetting, even when wearing a mask. The case that houses the large prism employs thick-walled FRP (fiberglass-reinforced plastic), combining compactness and light weight with exceptional strength.
 
Weight : 305 g/10.8 oz (on land)

Bright, high-resolution, compact, and lightweight 45° viewfinder.　The viewfinder provides same magnification as camera’s viewfinder (1.0x) and extends its eye-point at 60 mm/2.4 inch not to have vignetting even through a mask. The 45° angled eyepiece allows you to shoot low-angle subjects, such as gobies on sandy areas, with ease.
 
Optional Lock Ring Tool for X-2 Finder Unit is required for installation.
 
Weight : 337 g/11.9 oz (on land)
 
 

A viewfinder angled 45° from the camera’s optical axis. The viewfinder provides same magnification as camera’s viewfinder (1.0x) and extends its eye-point at 60 mm/2.4 inch not to have vignetting even through a mask. The 45° angled eyepiece allows you to shoot low-angle subjects, such as gobies on sandy areas, with ease. The eyepiece rotates a full 360°, ensuring effortless use even for low-angle photography in portrait orientation.
 
Optional Lock Ring Tool for X-2 Finder Unit is required for installation.
 
Weight : 332 g/11.7 oz (on land)

A 45°viewfinder designed for Nauticam housings. The viewfinder provides same magnification as camera’s viewfinder (1.0x) and extends its eye-point at 60 mm/2.4 inch not to have vignetting even through a mask. The eyepiece is angled 45° relative to the camera's optical axis, making it ideal for shooting low-angle subjects, such as gobies on sandy bottoms. The eyepiece rotates a full 360°, ensuring effortless use even for low-angle photography in portrait orientation. A slightly larger entrance pupil, combined with high-refractive-index total internal reflection prisms and anti-reflective coatings, produces a bright viewfinder image.
 
Weight : 332 g/11.7 oz (on land)

Add-on correction lens for the Straight Viewfinder Unit II/45° Viewfinder Unit II to shift +1.5 diopter for those who are unable to adjust with camera’s viewfinder diopter adjustment range due to long sight or presbyopia. The Diopter Correction Lens is installed by dropping it inside of the viewfinder from housing side and tighten it by packaged tool (not removable underwater).