Description
Enables to see all finder image without vignetting even through a mask by extending eye point without changing finder image size (1.0x). 45º angled eyepiece benefits you to shoot a low angle subject like a goby on sand area etc. Also the eyepiece rotates 360º supporting comfortable vertical low angle shot.
Length/width/height** | 91.5 x 57.5 x 81.0 mm/3.6 x 2.3 x 3.2 in. |
Weight [air]** | 332 g/10.7oz |
Material/finishing | Corrosion-resisting aluminum alloy/black rigid alumite, ABS etc. |
Lens material/finishing | Optical glass/antireflection coating |
Lens construction | 5 elements in 3 groups (plus high refractive total reflection prism x 1) |
Magnification | 1.0x |
Depth rating | 100 m/328ft |
*Subject to change without prior notice.
**Including the eyecup without the lens cap.


Compact and lightweight straight type viewfinder designed for full frame DSLR. 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. INON viewfinder provides unparalleled bright finder image to support fine focusing comfortably even dark underwater.
High quality large prism

Optically designed to suit to an EVF: electrical viewfinder of a full size DSLR camera providing wider viewing angle having minimal vignetting or blurred part even at corners. The viewfinder provides same magnification as camera’s viewfinder (1.0x) and extends its eye-point at 60 mm/2.4 in. 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.
Length/width/height** | 101.8 x 72.2 x 74.0 mm/4.0 x 2.8 x 2.9 in. |
Weight [air]** | 305 g/10.8oz |
Material/finishing | Corrosion-resisting aluminum alloy/black rigid alumite, PC etc. |
Lens material/finishing | Optical glass/antireflection coating |
Lens construction | 5 elements in 3 groups, high refractive porro prism x 3 |
Magnification/eye-point(u/w) | 1.0x, approx. 60 mm/2.4 in.[u/w], approx. 45 mm/1.8 in.[air] |
Depth rating | 100 m/328ft |
* Subject to change without prior notice.
** Including the eyecup without the lens cap.
[DSLR]
All models
[Mirrorless]
Sony: NA-A9, NA-A7RIII, NA-A7II, NA-A7
Nikon: NA-Z7
Canon: NA-R
Fujifilm: NA-XT3, NA-GFX50S
Panasonic: NA-S1R, NA-S1H
Olympus: NA-EM1X
Viewfinder Installation
Both viewfinders are bundled with dedicated tool to remove preinstalled Nauticam viewfinder and install INON viewfinder for self installation. You can refer to instruction movie in addition to the user manual. If you do not have confident on self installation, please consult with your purchasing dealer for advice.