Installing INON viewfinder on other brand housing may void housing warranty. Please check warranty condition of your housing before purchase.
Straight Viewfinder Unit II
Straight Viewfinder Unit II for X-2
(for INON X-2 series housings)
JAN code : 4562121439207
Straight Viewfinder Unit II for Nauticam
(for Nauticam housings)
JAN code : 4562121439894
Features
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.
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.
Left: Finder Window (waterproof glass without optics. Not able to see corners of finder image through a mask)
Center: Pick-up Finder (camera’s finder image is demagnifed to extend eye-point to see all finder image)
Right: Straight/45º Viewfinder (extending eye-point without changing finder image size enables to see all finder image without vignetting through a mask)
Top: Finder Window (waterproof glass without optics. Not able to see corners of finder image through a mask)
Middle: Pick-up Finder (camera’s finder image is demagnifed to extend eye-point to see all finder image)
Bottom: Straight/45º Viewfinder (extending eye-point without changing finder image size enables to see all finder image without vignetting through a mask)
Specifications*
| 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.
45º Viewfinder Unit II
45º Viewfinder Unit II for X-2
(for INON X-2 series housings)
45º Viewfinder Unit II for Nauticam
(for Nauticam housings)
Features
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.
Specification*
| 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.
OPTION
Diopter Correction Lens [+1.5D] for 45VF-II/STVF-II
Add-on correction lens for the Straight Viewfinder Unit II/45º 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).
Compatible Nauticam housings
[DSLR]
| NA Housing（DSLR） |
| All models |
[Mirrorless]
| NA Housing [MIL] | |
| Sony | α1 / A9 / A7RV / A7IV / A7SIII / α2020 / A7RIV / A7RIII / A7II / A7 |
| Nikon | Z9 / Z7 / Z7Ⅴ / Z7II / Z50 |
| Canon | R5C / R3 / R5 / R6 / R7 / EOS R |
| Fujifilm | XT4 / XT3 / GFX100S / GFX100 / GFX50S |
| Panasonic | S1R / S1H |
| Olympus | 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.