Model: XD 33 Prominar

Description :

High-End Binoculars with PROMINAR Lenses

The optical technology of the PROMINAR XD lens has been passed from spotting scope to binocular to bring the world of chromatic aberration free views to binoculars

Overview :

PROMINAR XD Lens

This is the newest Kowa binoculars to use the PROMINAR brand name, utilizing four XD lenses. These high performance binoculars use the technology of the TSN-880/770 series spotting scopes and pair XD lenses with convex lenses made of glass with special dispersion properties to reduce chromatic aberration to a further degree. This advanced technology creates a bright image with high contrast and remarkable color reproduction that can not be duplicated by a normal achromatic lens.

Wide Angled Binoculars

The GENESIS/XD33 Series are the "WIDE-ANGLED binoculars" and comply with the ISO 14132 standard

Phase-Coated Roof Prism

The prism is phase-coated to ensure sharp images and outstanding contrast

New Multi Coated Optical System

New coatings provide superior image brightness and precise color reproduction for improved viewing pleasure

Close Focus of 1.5m (4.9 feet)

Ideal for observation of plants, insects, and other objects within close range

Waterproof and Filled with Dry Nitrogen Gas

*Not intended for underwater use

Diopter Lock

The diopter control is equipped with a locking mechanism that keeps the diopter from accidentally being changed

Kowa C³ Coating

Kowa's roof prism binoculars use the Schmidt-Pechan prism. One surface of the Pechan prism does not provide total reflection, so we have applied a highly reflective multi-coating called C³ coating. This allows for a higher reflectivity than with silver or optically enhanced aluminum, offering a reflectance of 99% or higher across the entire visible spectrum (400 to 700 nm). Not only does this provide bright and sharp images, but accurate color reproduction is also achieved. Furthermore, the roof prism of the Schmidt prism is phase coated to prevent the loss of contrast and image resolution

Fig.1 Prism Construction                                     Fig.2

Specification :

Model	XD33 PROMINAR8×33	XD33 PROMINAR10×33
Magnification	8×	10×
Objective Lens Diameter	33mm	33mm
Lens Type	4-XD Lenses	4-XD Lenses
Real Field of View	8.0°	6.8°
Field of View at 1000m	140m	119m
Field of View at 1000yds	420ft	357ft
Exit Pupil	4.1mm	3.3mm
Relative Brightness	16.8	10.9
Twilight Factor	16.2	18.2
Eye Relief	15mm	15mm
Minimum Focusing Distance	1.5m (4.9ft)
Length	133-142mm (5.2-5.6in)
Width	103-126mm (4.1-5.0in)
Height	51-65mm (2.0-2.6in)
Weight	590g (20.8oz)

Model: Genesis/XD44

Description :

High-End Binoculars with PROMINAR Lenses
The optical technology of the PROMINAR XD lens has been passed from spotting scope to binocular to bring the world of chromatic aberration free views to binoculars

Overview :

PROMINAR XD Lens

This is the first Kowa full size binocular to use the PROMINAR brand name, utilizing four XD lenses. These high performance binoculars use the technology of the TSN-880/770 series spotting scopes and pair XD lenses with convex lenses made of glass with special dispersion properties to reduce chromatic aberration to a further degree. This advanced technology creates a bright image with high contrast and remarkable color reproduction that can not be duplicated by a normal achromatic lens

High Refractive Index Prism

The new prism system of the GENESIS/XD44 allows for a wide field of view and edge to edge sharpness with minimal loss of light. This high refractive roof prism (Bak4 + SK15) offers near total reflectance and when combined with Kowa’s proprietary C³ coating the ultimate viewing experience is achieved

Phase-Coated Roof Prism

The prism is phase-coated to ensure sharp images and outstanding contrast

Magnesium Alloy Body

The magnesium alloy body decreases the weight of the binocular while providing a rugged structure that can withstand the severest conditions

Close Focus of 1.7m (5.5 feet)

Ideal for observation of plants, insects, and other objects within close range

Waterproof and Filled with Dry Nitrogen Gas

*Not intended for underwater use

Diopter Lock

The diopter control is equipped with a locking mechanism that keeps the diopter from accidentally being changed

Filter Threads on the Objective Barrels

Filters can be attached in front of the objective lenses. (Filter Size: 46 mm)

Kowa C³ Coating

Kowa’s roof prism binoculars use the Schmidt-Pechan prism. One surface of the Pechan prism does not provide total reflection, so we have applied a highly reflective multi-coating called C³ coating. This allows for a higher reflectivity than with silver or optically enhanced aluminum, offering a reflectance of 99% or higher across the entire visible spectrum (400 to 700 nm). Not only does this provide bright and sharp images, but accurate color reproduction is also achieved. Furthermore, the roof prism of the Schmidt prism is phase coated to prevent the loss of contrast and image resolution

Fig.1 Prism Construction                                     Fig.2

Specification :

Model	GENESIS/XD44 PROMINAR8.5×44	GENESIS/XD44 PROMINAR10.5×44
Magnification	8.5×	10.5×
Objective Lens Diameter	44mm	44mm
Minimum Focusing Distance	1.7m (5.5feet)	1.7m (5.5feet)
Real Field of View	7.0°	6.2°
Exit Pupil	5.2mm	4.2mm
Relative Brightness	27.0	17.6
Eye Relief	18.3mm	16mm
Field of View at 1000m/yds	122.3m/yds	108.3m/yds
Dimensions (L×W×H)	165×138×64mm (6.5×5.4×2.5in)	165×138×64mm (6.5×5.4×2.5in)
Weight	940g (33.2oz)	960g (33.9oz)

Model: High Lander Series

Description :

This binocular allows you to comfortably observe wildlife or astronomical objects that require hours of stationary observation. The large 82mm lenses have excellent light-gathering power, providing a bright field of view with minimal distortion all the way to the edge of the lens

Overview :

High-End "PROMINAR" Model with Fluorite Crystal Lenses

The PROMINAR model (BL8J3) with pure fluorite crystal objective lenses is available for those seeking the highest optical performance

Fully Multicoated Optics

All lenses, prisms, and dustproof glass are fully multicoated, ensuring a clear visual range and sharp images

Durable and Functional Body

The strong yet lightweight die-cast aluminum housing is extremely durable, with a rigid structure that can endure tough use. The built in handle on the body provides an easy means of carrying

Waterproof and Filled with Dry Nitrogen Gas

The housing is waterproof to JIS* Protection Class 7** and filled with dry nitrogen gas to prevent the lens from fogging.
*JIS=Japanese Industrial Standard.
**Not intended for use underwater

Standard 32x Wide Angle Eyepieces

The eyepieces are designed to provide a wide field of view and long eye relief for comfortable viewing without eye fatigue

Features :

Installing/Removing the Eyepiece
To install the eyepiece, place it in the opening and push until the eyepiece hits against the top of the focus ring. To remove the eyepiece, simply pull the eyepiece straight out of the focus ring

Focusing and Interpupillary Distance Adjustment
The interpupillary distance is adjusted by moving the eyepieces left and right. Focusing of the binoculars is achieved by turning the focus rings (located below the eyepieces)

Using the Sightline
The sightline is useful for finding the object you wish to view.
By aligning the sightline on the handle and the protrusion on the main body, objects can be easily sighted

Sliding Hood
When facing the sun, pull out the sunshade to keep unwanted light from entering the binocular

Specification :

Model	BL8J1 HIGH LANDER	BL8J3 HIGH LANDER PROMINAR
Lens type	Nomal Lens	Fluorite Crystal Lens
Objective Lens Diameter	82mm	82mm
Minimum Focusing Distance	20m(21.9yds)	20m(21.9yds)
Dimensions (L×W×H)	430×240×150mm (16.9×9.4×5.9in)	430×240×150mm (16.9×9.4×5.9in)
Weight	6.2kg (14lbs)	6.2kg (14lbs)
Filter Diameter	95mm	95mm

*Filter can be attached