KOWA PROMINAR OFFICIAL WEB SITE

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.

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.

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

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

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

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

*Not intended for underwater use.

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

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 C 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

Model	GENESIS/XD33 PROMINAR8×33	GENESIS/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)

Sold separately