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Kowa Genesis XD33 8x33 Prominar Binoculars

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Quick Overview

  • Wide Angle Binoculars

  • Phase Coated Roof Prisms

  • New Multi-Coated Optical System


  • Close Focus Of 1.5m

  • Waterproof & Dry Nitrogen Gas Filled

  • Kowa C3 Coating

  • Dioptre Lock


Kowa Genesis XD33 8x33 Binoculars


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  • Kowa Genesis XD33 8x33 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.

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

Phase Coated Roof Prisms
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
Ideal for observation of plants, insects, and other objects within close range.

Waterproof & Dry Nitrogen Gas Filled
Waterproof & filled with Dry Nitrogen Gas. *Not intended for underwater use.

Dioptre 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 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.


Magnification 8x 10x
Objective Lens Diameter 33mm
Lens Type 4-XD Lenses
Real Field of View 8.0° 6.8°
Field of View at 1000m 140m 119m
Exit Pupil 4.1mm 3.3mm
Relative Brightness 16.8 10.9
Twilight Factor 16.2 18.2
Eye Relief 15mm
Minimum Focusing Distance 1.5m
Length 133-142mm
Width 103-126mm
Height 51-65mm
Weight 590g


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