The Japanese manufacturer Optisan offers binoculars with a waterproof design that meets the JIS 7 (Japanese Industry Standard Grade 7) standard and withstands demanding conditions. The body is additionally nitrogen-purged to prevent fogging. Thanks to excellent ergonomics, the binoculars fit perfectly in the hands and the rubberized surface ensures a secure grip.
The Japanese optical system is of a very high level. The lenses are multi-coated with an anti-reflective coating that ensures light transmission and reduces glare. Prisms made of optical glass BaK4 provide a bright and sharp image across the entire field of view.
The dioptre adjustment is located on the right eyepiece and can be adjusted in a range from -3 to +3 dioptres.
Option of mounting on a tripod.
Key features:
- lightweight construction ensures low weight
- BaK4 glass prisms and multiple anti-reflective coatings
- twist-up eyecups and sufficient eye relief for users wearing glasses
- rubberized surface for better grip
- meets the JIS 7 (Japanese Industry Standard Grade 7) standard for waterproofness at a depth of 1 m for 30 minutes
- dioptre adjustment in the range of ± 3 dioptres