The Helios Stellar-II 15x70 Waterproof Observation Astronomy Binoculars 30132 are an excellent waterproof observation binoculars filled with nitrogen that have individual eyepiece (IF) focusing and are intended for medium-to-long-range terrestrial and astronomical studies.
Stellar-II 70mm binoculars are strong but have a lightweight magnesium alloy body construction combined with a shockproof design.
The 'STELLAR-II' Series has a completely broadband multi-coated optical system with BaK-4 prisms. With its high-transmission lens and prism coatings, the optical system permits 85% light transmission.
The eyepiece design includes fold-down rubber eye cups for those who use spectacles, larger components, and a generous 20mm eye-relief.
These observation binoculars have a built-in tripod mounting bush. Stylishly finished in black and dark green rubber, these binoculars come with a cushioned neck strap, an eyepiece rain guard, and captive objective lens caps in a soft storage/carrying bag.
Model: ‘STELLAR-II’ SERIES 70MM WATERPROOF OBSERVATION BINOCULARS
Object Lens Diameter: 70mm
Field of view: 4.4°
F.O.V. @ 1000M: 77m
Exit Pupil Diameter: 4.66mm
Eye Relief: 20mm
Interpupillary Distance: 56 to 74mm
Light Transmission: 85%
Net Weight: 1750g
Box Weight: 3.5kg
Dimensions (LxWxH in mm): 283x220x85
Box Dimensions (LxWxH in mm): 345x270x100
Product Code: 30132
Warranty 1 year