The Oceana Series from Celestron features waterproof models for marine use. Choose from three feature-rich models - whether you want center focus, traditional individual focus, or a model with a compass and reticle. All are rubber covered to protect against rough handling. All provide maximum optical performance with BAK-4 prisms and multi-coatings for sharp images with high contrast and resolution. Each model has a large, 50mm objective lens to offer maximum image brightness even in low light conditions, like dusk and dawn.
Type of Prism: BAK-4 Porro Prism
Coating: Multicoated Optics
Real Angular Field of View: 7 degrees
Field of View at 1000 Yards: 367'
Exit Pupil: 7.1 mm
Eye Relief: 24mm
Close Focus Distance (ft): 25'
Rubber Coated (Armored): Yes
Waterproof / Fogproof: Yes Dry nitrogen charged.
Camera Tripod Adaptable: Yes
Weight: 40 oz.