8x25 focus free binoculars

Jason Binoculars were popular in the 1970s and 1980s for their auto focusing ability. Bushnell bought out the Jason brand in 1992 and now offers the auto-focusing binoculars under their PermaFocus series. They are completely automatic and focus free. The lenses are fully coated and give clear, bright, sharp images that are automatically focused as you view through the lenses. You just bring them up to your eyes, aim them at whatever you want to see focused in the field of view and voila, instant clarity!

Waterproof (up to 1 m for 10 minutes) and fog-proof with O-ring seals and nitrogen gas for added resistance to the elements. Close-focusing distance of only 5 m. Turn-and-slide rubber eyecups with multi-click system make it easy to position your eye at the correct eyepoint. Eco-glass optics, free of lead and arsenic, are used for all lenses and prisms. Magnification: 8X Effective Objective Diameter: 42mm Field of View at 1,000m: 122m Exit Pupil: 5.3mm Brightness: 28.1 Eye Relief: 19.7mm Close Focus Distance: 5.0m Interpupillary Distance Adjustment: 56-72mm Length: 154mm Width: 131mm Depth: 58mm Weight: 670g Waterproof: Yes