New Full Braodband Multicoatted wateproof 25X100 long distance big binoculars

Description

The new  25x100mm Deluxe is ideal for serious binocular astronomy or long-range terrestrial viewing on a budget. Available in your choice of CF (center-focus) or IF (individual focus).  The CF model is the largest and most-powerful binocular on the market that has center-focus, which is a big advantage when viewing a moving target. New prism mounting system uses precision floating plates (as found on our Ultra Series), which do a better job of maintaining alignment than common prism-tilt systems. Features fully broadband multi-coated optics (all air-to-glass surfaces, including prisms), rubber-armored all-metal waterproof construction (nitrogen filled), braced and hinged objective tubes, and built-in mount. This binocular has a 2.4° field of view, with very good sharpness across the entire field. The CF eyepieces have twist-up eyecups, the IF has fold-down eyecups- both can be used with glasses (usable eye relief is an adequate 12mm). Includes objective covers, ocular caps, and our exclusive Heavy-Duty aluminum-frame case!

25X100 outdoor long distance big  binoculars

Magnification    25

Objective diameter(mm)    100mm

Prism Type    Porro/BAK4

Number of Lens    7pcs/5groups

Lens Coating    FMC-Full broadband Multicoatings

Angle of View    2.4°

Field of View    43m/1000m,131ft/1000yds

Exit Pupil Diameter(mm)    4mm

Eye Relief(mm)    17.34mm

Relative Brightness    16

Twilight Index    250

Interpupillary Distance    54mm-73mm

Resolution    ≤2.5″

Near Focus    50m

all weather    Yes

shockproof and waterpoof    Yes

Nitrogen filled    Yes

Eyecup system    fold down