7x50 ED 天体観測用双眼鏡
Highly recommended by Sky and telescope reviewed in May 2008 issue,
we also recommend 10x50ED binocular in the same price and quality.
Ideal as first instrument for star-gazing, or as a easy-to-carry companion
during field trips, astro observations, bird watching, sailing and hiking...
7.3 deg wide FOV, sharp to the corner, individual eyepiece focusing, Extra
-low dispersion (ED) glass objectives for an exceptional color correction.
Objective Diameter 50mm
Exit Pupil 7.1mm
Prism System Porro Prism System
Coating Fully Multi-coated
Minimum focus distance 4m
Focus System Individual Focus System
Water Proof Yes
Angle of View 7.5°
Apparent Angle of View 53A°