China 8X42 10X42 Birding Telescope Roof Prismatic Waterproof ED Binoculars, Find details about China Nikula 10X42 Binoculars, Binoculars for Bird Watching from 8X42 10X42 Birding Telescope Roof Prismatic Waterproof ED Binoculars
Model No. | 4I/8x42 | 4I/10x42 |
Magnification | 8x | 10x |
Objective Diameter | 42mm | 42mm |
Field Angel | 7.4° | 6.5° |
Field of view | 129m/1000m(387ft/1000yds) | 114m/1000m(342ft/1000yds) |
Exit Pupil Dia. | φ5.25mm | φ4.2mm |
Near Focus | 1.2m | 1.2m |
Eye Relief | 18m | 15m |
Relative Brightness | 27.6 | 17.6 |
Prism Type | BaK4 | BaK4 |
Resolving | 6.7° | 6.7° |
Focus System | Center | Center |
Coating | Fully Multi coated | Fully Multi coated |
Eyecups | Twist-up | Twist-up |