Lijing International Optical Equipment Factory
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10x42 Professional Nitrogen-Filled Telescope ED Binoculars Telescope For Adults
Parameter:
| Magnification | 8x | 10x |
| Objective Diameter | 42mm | 42mm |
| Field of View (at 1000m) | 128m/384ft | 114m/342ft |
| Field Angle | 7.3 | 6.5 |
| Exit Pupil | 5.25mm | 4.2mm |
| Eye Relief | 18.0mm | 15.0mm |
| Near Focus | 2.5m | 2.5m |
| Focus System | Center Focus | |
| Size | 15.1x13.5x5.6cm | |
| Weight | 708g | |
Features:
1. Fully Multi-coated Lens
All lens including eyepiece and objective lens are fully multi-coated, light transmittance is 95% above.
2. Large BAK4 Prism with coating process
Advance large BAK4 prism (20mm) with FMC coating, prism dielectric film and phase corrected prism in order to provide bright and crisp images.
3. Advanced ED Glass
Objective lens use advanced ED glass with abbe 90.3, lead to extra low dispersion,less chromatic fringe.bring a clear and sharper image.
4. Topping Optical System
11 pieces lens with FMC green coating in total for best optical performance. Objective lens 4E3G; Ocular lens 5E3G.
5. Big Eyepiece
23mm big eyepiece for more comfortable view experience.
6. Large Objective Lens
42mm large objective diameter for wide angle view with less film aberration.
7. Advanced Near Focus
2.5m Close focus, Getting clear vision at distance far and close.
