Description
TheNATIONAL GEOGRAPHIC8x42is aroof prism binocularwith amagnification of 8xand anoptical aperture of 42mm. Adiopter adjustmentallows diopter corrections up to +-2. A high qualityfull coatingon all glass elements reduce distracting reflections and improves the light transmission and provides a high contrast particularly in bad light conditions. Thebinocularis built with a handy and stain resistantrubber surface. A normaltripod connectionallows to fix it on a tripod for better observations. For better transport abagand a comfortstrapis included in the delivery.
FEATURES
- Compact binoculars with good light gathering power for use in the early twilight
- Fully coated optics. diopter compensation up to ± 2 diopters
- Body with rubber armor and tripod thread
- Dimensions: 146x126x53 mm. Gewicht: 660 g
- Scope of delivery: Binoculars. Carrying Strap. Case. Instructions
SPECIFICATIONS
| FIELD OF APPLICATION | |
|---|---|
| Field of application |
|
| TYPE | |
| Type | Standard Binoculars |
| OPTICAL SPECIFICATIONS | |
| Optical design | Roof |
| Magnification | 8 |
| Mirror/Lens diam. | 42 mm |
| Material prismn | BaK-4 |
| Type of coating | Fully coated |
| Diopter setting | |
| Field of view at 1000m7 | 110 m |
| Field of view | 6.29 degrees |
| Light intensity7 | 27.56 |
| Twilight factor7 | 18.33 |
| GENERAL TECHNICAL DATA | |
| Focusing system | Central focus wheel |
| Eyecups | TwistUp eyecups |
| Interpupilar distance min. | 73.69 mm |
| Interpupilar distance max. | 73.69 mm |
| Colour | black |
| Body material | Plastic |
| Body armouring | Rubber/Plastic |
| Dust protection caps | dust caps for eyepiece and objective |
| Extended warranty | 5 years |
| DIMENSIONS WEIGHTS | |
| Total length | 146 mm |
| Total width | 126 mm |
| Total height | 53 mm |
| Net weight (without access.) | 660 g |
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