The NATIONAL GEOGRAPHIC 8x42 is a roof prism binocular with a magnification of 8x and an optical aperture of 42mm. A diopter adjustment allows diopter corrections up to +-2. A high quality full coating on all glass elements reduce distracting reflections and improves the light transmission and provides a high contrast particularly in bad light conditions. The binocular is built with a handy and...
The NATIONAL GEOGRAPHIC 8x42 is a roof prism binocular with a magnification of 8x and an optical aperture of 42mm. A diopter adjustment allows diopter corrections up to +-2. A high quality full coating on all glass elements reduce distracting reflections and improves the light transmission and provides a high contrast particularly in bad light conditions. The binocular is built with a handy and stain resistant rubber surface. A normal tripod connection allows to fix it on a tripod for better observations. For better transport a bag and a comfort strap is 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 |
- Bird watching & Nature observation
- Traveling & Sports
|
| 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 |
