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The classic Porro prism binoculars are rugged and compact, making it the ideal traveling companion. The lenses and prisms of BK-7 glass provide high image quality. Focusing takes place via a convenient center focusing knob. Thanks to the diopter adjustment these binoculars are suitable for spectacle wearers.
The body of the NATIONAL GEOGRAPHIC 8x40 Porro binoculars is provided with a rubber coating, which together with the ergonomic shape provide for a solid grip. For comfortable long-term observations, a tripod thread is integrated.
FEATURES
Optical characteristics | |
---|---|
Type of build: | Porro |
Magnification: | 8 x |
Minimum focusing distance (m): | 7 |
Objective lense diameter (mm): | 40 |
Eye relief (mm): | 15 |
Exit pupil (mm): | 5 |
Eyepiece diopter adjustment: | ± 2 |
Max. interpupillar distance (mm): | 72 |
Min. interpupillar distance (mm): | 56 |
Glass material: | BK-7 |
Field of view | |
Field of view at 1,000 m (m): | 110 |
Light intensity: | 25 |
Twilight factor: | 17.7 |
Operational characteristics | |
Operating temperature (°C): | -10....+40 |
General | |
Dimensions (mm): | 172 x 155 x 55 |
Weight (kg): | 0.700 |
Warranty: | 2 years |
Included accessories | |
Carrying bag: | Yes |
Carrying strap: | Yes |
User manual: | Yes |
Lens cloth: | Yes |
Area of application | |
Bird watching: | Very good |
Hiking | Good |
Hunting: | Good |
Traveling | Good |