Waldberg 10 x 42 rangefinder binoculars
| SKU | Designation | French Law | Length (cm) | Width (cm) | Weight (g) | Magnification Min | Objectif Diam. (mm) | Battery | Colors | MSRP |
|---|---|---|---|---|---|---|---|---|---|---|
| SKU OP1780 | Designation JUMELLE-WALDBERG TELEMETRE LASER HR101-10X42 1300M | French Law Vente libre | Length (cm) 15 | Width (cm) 12 | Weight (g) 659 | Magnification Min 10x | Objectif Diam. (mm) 42 mm | Battery CR2 | Colors Black |
MSRP
399.00 € incl. tax
|
Hunting and observation binoculars with built-in rangefinder.
With a single movement, observe the game and measure the distance to adjust your shot perfectly. 10x magnification and a rangefinder with a range of 1300 m make it suitable for all types of hunting.
- All-terrain binoculars with shock-absorbing rubber coating and anti-slip studs.
- Multi-layer anti-reflective coated optics.
- Twist system eyepieces suitable for glasses wearers.
- Focusing via central dial.
- Rangefinder up to 1300m
Nut for mounting on a tripod at the front of the axis.
- Exit pupil diameter: 4.2 mm (the larger this diameter, the more comfortable the observation in low light will be).
- Twilight index: 20.5 - brightness: 27.6.
- Supplied with case, strap and optical cleaning cloth.
Calculation of the twilight index: square root of the product of magnification and diameter. For 8x42 binoculars, this is the root of 8x42, that is, the root of 336 = 18.3.
The higher the crepuscular index, the better. Indeed, the higher this index is, the more we will see details. There is another criterion for binocular clarity: brightness.
The brightness is obtained by squaring the diameter of the exit pupil (42/8 = 5.25 mm), that is to say by multiplying it by itself. In our example, the relative brightness is: 5.25 x 5.25 = 27.6. The higher this value, the better. When less than 15, binoculars are especially suitable for daytime use.
Binoculars with a twilight index greater than 25 may be called night binoculars. The limit is however fuzzy. A high crepuscular index combined with low brightness (12x40 binoculars have a twilight index of 21.9 but a brightness of 11.1) will be difficult to handle.
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