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Specifications

The manufacturer reserves the right to make changes to the product range and specifications without prior notice.

Nelson 7×35

Nelson 8×42

Optics material

ВаК–4

Optics coating

fully multi-coated

Eyepieces

2 elements in 1 group

Objectives

3 elements in 2 groups

Magnification

7x

8x

Objective lens diameter (aperture) 

35mm

1.38in

42mm

1.65in

Compas and rangefinder

built-it

Real field of view

7.5°

Field of view

130m/1000m

427ft/1000yds

120m/1000m

394ft/1000yds

Relative brightness

25

27.56

Twilight factor

15.65

18.33

Exit pupil diameter

5mm

0.2in

5.25mm

0.21in

Eye relief

23mm

0.9in

Close focus

3m

10ft

Diopter adjustment

±4D

Body

plastic, sealed, nitrogen-filled

Waterproof class

IPX7, protection against temporary immersion in water

Eyecups

twist-up

Operating temperature range

–20…+55 °С
–4…+131 °F

Summary of Contents for NELSON Series

Page 1: ... compass for easy orienting Rangefinder scale for convenient measuring of the observed object s size or distance to the object The kit includes monocular objective lens cap strap pouch optics cleaning wipe user manual and warranty Focusing and diopter adjustment Follow this procedure to adjust focus and diopter setting Set the focus diopter adjustment wheel to its original position the white mark ...

Page 2: ...The counter directional angle 190 180 10 from the buoy to the boat To locale your position precisely you need to have a second reference In Fig 3 by using the lighthouse as the second reference the direction from the lighthouse to the boat is 120 300 180 120 and the buoy 10 Reading the rangefinder scale To accurately use the rangefinder scale you will need to know either the size or distance of th...

Page 3: ...ve lens diameter aperture 35mm 1 38in 42mm 1 65in Compas and rangefinder built it Real field of view 7 5 7 Field of view 130m 1000m 427ft 1000yds 120m 1000m 394ft 1000yds Relative brightness 25 27 56 Twilight factor 15 65 18 33 Exit pupil diameter 5mm 0 2in 5 25mm 0 21in Eye relief 23mm 0 9in Close focus 3m 10ft Diopter adjustment 4D Body plastic sealed nitrogen filled Waterproof class IPX7 protec...

Page 4: ...a special case We recommend keeping the silicate gel pack when included in the kit During long storage a thin white film may appear on the rubber armor You can wipe it clean with a clean napkin Levenhuk International Lifetime Warranty All Levenhuk telescopes microscopes binoculars and other optical products except for accessories carry a lifetime warranty against defects in materials and workmansh...

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