Nikon PROSTAFF 7S Manual

Table of Contents

Contents

1 Nomenclature
2 Eyecups
3 Neckstrap and caps during observation
4 Specifications
5 Documents / Resources
- 5.1 Download manual

Nomenclature

Eyecup
Neck strap eyelet
Focusing ring
Objective lens
Interpupillary distance
Dioptre ring
Dioptre index
0 (zero) dioptre position
Central shaft

ITEMS SUPPLIED
Binoculars ×1
Eyepiece cap ×1
Objective lens caps ×2
Soft case ×1
Neck strap ×1

Eyecups

For directions in which to turn the eyecups, please refer to the image.

For eyeglass wearers, use fully retracted. You can also use either of the two click stops before reaching the fully retracted position.
For non-eyeglass wearers, use fully extended. You can also use either of the two click stops before reaching the fully extended position.

Neckstrap and caps during observation

Please refer to images A, B, and C.

Neck Strap
Attach the neckstrap as illustrated (A), paying special attention to avoid twisting the strap.

Objective lens caps
The binoculars are used by removing the objective lens caps and allowing them to hang from the neckstrap (B).
To attach/detach caps from the neckstrap as shown in image (C) in the following order:

Attaching: c → b → a
Detaching: a → b → c

Eyepiece cap
You can hook up the eyepiece cap on the neckstrap as shown in image (B) during observation to avoid losing it.

Specifications

Type: Dach prism central focusing type
Model	8×30	10×30	8×42	10×42
Magnification (×)	8	10	8	10
Effective diameter of objective lens (mm)	30	30	42	42
Angular field of view (real) (˚)	6.5	6.0	6.8	6.2
Angular field of view (apparent) (˚)*	48.9	55.3	50.8	56.9
Field of view at 1,000m/yds. (m/ft.)	114/341	105/314	119/356	108/325
Exit pupil (mm)	3.8	3.0	5.3	4.2
Brightness	14.4	9	28.1	17.6
Eye relief (mm)	15.4	15.4	19.5	15.5
Close focusing distance, approx. (m/ft.)	2.5/8.2	2.5/8.2	4/13.1	4/13.1
Interpupillary distance adjustment (mm)	56-72	56-72	56-72	56-72
Length (mm/in.)	119/4.7	119/4.7	167/6.6	164/6.5
Width (mm/in.)	123/4.8	123/4.8	129/5.1	129/5.1
Thickness (mm/in.)	49/1.9	49/1.9	55/2.2	55/2.2
Weight (g/oz.)	415/14.6	420/14.8	650/22.9	645/22.8
Structure	Waterproof (up to 1 meter for 10 minutes) and nitrogen gas filled*

* The number calculated by the formula [tan ω' = Γ x tanω ]: Apparent field of view: 2ω', Magnification: Γ, Real field of view: 2ω

*Waterproof models:
All models shown are waterproof, and will suffer no damage to the optical system if submerged or dropped in water to a maximum depth of 1 meter for up to 10 minutes.
These products offer the following advantages:

Can be used in conditions of high humidity, dust and rain without risk of damage.
Nitrogen-filled design makes them resistant to condensation and mold.

Observe the following when using these products:

As the unit does not have a perfectly sealed structure, it should not be operated nor held in running water.
Any moisture should be wiped off before adjusting movable parts (focusing knob, eyepiece, etc.) of these products to prevent damage and for safety reasons.

To keep your binoculars in excellent condition, Nikon Vision recommends regular servicing by an authorized dealer.

Specifications and design are subject to change without notice.
No reproduction in any form of this "Instruction Manual," in whole or in part (except for brief quotation in critical articles or reviews), may be made without written authorization from NIKON VISION CO., LTD.