Binoculars Sturman 7x18 Free Focus
The main purpose of binoculars Sturman 7x18 Free Focus
Lightweight and compact prism binocular Sturman 7x18 Free Focus is designed to monitor animal and plant life, waterfowl, can be used in camping, adventure travel or during a trip into the countryside.
The main characteristics of binoculars Sturman 7x18 Free Focus
- 7x magnification, lens diameter 18 mm
- Roof prism, Focus Free (does not require focus adjustment and diopter correction)
- Housing made of impact resistant plastic, two versions: rubber or paintwork
- Comes complete with a case for storage and transportation, a strap for carrying on shoulder / neck
Design features of binoculars Sturman 7x18 Free Focus
The feature of this model is that the observer does not need to adjust focus or to correct the diopter. The optical design of binoculars Sturman 7x18 Free Focus uses the ability of the human eye to change the focal length due to the contraction and relaxation of the ciliary muscle (internal steam muscle of the eye, which provides an accommodation). Please note that this model may not be suitable for people with vision problems.
Minimum focusing distance is quite far away, but You will be able to monitor moving objects without additional focus adjustment. Do not waste time adjusting and refocusing, watch as soon as the binocular is in your hands!
Sturman 7x18 Free Focus is characterized by small dimensions and low weight, it is possible to carry in a jacket pocket or sports bag, store in car glove box or in gorodetska backpack. The case is made of durable plastic, has two types of coverage: non-slip rubber or paint.
The basis of the inversion system is a combination of the Roof prisms. Surveillance is recommended with a sufficient level of daylight.
Terms of use of the binoculars Sturman 7x18 Free Focus
Binoculars Sturman 7x18 Free Focus comes complete with neck strap, case for storage and transport, with a napkin for cleaning of optics.
Experts of our online store will provide the most complete information about the main characteristics and design features of the binoculars Sturman 7x18 Free Focus. Post your question on the website or call us at (495) 989-10-56.
Technical characteristics of the binoculars Sturman 7x18 Free Focus
Technical data | Sturman 7x18 Free Focus |
PrismSystem | Roof |
Magnification, times | 7 |
Effective Lens Diameter, mm | 18 |
Exit Pupil Diameter, mm | 2,6 |
The removal of exit pupil, mm | 10 |
Relative brightness | Of 6.76 |
Field of View, deg | 7,3 |
Field of View at 1000m, m | 128 |
The solution," | 10,3 |
Functional Temperature | -10C TO+45C |
Focus type | focus free |
Unit weight, kg | 0,2 |
Country of Origin | China |
Lens diameter (mm) | 18 |
Magnification | 7 |
Field of view (deg) | 7.3 |
Field of view (m/1000m) | 128 |
Exit pupil diameter (mm) | 2.6 |
Eye Relief (mm) | 10 |
Brand | Sturman |
Focus | Free focus |
Optical designs | Roof prism |
Case material | plastic |
The coverage of the case | painting, plastic, rubber |
Color | black |
Country of origin | China |
Manufacturer's warranty (years) | 0.5 |
Dimensions (mm) | 80 × 60 × 40 |
Package dimensions, place 1 (mm) | 100 × 75 × 47 |
Net weight (kg) | 0.14 |
Gross weight 1 (kg) | 0.2 |