Marine Steiner Navigator Pro Porro Prism Binoculars 7x50 Navy Blue Box & Papers

Description

Up for sale is this pre-owned, lightly used, Made In Germany, Steiner Navigator Pro Porro Prism Binoculars 7x50.
Most of the following information was copied on a similar item:
This is a rarely available and really amazing pair. The optics are amazing, clean and clear.
Fog proof, waterproof, N2 Injection System.
Steiner's proprietary N2 Injection System pressurizes optics with nitrogen and trace helium.
If seals are not absolutely tight, hyperbaric testing reveals escaped helium molecules, the optics are disassembled, and the process is repeated.
Fail-safe testing with medical-grade tools ensures absolute quality, positive internal pressure, and zero fogging and water intrusion despite drastic changes, severe conditions, and lifetimes of use.
Real front lens diameter
Left:   50+/- 0.05 mm.
Right:  50+/- 0.05 mm
8 / 8.0 pkt.
Real magnification:
7.1+/- 0.05x.
Transmission:
85.4+/- 1.5%
Chromatic aberration: Negligible in the center, low on the very edge.
Astigmatism:
Medium.
Distortion:
The distance between the first curved line and the field center compared to the field of vision radius: 69% +\- 4%.
Coma
Appears in a distance of 65% of the field and is medium on the very edge.
The additional box, strap and papers as pictured are included.
Only the parts in photographs are included in the sale.
We took detailed photographs of the binoculars for sale, please study them for actual shape and condition, if there is a mark, defect or a mistake on our part describing the binoculars seen in pictures or not mentioned in words but visible in pictures, it will be considered as described, pictures are the most important part of the description by far and take precedence, any purchase decision must be made based upon studying them.
If you have less than 5 feedback please write to us before placing a bid.
Returns accepted to a USA address.
We do not offer or do partial refunds.
This binoculars set will only be shipped insured with tracking information and signature receipt request.