PENTAX Binoculars
MARINE 7x50
HYDRO
BRAVE THE ELEMENTS
Exceptionally precise yet almost unbreakable, the PENTAX
Marine was developed for especially demanding conditions. Its oil-filled compass is built into the eyepiece, and an
advanced stabilisation system reduces unwanted vibration
when viewing. Bearings are clearly readable in 1 degree
>Water proof, fog proof,
nitrogen-purged
>Fully multi-coated lenses
steps, and the rangefinder reticle allows easy distance calculation of known objects.
>Rubber armour and adjustable
eyepieces
Immediate positioning with built in
compass and distance scale.
Twist-up eye cups.
For outstanding image quality, smc lens
coatings, BaK4 prisms, Phase Correction
coatings and water repellant (hydrophobic)
coatings.
Magnification
The first number in the product name is the magnification. The
SMC-SUPER MULTI COATING
MARINE 7 x 50 Hydro for example, offers 7 times magnification,
making your subject appear seven times larger compared to the
To improve the overall transmission and resolu-
naked eye. Normally, the higher the magnification, the narrow-
tion, lens-coatings are used to reduce reflection
er the field of view. Continuous observation for long periods is
and any loss in contrast. With the use of Super
best with magnifications up to ten times, any higher and keep-
Multi Coated lenses, PENTAX achieves high effi-
ing the image steady becomes less easy.
ciency, allowing light transmission of up to 98%!
The PENTAX SMC coating is a complex and sophisticated 7-layer coating that corrects light
transmission over the full light spectrum. The
Objective Lens Diameter
patented PENTAX SMC technology is renowned in
The diameter in mm of the front lens of the binocular, and the
the optical industry.
second number in the product name, so the MARINE 7 x 50 Hydro
has an objective lens diameter of 50mm. The larger this number
is, the better the light gathering power of the binocular, particularly important for low light viewing. Binoculars with larger
objective lens diameters are normally heavier, more bulky and
costly.
Eyepoint
The eyepoint is the distance between the viewers eye and the
eyepiece lens, measured in mm. The larger this number is, the
more comfortable the binocular for spectacle wearers. For a pair
of semi-compact binoculars the eyepoint should be between
14 and 18mm, whilst for a full size pair such as the MARINE
7 x 50 Hydro, an eyepoint of between 15 and 20mm is usual.
Spectacle wearers should insist on an eyepoint of at least 17mm
to see the complete field of view.
MARINE 7x50 Hydro
Magnification
Objective Lens Diameter
Type
Lens coating
Prism
Twilight factor
Field of View (at 1,000m)
Minimum focus
7 x
50mm
Full size roof prism binoculars
All lenses fully multi coated
BaK4 with Phase Correction Coating
18.7
116m
3.0m
Exit pupil
7.1mm
Eyepoint
17.6mm
Eyecups
fully adjustable
Tripod adaptor
Size (L x W x H in mm)
Weight (g)
PENTAX Code No.
Accessories
No
175 x 134 x 62
976
51024 (Blue), 51025 (Orange),
51026 (incl. Southern hemisphere compass)
Case, strap
Code No. Barcode
Code No.
Barcode
BLUE
51024
0027075148925
ORANGE
51025
0027075148932
Code No. incl. Southern hemisphere compass
51026
Barcode
0027075148949