Francis Barker E8x42RM Binoculars
These E8x42RM Binoculars have been designed to meet the requirements of the modern fighting Whether in urban, jungle, desert or sea environments they are designed to give a clarity and brightness offering real benefits with a sizeable weight reduction from current in service
alternatives.
The Defence Products Division of Pyser-SGI has been manufacturing and supplying quality,
precision-engineered optical products for over 50 years. Throughout this time binoculars have been
supplied to armed forces worldwide, resulting in a committed long-term supplier/customer
relationship based upon a comprehensive through-life-cycle support. This success has been
achieved by supplying a product with superb fully coated optics and prisms for the brightest
possible image and a wide, clear field of view, housed in a precision-cast, finely machined, ultralight anodised alloy body.
Made in the UK
Objective lens dia (mm) |
42 |
Manification |
8x |
Field of view in degrees |
6.2 |
Field of view in metres |
108 at 1000m |
Eye relief distance (mm) |
19 |
Exit pupil diameter (mm) |
5.2 |
Minimum close focus distance (m) |
3 |
Eyepiece lens diameter (mm) |
20 |
Individual eyepiece dioptal focusing |
Yes. One Eyepiece Dioptre Adjustment |
Interpupillary adjustment (mm) |
57 to 73 |
Mils reticle/Graticule |
H +40 to -40 Mils, In 10 Mil Divisions |
Optical coating |
MgF2 fully coated |
Prisms |
Bak-4 |
Relative Brightness |
27 |
Height (mm) |
139 |
Width (open) |
125 |
Width (closed) |
108 |
Weight (grams) |
635 |
Construction of body |
Aluminium diecast |
Waterproof rating |
1m for 5min |
Nigtrogen filled, repurgeble |
Yes |
Colour |
Black |
Case |
Soft Black |
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E8x42RM feature robust rubber armouring to protect against the hardest environmental conditions
and filled with dry nitrogen to prevent fogging. Naturally, E8x42RM are totally immersion proof and
have large exit pupils for superb low light usage. Pop-up eyecups are standard for ease of use by
wearers of spectacles, sunglasses or goggles. Each binocular is supplied with a rainguard, rubber
objective covers, comfortable wide fabric neck strap and case. Each binocular is fitted with a
reticle for accurate measuring of distance or object size.
These are the binoculars that, following exhaustive user and environmental testing, were chosen by
UK Land Forces to update their binocular fleet
Made in the Uk