Newcon Optik BDN 14X50 User manual

Operation Manual
BDN 14x50
Day / Night Binoculars
105 Sparks Ave., Toronto ON, M2H 2S5

1
This unit is a sophisticated electronic device. To operate it properly,
please read this manual carefully. Ignoring operation procedures
described in this manual will void your warranty.
•NEVER disassemble the unit. This device contains a source of high
voltage, which may be hazardous to your health.
•NEVER open objective lens of an active unit in bright light, including
daylight. In the daytime the objective lens must be covered by caps.
A tiny hole in each cap provides enough light for daytime testing.
•NEVER aim active unit at intense light sources, such as lights,
headlamps, campfires, the Moon, etc.
•NEVER reverse the polarity of a battery.
•NEVER connect the unit to external power sources.
•ALWAYS remove battery when the unit not in use for a long period.
•ALWAYS keep the objective lenses covered when not in use.
•ALWAYS store the unit in a warm dry place.
Precautions
BDN 14x50 is a sophisticated precise optical instrument equipped with
electronics. It should be handled with due care:
•Unit contains fragile components. Avoid impacts, dust, moisture and
sharp changes of temperature.
•Do not touch the optical surfaces other than for cleaning. Doing so
may damage the anti-reflection coating.
•Clean optical surfaces with professional lens cleaning supplies.
•Use only a soft clean cloth to clean the exterior of the device.
•Keep the unit away from sources of heat, such as heating appliances,
sunlight or central heating.
•Switch off the unit and remove the battery during the extended
periods of non-operation.
•Do not keep the device at temperatures higher than 60oC (140oF).
•Do not apply excessive force or pressure to the lens assembly,
movable parts and thread connections.
•Small dark and/or light points may be seen in the field of view due to
considerable optical magnification of the eyepiece. This does not
affect the operational capabilities of the device.

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FEATURES
This optical instrument utilizes unique optical scheme to that enables
observer to use the high magnification binoculars 24 hours a day,
eliminating the need for separate day and night optics.
•Day / Night round the clock model
•High magnification with large objective lens
•Rigid construction
•Weather proof, water resistant
•Wide field of view
•Easy switch between day and night modes
SPECIFICATIONS
Day Night
Magnification 14.0 5
Field of view, ° 4.7 14.7
Objective lens diameter, mm 50
Dioptric correction ±5
Typical resolution of the Image
Intensifier Tube (IIT), lp/mm 45-72
Interpupillary distance adjustment
range, mm 55-74
Operating temperature, °C -40°C to +55°C
Battery 2xAA
Dimensions, mm 235х168 х74
Weight, g 1,500

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DESIGN AND APPEARANCE
1 – Body 2 – Day / night switch
3 – Eyepieces 4 – Eyepiece dioptric adjustment knobs
5 – Battery compartment with cap 6 – Rubber grip
7 – Objective lens caps
OPERATION DURING DAY
•Unpack the unit from the soft case, trying to keep the lenses closed
by caps.
•Make sure that the switch (2) is set to “D” position.
•Remove the objective caps (7). Aim the unit to the observed object.
•The eye cups can be folded as shown below for eyeglasses wearers.

4
•Adjust the distance between the eyes by turning both eyepiece
assemblies (3) until two images converge into one. This adjustment is
made tough intentionally to provide for a water resistance.
•Adjust the focus individually for each eye using the focus adjustment
knobs (4).
•put on the objective lens caps after you finish observation.
OPERATION DURING NIGHT
•Unpack the unit from the soft case.
•If the batteries were not installed, unscrew the battery cap (5) and
install the batteries, observing correct polarity as drawn schematically
on the body (1) (“-“ towards the bottom of the compartment).
•The eye cups can be folded as shown below for eyeglasses wearers.
•Remove the objective lens caps (7). Aim the unit to the observed
object.
•Flip the switch (2) into “N” position. You will see greenish light through
the eyepieces with outlines of the observed object.
•Adjust the distance between the eyes by turning both eyepiece
assemblies (3) until two images converge into one. This adjustment is
made tough intentionally to provide for a water resistance.
•Adjust the focus individually for each eye using the focus adjustment
knobs (4).
•Put on the objective lens caps and flip the switch into “D” position
after you finish observation.