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Night Vision Monocular Dedal-45. Gen. II+. Brand new.

Long range of vision (250-400 m - at low levels of light exposure and 100-250 m
for no-light situations with Dedal's IR illuminator)
Effective use under Star Lights (10E-3 Lk)
Automatic brightness control
Manual brightness control for optium situation of the surveillance
Protection against excess of a general level of light/lateral/dot light source
High quality especially night optics (F/1.5)
Internal focusing of an objective
Interchangeable eyepiece lens: binocular or monocular
High quality of the photos and image on all field of the screen
Built-in powerful (75mW) hazard-free IR illuminator with adjustable power (10, 25, 75mW)
Built-in tripod socket
Low power consumption
Light weight

Features

Special Light-powerfull optics
Automatic brightness control
Adjustable interpupillary distance
IR-on indicator
Low battery indicator
Automatic high-light cutoff
Built in IR illuminator 75mW (940nm)
Waterproof
Extremely light weight

Technical characteristics
General

Magnification , x                4.4
Field of view, degree            10
Obiective lens                   100mmF/1.5
Eye relief distance, mm          45
Diopter setting                  +3,-4

Overall dimensions, mm           210x76x93
Weight, kg                       1.1
The power supply                 battery of a type AA 2 pc
Feed voltage, V                  3
Battery life, h                  50 - 70

Image intens. tube

Type tube                       Gen. II, 25mm MCP
Photocathode
sensitivity, µA/Lm              230-300
Gain                            35000
Resolution, lp/mm               45

Conditions of the work

Relative humidity, % to 98
Operating temperature -40°C to +50°C

Condition:

Item in NEW condition.

Night vision basis

How to buy a nightvision equipment
(some recommendations to the customer)

The task of choosing a high quality night vision unit that satisfies your requirements
and budget is never easy. Stores and catalogues offer several types of night vision units
made by different manufacturers. Simple reading of the registration certificates may not
give sufficient understanding of the available selection because sometimes manufactures
exaggerate real specifications of the equipment (sometimes in 5–100 times) and aggressively
advertise their product without a clear explanation of all technical data to the customer.

Not claming the completeness of this article, we hope that it will help you to choose a
nightvision device of the most suitable type.

Every nightvision device (NV) works on the principle of multiplying the brightness of
the image in the wavelength of visible and near-visible infrared light. The unit contains
an objective lens, light amplification tube with the high voltage power supply, and the eye -glass.
Light (starlight for example) reflects from the object to be viewed, passes though the objective
lens and creates an image on the photo cathode of the light amplification tube. Inside of the light
amplification tube, the light is electronically amplified and projected as a yellowish green glow on
a screen that is then seen by the viewer. The two most important characteristics for the NV are the
characteristics of the NV tube and optics of the unit. Internationally accepted terminology classifies
the NV tubes in I, II, or III generation (with certain intermediate levels of I+ and II+ gen.).

Generation II

The construction of the Gen. II tubes differs from the Gen. I+ by using a special
electron amplifier — the micro channel plate (MCP).

The performance characteristics of such NV tubes are: a higher photo cathode sensitivity of 240 mA/lm,
with the resolution of 32–38 lp/mm. The lifetime of these tubes is designed to be not less than 1 000–3 000 hours
of operation. Two types of NV tubes with micro channel plates (MCP) are currently available: the 25mm and 18mm ones.
From the users prospective the larger diameter is more efficient but also requires larger NV unit.
In this category, «Dedal» manufactures a multifunctional NV Scope — the «Dedal- 45» and series of rifle scopes «D- 300».
All of the above mentioned units are equipped with an additional manual brightness control that allows the
viewer to adjust the scope for the optimal gain/noise ratio.
Generation II+

With a light gain of 25 000–35 000 the Gen II+ tubes have photo cathode sensitivity of 240–600 mA/lm and are
sensitive to light in the infrared spectrum. Resolution is 39–45 lp/mm. Work capasity of the tube is estimated to
be 1 000–3 000 hours. Since the Gen. II+ tubes are smaller (they do not have a speed up chamber) they have a slightly
lower light amplification than the Gen. II. Yet due to the especially high sensitivity in the IR spectrum the Gen. II+
units have better viewing distance in the open space. If the main task for the unit is photo or video recording,
the Gen II NV unit should be chosen due to its higher light gain. NV units with the Gen. II+ tubes are equipped with
automatic gain control, flash protection, protection from the side light distortions and feature a high quality image
throughout the entire field of view. Units equipped with Gen. II+ tubes are used by the armed forces of many countries
and considered to be of professional quality by the experts.

Seller ships internationally. Buyer pays fixed only $35 shipping and handling to any country (worldwide). Viewer will be shipped by REGISTERED Airmail from Russia (10-14 days to the UK). Viewer will be carefully packed in strong box.
Payments for me: PayPal.
I will provide payment info by email at the end of the auction.

Postage and packaging

Item location: Moscow, Russian Federation

Dispatches to: Worldwide

Change country:	Postcode:

Postage and packaging	To	Service	Estimated delivery*
US $35.00	United Kingdom	Standard Int'l Flat Rate Postage	varies for items dispatched from an international location

*The estimated delivery time is based on the seller's dispatch time, the postal service selected, and when the seller receives cleared payment. Sellers are not responsible for shipping service transit times. Transit times may vary, particularly during peak periods.

Return policy

The seller will not accept returns for this item.

Sellers may be required to accept returns for items that are not as described. Learn more about your rights as a buyer.

Payment details

Payment method	Preferred/Accepted	Buyer protection on eBay
	Accepted

Seller's payment instructions

For PayPal payments please use moscowphoto@aport2000.ru. The item will be shipped from Russia. Please allow up to 14 business days for the delivery.