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Sightmark Eclipse 4x50 Night Vision Monocular

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The Sightmark® series of Eclipse™ Night Vision Monoculars are multifunctional optics inspired by military and law enforcement applications. The Eclipse 4x50 Night Vision Monocular features a high light gathering capacity and an impressive magnification, making it perfect for observing moving targets at varying distances. A built-in IR illuminator extends viewing capabilities even farther, and is practically invisible to both animals and humans. Its advanced interior electronic system, designed to extend the operation time of the unit, gives the monocular up to 72 hours of constant battery life. With all these features and included accessories, the Eclipse 4x50 Night Vision Monocular is a must-have for any recreational excursion or professional nighttime function.

Protected by a three-year warranty on the tube and Sightmark’s Limited Lifetime Warranty on the housing, the Eclipse 4x50 Night Vision Monocular is engineered to meet the highest requirements and standards of the serious night vision user.


  • Built-in IR illuminator
  • Automatic Shutoff when Exposed to Bright Light
  • Internal Diopter Adjustment
  • Durable rubber body
  • Tripod adapter
  • Operates using (2) AAA batteries
  • 72 Hour Operating Time (w/o IR Activated)


Generation 1 Tube Type EP33-U
Photocathode Type S25 Multi-Alkaline Photocathode Integral Photocathode Sensitivity, μÀ/lm , typical 200
Useful photocathode diameter , mm 24 Resolution, lines per mm 36
Max. detection range of an object measuring 1.7x0.5 m in natural night conditions (0.05 lux, quarter moon). m/yd 180/197
Product Specifications Optical Characteristics
Magnification, x 4 Objective Lens diameter, mm 50
Field of View, degrees 15 Field of View, m@100m 26
Field of View, ft@100yd 78 Min. focusing distance, ft 3.2
Min. focusing distance, m 1 Eye Relief, mm 12
Diopter adjustment, dptr. ±5
Product Specifications Power Supply
Power Supply, V 3 Battery Type 2xAAA
Battery Life, hour (with/without IR) 20/72 IR Illuminator Power, mW 75
IR Illuminator Wavelength, nm 805
Product Specifications Physical and Operational Characteristics
Lens Material Glass Body Material Plastic ABS
Tripod Mount, inch 1/4 Operating Temp,°C/°F -20 to 40 / - 4 to 104
Waterproof Rating IPX3 Dimensions 142x86x58
Weight, oz 11.9




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Returns Policy

You may return most new, unopened items within 15 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


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