Cold Harbour NVG Daytime Training Filter (DTF)

The Cold Harbour NVG Daytime Training Filter (DTF) opens up the opportunity to train with NVGs during the daytime, in more locales and environments. Instructors and supervisors can instruct and observe in lit conditions with a full field of view and visibility, while operators can experience simulated darkened conditions. The DTF is compatible with most night vision devices that use PVS-14 pattern optics (eg, L3 BNVD-1531, DTNVS, Katana, Manticore, MH-1, RNVG, RPNVG, RNVG-A, etc)

The DTF improves over legacy pinhole covers in two ways:

• Pinhole covers reduce the depth of field, making everything in focus. This is not an accurate representation of actual nighttime NVG use, where distant objects are in focus and close objects are blurry. The DTF portrays the correct depth perception, leading to more effective training.
• The DTF securely threads onto the objective lens of your NVG and does not easily pop off during strenuous movements, vibration, or impacts

This filter is offered in 2 levels:

Level 1 - For NNVT, Photonis ECHO/ECHO+ and other Gen2+ image intensifiers, Level 1 DTFs can be used indoors in average-lit rooms but will appear as if the lights are off. Not recommended for outdoor use. 

Level 2 - Recommended for Photonis 4G High Gain and Gen 3 image intensifiers, Level 2 DTFs cut out even more light to simulate extreme low light conditions. Level 2 DTFs are able to be used outdoors in cloudy or overcast conditions and will simulate a moonlit night. When used in average-lit rooms, the Level 2 DTF will simulate extremely dark situations.


4G High Gain tubes are ideal for DTF-2 Level 2 filters. 


The DTF in outdoor use simulates a full moonlit night on a sunny day (not recommended for full sun use).

STACKED PROTECTION
The DTF can be stacked behind your protective polycarbonate lens protector for Force on Force applications and multi-hit ballistic protection. The DTFs alone is made of glass and NOT impact resistant. 

For the best experience, it is advised that operators equip their NVGs with rubber eye cups to block out peripheral light. 

Sold as singles. For binocular devices, buy two. 

Compatibility: Tested to function on Noctis/Fujinon Objective lenses, Edmunds lenses, Qioptic lenses All RPO Objective lenses, Photonis Defense Boomslang Lenses, Steele Industries PVS-14 Standard Lenses, Optronics Engineering Objective Lenses

NOTE: Please exercise proper use of the night vision device to avoid damage in lit environments. Treat as if night vision is being used in standard mixed lighting environments. CHS does not assume any responsibility for improper use or installation of the DTFs and potential damage to the intensifier tube. Filters are not designed for use in direct sunlight or with lasers.