The Nitecore NFR25 Red Filter is an optical accessory designed to fit compatible Nitecore torches with a 25.4mm bezel diameter. It is designed to enhance night vision, preserve natural eyesight and provide red filtered light output in low-light conditions.
Night Vision and Reduced Visual Strain
The red filter produces a soft, low-glare beam that helps preserve night-adjusted vision and reduce visual strain during dark-environment use.
It can be used for:
- Map reading
- Wildlife observation
- Low-light tasks requiring reduced visible light output
Optical Lens Construction
The NFR25 features a double-sided mineral-coated glass lens designed for:
- High light transmittance
- Heat resistance
- Clear light output without distortion
Flexible Rubber Frame
The frame is made from high-strength rubber and is designed to fit torch heads up to 25.4mm in diameter.
It also provides:
- Impact resistance
- Secure attachment to compatible torches
Practical Design
The filter includes a lanyard attachment hole for carry convenience.
When the lens is removed, the frame can also be used as a bezel protector.
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Nitecore 25.4mm Red Filter NFR25
$9.95