Sightron IR640 Pro II IR Pass Filter 

Japanese-made IR-pass filter.

Fully blocking below 640nm. 

Steep cut-off line & high transmission rate. 

Technical Specifications

Glass thickness: 1.5mm

Glass type: Fused Quartz

1.25″ mount size : UNF 1 1/8″-48 (equivalent to 28.575mm/P0.529)

2″ mount size: M48/P0.75

In the Box

-Sightron IR640 Pro II IR Pass Filter 

Warranty & Manual

Sightron Japan Warranty