IR-pass filter. Fully blocking below 640nm.
- Glass thickness : 1.5mm
- Glass type : Fused Quartz
- Steep cut-off line & high transmission rate
- 2″ mount size : M48/P0.75
- 1.25″ mount size : UNF 1 1/8″-48 (equivalent to 28.575mm/P0.529)*
- Made in Japan
* It might not allow to fully turn to M28.6/P0.6 threads. It depends on the machining variation.