6.5mm Optical AR-IR CUT filter AR/IR Blocking filter for camera lens M12 etc

Used them to cut IR from my green lasers, to make them safer.

Contrairement à ce que laisse penser la photo, je n'ai reçu que deux lentilles pour 9.99€ et non 70 lentilles!

I was treating material with UV light, but my UV source also heated the material and ruined the effect. Since my UV beam was narrow, I was able to pass it through this IR cut filter. I was happily surprised that I could eliminate most of the heating with this one simple action when using this filter. I don't know where the heat went because when I took the assembly apart this filter was warm but not hot. Maybe it dissipates heat quickly, or maybe it took me too long before I tested. Take care to hold only be the edges. At about 3/8" diameter this can be challenging. Use clean disposable gloves, and don't scratch the surfaces.

赤外線LEDが発した赤外線はちゃんとカットされた。サイズも説明通りだった。 ただし、自分の激安カメラでは画像が青くなってしまって使えなかった。

Cut offs as advertised, nice and sharp. They need to update the specs on % Trans for <400 cut off or I couldn't find it. They have it for >700nm. To help reduce even more I stacked 2 of them. They are useful for the planned camera applications but also for amateurs using spectrometers looking for ways to evaluate scatter. If they could I would like to suggest another product -- 360-830nm corresponding to the range used in chromaticity calculations. It may be a niche market, but I am sure that some may appreciate being able to simply use a filter for both reducing scatter by reducing the wavelength window and expanding the range over this product for better evaluations for the x,y and other color parameters. Great filters. Well worth it.