The 43mm, 665nm Pro Infrared Lens Filter from Kolari Vision is a circular filter with 43mm threading on both sides. This pro edition features multicoated glass in a brass ring with knurled edges. Usage requires a full spectrum modification be made to your camera in order to function properly. Users must manually remove the camera's low-pass filter and replace it with a clear filter. Once that's done, this 665nm filter will work as intended to block visible light up to 665nm from the light spectrum.
Note:
A full spectrum modification is required to be made to your camera.
UPC: 745808930486