FOTGA 77mm Adjustable Burgundy Filter IR Pass X-Ray Lens Filter Variable from 530nm to 750nm Compatible with Canon Nikon Sony DSLR Camera

aluminum alloy frame design, the front of the frame with thread which can be mounted lens cover and other accessories at any time. IR passing filters are commonly used in infrared photography to pass infrared light and block visible and ultraviolet light. The rotating outer ring of the filter can adjust the wavelength arbitrarily, which can be changed from 530nm to 750nm. Widely used in solid-state (CCD or CMOS) video cameras to allow IR due to the high sensitivity of m