Features:
alloy frame design, the front of the frame with thread which can be mounted lens cover and other accessories at any . 
passing filters are commonly used in infrared photography to pass infrared and block visible and ultraviolet . 
The rotating outer 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 due to the high sensitivity of sensors to near-infrared . 
Convenient and portable, you don't have to carry a bunch of filters for shooting. Just filter, gives you from the 530nm to 750nm freely.

Specification:
Brand: Fotga
Material: Alloy + Optical
Wavelength : 530nm - 750nm
Caliber: 62mm/67mm/72mm/77mm/82mm(optional)

Package List: D10793-77
1 * Infrared Filter
1 * Storage Box