The Tiffen 49mm #87 Infrared Glass Filter is for black and white infrared film when you only want to transmit the infrared spectrum and none of the visible spectrum.
Tiffen, a leader in the filter industry, proudly makes its filters in the USA and backs up its products with a solid 10-year warranty.
Note:
Prior testing is recommended
Requires testing for exact exposure
For black and white infrared film only
UPC: 049383025453