B+W 39mm IR Dark Red (092) Filter

The B+W 39mm IR Dark Red (092) Filter is used for infrared photography with digital cameras and specialized infrared films. This nearly opaque filter blocks all visible light up to 650nm, lets 50% of radiation pass between 650 and 700nm, and more than 90% of radiation pass between 730 and 2000nm. Infrared film sensitivity is rarely greater than 1000nm, so this filter essentially allows most perceivable infrared radiation to be transmitted. Due to the nature of infrared photography, the filter factor for this filter is highly variable and depends largely on your film sensitivity and lighting conditions.

B+W filters are constructed from high quality Schott glass for increased optical clarity and color fidelity. They feature a brass filter ring for durability as well as jamming prevention.