092 Infrared Filter Dark Red 695 The almost black, in front of a light source but dark purple B+W 092 infrared filter 695 blocks the visible light up to 650 nm, and only just under 700 nm it lets 50% through (hence the dark red colour). For 730 nm to 2,000 nm, the transmission is over 90%, so very high. This allows you to take pictures of pure red and infrared images. This IR filter is suitable for most digital cameras. - For experimental photographs - Image results with extremely high black and white contrasts - Green foliage is reproduced bright white - Made in Germany Digital cameras usually have a built-in IR-cut filter in front of their image sensor, but the existing residual sensitization can be used for infrared recordings. This is exactly the gap that the B+W 092 infrared filter 695 and B+W 093 infrared filter 630 take advantage of when the visible light is blocked. The selection of the image section and the infrared-related focusing are done before screwing on the filter, as control in the viewfinder or on the LCD is not possible with the infrared filter attached. The result is creative infrared photos with a fantastic "wood effect" (white foliage) and the typical dark sky. In the image program, IR photos are optimised: contrast automatically or increased in histogram. Convert a colour image to SW or "play" with individual colour channels, the red channel remains at maximum. Infrared photography always has an experimental character.