Jackee Jing in the Montreal Botanical Gardens - Infrared & Visible Blue light [Tiffen 47]F/8.0, ISO400, 31mm, 1/30thCanon 17-40mm f/4.0L & 77mm Tiffen 47 filterShot with a full-spectrum-converted Canon 5Dmk2 (Spectrosil 2000): The "Tiffen 47" filter, like an "r72", passes infrared ~720nm and longer, but interestingly also passes visible blue light of ~500nm and shorter. This gives both a blue sky and the typical infrared effect, without requiring channel swapping. I've created a graph below displaying the which parts of the spectrum are passed by this filter. There are two transmission windows; one in the visible blue, and one in infrared. Full-resolution [5616x3746] 4K resolution [3840x2160] WQHD resolution [2560x1440] 1080p resolution [1920x1080]I'm an admin over at, the largest and oldest infrared photography group on Deviantart! Check them out for more infrared photos!