8x10 film, done with Kodak 2D and 9" B&L Cinephor projection lens (a modern Petzval lens, approx. f-3.8). Manual shutter of about 1/4 second (?). It metered under reflected CF bulbs at 1/8 second and I basically removed and replaced the lens cap as fast as I could without jarring the camera.
Efke 820IR shot as straight BW (= no red filter). Developed in Rodinal 1+50 in a drum for 8.5 minutes.