I shot the photo with my ‘‘tornado lens.’’ I had it in mind for years to capture a tornado producing a lot of flying debris with a very fast lens, in order to ‘‘freeze’’ the debris, and render it sharp. My fast (1.4 F-stop) Nikon 50 mm lens, was the lens of choice, if I ever had the chance to shoot a tornado in a town. My (once in a lifetime?) chance came when Chuck Doswell and I intercepted the Pampa, Texas tornado on 6/8/95. You can see more views of the tornado at
www.gettyimages.com, and by using my name (Alan R Moller) in the search engine. I shot the picture you have, with the lens wide open at F1.4, and a shutter speed of 1/250 of a second.
I am very old fashioned and low tech. I continue to use film (almost always Fuji Velvia) in my 35mm Nikons, 6X7 Pentax, and 6X17 cm Fuji panoramic camera. I will eventually go digital. I know my current equipment forwards and backwards, and intend on using film until Nikon makes a 16+ megapixel camera similar to the Canon 1D Mark II, and top end digital camera prices start to drop.