Specialist portrait lenses tend to have even wider maximum apertures (from f/1.4 to f/2.8) in order to blur backgrounds further. Learn more: The A to Z of Photography: Aperture 3.

If it's reach you want, the Canon RF 200-800mm F6.3-9 IS USM is the obvious choice for most wildlife photographers. With the ...

This article was originally published with the title “ Motion-Picture Portrait Photography ” in Scientific American Magazine Vol. 119 No. 2 (July 1918), p. 28 doi:10.1038 ...