hen I started to learn photography seriously over 50 years ago, the very basics were exposure and focusing. Cameras then had three controls. One was the focus control while the other two, the aperture and shutter speed controls, together controlled the exposure. ‘Exposure’, I learned, meant the amount of light projected onto the film, defined as the illuminance at the film multiplied
Professor Newman on… Detriangulation
Jan 21, 2023
2 minutes
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