What does 1.4 mean on a lens?
A lens that has a maximum aperture of f/1.4 or f/1.8 is considered to be a “fast” lens, because it can pass through more light than, for example, a lens with a “slow” maximum aperture of f/4.0. That’s why lenses with large apertures usually cost more. Thereof, Is Canon 50mm 1.4 good for portraits? portraits […]
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