What does it mean when a lens is described as f5.6 or f1.8? How does this relate to an aperture number of the same value? - Quora
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What does it mean when a lens is described as f5.6 or f1.8? How does this relate to an aperture number of the same value? - Quora
Re: If my prime lens aperture is f/1.8 does it mean the best quality comes with f/1.8?: Beginners Questions Forum: Digital Photography Review
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