Aper­ture

Photo Plus - - A-Z Guide -

The open­ing in the lens that re­stricts how much light reaches the im­age sen­sor. In all but the most ba­sic cam­eras, the size of the aper­ture is ad­justable. The aper­ture set­ting used plays an im­por­tant role in both ex­po­sure and depth of field.

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