Nikon D800 | Tokina AT-X 16-28mm F2.8 Pro FX | ISO 400 | 1/640 sec | F2.8 Photo: Abby Ferguson Understanding shutter speed, aperture and ISO can be overwhelming for beginner photographers. Even once ...
The aperture is made up of mechanical blades that increases or decreases in size depending on the aperture you select. In humans, the iris is a thin, circular structure in the eye, responsible for ...
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