Hyperfocal Distance, Depth of Field and the Circle of Confusion. The hyperfocal distance is the precise focus distance at which depth of field is maximised for a given aperture and focal length combination. It's much used in landscape photography to gain a full "through the scene" sense of sharpness.To get more mathematical, if you're using a 50mm lens at f/1.8 and photographing something at 4 feet, your depth of field will be around 1.5 inches deep. But if you photograph that same subject from 10 feet, you will have a depth of field of just under 10 inches deep. Shot at 2ft with a 35mm lens at f/1.4. Shot at 9ft with a 35mm lens at f/1.4. First, the depth of field would extend to infinity. Second, everything beyond 1/2 the focus distance (everything beyond 5 feet in this case) would be sharp. According to the depth of field scale for the G2 lens, the actual depth of field is 3 feet to infinity for the 8mm lens set to f/8 and focused at 10 feet. The hyperfocal distance is 4.5 feet.
The Depth Of Field component applies a depth of field effect, which simulates the focus properties of a camera lens. In real life, a camera can only focus sharply on an object at a specific distance; objects nearer or farther from the camera are out of focus. The blurring gives a visual cue about an object's distance, and introduces Bokeh
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