Hyperfocal Distance
Find the hyperfocal distance to maximise sharpness from near to infinity.
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Focus at the hyperfocal distance H = f² ÷ (N·c) + f and everything from H/2 to infinity is acceptably sharp.
Focus at the hyperfocal distance H = f² ÷ (N·c) + f and everything from H/2 to infinity is acceptably sharp.