For example, with the 35 mm lens shown above set to f / 11, aligning the infinity mark with the'11'to the left of the index mark on the DOF scale would set the focus to the hyperfocal distance.
22.
When the subject is at the hyperfocal distance or beyond, the far DOF is infinite, so the ratio is 1 : "; as the subject distance decreases, near : far DOF ratio increases, approaching unity at high magnification.
23.
The oft-cited rule that 1 / 3 of the DOF is in front of the subject and 2 / 3 is beyond ( a 1 : 2 ratio ) is true only when the subject distance is 1 / 3 the hyperfocal distance.
24.
The concepts of the two definitions of hyperfocal distance have a long history, tied up with the terminology for depth of field, depth of focus, circle of confusion, etc . Here are some selected early quotations and interpretations on the topic.
25.
The " hyperfocal distance " technique makes as much as possible " acceptably " sharp so that the photographer is freed up even further, from not having to consider the subject's distance, other than not being too close.
26.
:: Nothing like that has an unlimited depth of field, as far as I know, but if everything you are interested in is beyond the hyperfocal distance then you can just keep the sight focused at infinity and everything will be in focus.
27.
Their focal range is about 1000 times their aperture diameter, so it makes sense as a hyperfocal distance with CoC value of " f " / 1000, or image format diagonal times 1 / 1000 assuming the lens is a normal lens.
28.
The hyperfocal distance is the nearest focus distance at which the DOF extends to infinity; focusing the camera at the hyperfocal distance results in the largest possible depth of field for a given f-number ( Object field methods above for a rationale for doing so.
29.
The hyperfocal distance is the nearest focus distance at which the DOF extends to infinity; focusing the camera at the hyperfocal distance results in the largest possible depth of field for a given f-number ( Object field methods above for a rationale for doing so.
30.
For example, on the Minox LX focusing dial there is a red dot between 2 m and infinity; when the lens is set at the red dot, that is, focused at the hyperfocal distance, the depth of field stretches from 2 m to infinity.
