hyperfocal distance造句
例句與造句
- Some cameras have their hyperfocal distance marked on the focus dial.
- This makes a bigger circle of confusion and smaller hyperfocal distance.
- The hyperfocal distance is the closest distance at which a objects at infinity acceptably sharp.
- The hyperfocal distance is entirely dependent upon what level of sharpness is considered to be acceptable.
- You're conveniently forgetting about half of the plane " not " beyond the hyperfocal distance.
- It's difficult to find hyperfocal distance in a sentence. 用hyperfocal distance造句挺難的
- Focusing on the hyperfocal distance is a special case of zone focusing in which the far limit of DOF is at infinity.
- Thomas Sutton and George Dawson define " focal range " for what we now call " hyperfocal distance ":
- When the subject is at the hyperfocal distance or beyond, the far DOF is infinite, and the near : far ratio is zero.
- When the subject distance s is small in comparison with the hyperfocal distance, the second term in the denominator can be neglected, leading to
- When the lens is focused at this distance, all objects at distances from half of the hyperfocal distance out to infinity will be acceptably sharp.
- Most models have a fixed focus lens, set to the hyperfocal distance of the maximum aperture of the lens, often at around 10 meters ( 30 ft ).
- If the camera lens is focused at or beyond its hyperfocal distance, then the depth of field becomes large, covering everything from half the hyperfocal distance to infinity.
- If the camera lens is focused at or beyond its hyperfocal distance, then the depth of field becomes large, covering everything from half the hyperfocal distance to infinity.
- As the hyperfocal distance is the focus distance giving the maximum depth of field, it is the most desirable distance to set the focus of a fixed-focus camera.
- Using p for hyperfocal distance, D for aperture diameter, d for the diameter that a circle of confusion shall not exceed, and f for focal length, he derives:
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