effective focal length造句
例句与造句
- In photography, depth of field ( DOF ) means an effective focal length.
- The effective focal length of the optical system may require an eyepiece with too large a diameter.
- In doing so, the overall angular magnification of the system varies, changing the effective focal length of the complete zoom lens.
- The cell spacing was also tunable, because that could be used to adjust the effective focal length, but that only worsened aberration problems.
- Similar minor effects may be present when using star diagonals, as light travels through a multitude of lenses that increase or decrease effective focal length.
- It's difficult to find effective focal length in a sentence. 用effective focal length造句挺难的
- When you halve the linear measurements on the sensor size, you double the effective focal length of the lens in terms of angle of view.
- Another price paid is that at the extreme telephoto setting of the lens the effective focal length changes significantly while the lens is focused on closer objects.
- A supplementary lens is an accessory lens clipped, screwed or bayoneted to the front of a main lens that alters the lens'effective focal length.
- It is a so-called Galilean telescope accessory mounted to the front of a lens that alters the lens'effective focal length without moving the focal plane.
- The first real " zoom " lens, which retained near-sharp focus while the effective focal length of the lens assembly was changed, was patented in 1902 by Clile.
- Note, floating elements and internal focusing produces a zooming effect and the effective focal length of an FE or IF lens at closest focusing distance can be one-third shorter than the marked focal length.
- The first true " zoom " lens, which retained near-sharp focus while the effective focal length of the lens assembly was changed, was patented in 1902 by Clile C . Allen ( ).
- For closer objects, the relationship between the paper and the lens must shift . The lens of your eye is different because its curvature can be shifted by the muscles of your eye, changing its effective focal length.
- The effective focal length is nearly equal to the stated focal length of the lens ( " F " ), except in macro photography where the lens-to-object distance is comparable to the focal length.
- The optical components of these adaptors may reduce or increase the focal length of the combination, or they may affect only the back focal distance of the combination, leaving the effective focal length for purposes of photographic composition unchanged.
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