1 景别 演員與鏡頭 的 焦距 透視与構图 01:53 直观感受镜头焦距对视角的影响 16mm to 135mm 01:31 相机镜头透视和变焦镜头 camera lens perspective and zoom lenses 04:41 镜头透视训练教程视野视角 Lens Perspective Training Tutorial _ Field of View _ Angle of View 09:58 The Truth About Lenses and ...
A zoom lens includes: a first lens group including a negative lens, a positive lens, and a positive meniscus lens having a convex surface on an object side; a second lens group including a negative lens and a cemented lens composed of a double-concave lens and a positive lens; a third ...
Add More Cameras Zoom Sort Sorting options. View & Options Add at least one camera to enable display options. Begin by adding cameras using the search box highlighted in green. Once you have added atleast one camera, you will be able to change the zoom level and select your preferred...
Zoom lens, still image camera comprising the zoom lens, and video camera comprising the zoom lens Provided from the object side are a first lens group ( 11 ) having a positive refracting power and fixed to the image plane, a second lens group ( 12 ) having a negative refracting power ...
PROBLEM TO BE SOLVED: To provide a zoom lens in which distortion aberration on a short focal distance end and magnification chromatic aberration, etc., are compensated well, whose entire length is short, and which has power variation ratio of ≥2.5. ;SOLUTION: In this zoom lens which is...
We focus on the problem of adding computer-generated objects in video sequences that have been shot with a zoom lens camera. While numerous papers have been devoted to registration with fixed focal length, little attention has been brought to zoom lens cameras. We propose an efficient two-stage...
摘要: Camera systems with zoom lenses are inherently more useful than those with passive lenses due to their flexibility and controllability. However, their calibration raises several challenges. In this paper, we present a neural framework for zoom-lens camera关键词:...
结果1 题目A camera with a zoom lens can ___ the subject. A. enlarge B. move C. rotate D. color 相关知识点: 试题来源: 解析 A。解析:zoom lens 变焦镜头可以放大或缩小拍摄对象。不能移动、旋转或改变拍摄对象的颜色。反馈 收藏
A zoom lens camera in which variable power lens groups are moved in an optical axis direction of a zoom photographing optical system to vary the focal length thereof by a rotatable cam ring. A converter lens is provided to vary the focal length of the zoom photographing optical system. The ...
according to a difference of the distances in the radial direction from the rotation center of shafts of individual lenses of the lens group, the shafts fitting in grooves of the disk and driving the individual lenses of the lens group in order to perform variable power of a zoom viewfinder....