How to find the camera dead ends
This area is a little content is also basically invalid. You can understand this: he is absolutely below the corner, there can be their own myself, its perspective (apply medical biology in the term) and then do a isosceles triangle, the vertex is the camera, do this triangle vertical , That is, right triangle, and then you even if it is estimated that junior high school students will be considered! living comfortably without anybody's help!
Professional is this: from the camera's lowest vertical angle and 45 degrees direction of the corner shot to the ground for the vertex to draw a square to the corner, for most of the camera is within the square of the collection area is invalid, basically applicable to The market of 90 percent of the camera, very few high-value professional equipment, except, even if the square of the two sides can sweep the image of the place has been seriously deformed, there is no legal effect, this has been in court there are numerous cases
You see him in front of a lens! In front of the camera up and down about 80 degrees outside the corner are monitoring dead ends, the greater the number of the largest number of lens lens farther, the smaller his angle, dead on the big. Adopt it!
