Angle of View Calculation

Angle of View (Formula for Calculation) Formula for calculation Examples a) In case of vertical size b) In case of horizontal size Formula for calculation It is important to know the angle of view of the lens to take in the object. Angle of view changes with focal length of lens and image size of camera. The focal length to cover the object can be calculated from the next formula. f : focal length of lens V: Vertical size of object H: Horizontal size of object D: Distance from lens to object v : vertical size of image (see the following table) h : horizontal size of image (See the following table) Format 1 inch 2/3 inch 1/2 inch 1/3 inch v 9.6mm 6.6mm 4.8mm 3.6mm h 12.8mm 8.8mm 6.4mm 4.8mm Examples a) In case of vertical size 1/2 inch camera Vertical size of object Distance from lens to object substitute these data to formula (1) v=4.8mm V=330mm D=2500mm b) In case of horizontal size 1/2 inch camera Horizontal size of object Distance from lens to object substitute these data to formula (2) h=6.4mm H=440mm D=2500mm

 Other Items from Lens Selection Guide

  Angle of View Calculation - 
  Video Drive or Direct Drive - 
  Field of View Samples - 
  Focal Length - 
  35mm to CCTV Conversion Chart - 
  Auto or Manual Iris - 
  C or CS Mount - 
  Camera/Lens Format - 
  Depth of Field - 
  F Stop -