TECHNICAL SUPPORT
ANGLE OF VIEW

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 following formula.
Formula for calcuation

ffocal length of lens
VVertical size of object
HHorizontal size of object
DDistance from lens to object
vvertical size of imagesee 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

For example