Lens Calculator

Name: Uniworld Security Solutions
Address: Your Street Address, Patna, Bihar, 800001, IN
Telephone: +91-XXXXX-XXXXX
Price range: ₹₹

Tools

Find the focal length your camera lens needs and how many pixels per foot the scene will carry.

Image sensor

Resolution

Distance between camera and object (in ft.)

Width of field of view (in ft.)

Focal length (in mm.)

8.37

PPF / PPM

160(525 ppm)

Good to know

Focal length = sensor width × distance ÷ field of view width.
PPF (pixels per foot) tells you how much detail you get — more is better for identification.
As a rough guide: 25 PPF for detection, 60 PPF for recognition, 120+ PPF for identification.
A shorter focal length gives a wider view; a longer focal length covers more distance.