CCTV Lens Selector

Field of view calculator will help you in detemining which lens is right for your application.

Lens Size Calculator

  1. Select The Sensor CCD size.
  2. Enter the distance to the target
  3. Enter the width of view required.
  4. The lens size required will be shown below.
Lens size needed (focal length) mm
Field of View °(Degrees)

Field of View Calculator

  1. Select The Sensor CCD size.
  2. Select the Lens size.
  3. Enter the distance to the target.
  4. The field of view will be shown below.
Target Width
Target Height
Field of View °(Degrees)

The calculators above give a guide to the expected field of view.

TLC Code Description Lens
TS IRCAM20 Day / Night 3.6mm
TS IRCAM100 Day / Night 6.0mm
TS IRCAM500 Day / Night 4mm - 9mm
TS IRCAM1000 Day / Night 5mm - 50mm
TS IRDOME Day / Night 4mm
TS IRDOMEXT Day / Night 6.0mm
TS DLC Downlighter Camera 4mm
TS COVC Covert Clock 3.6mm
TS COVP Covert PIR 4mm
TS COVS Covert Smoke 5mm