It’s a bird, it’s a plane, no it’s…. actually, I can’t make out what that is. Have you ever reviewed your CCTV camera footage and found yourself dismayed at the picture that was recorded. What did you chalk it up to? Just as poor equipment, harsh environment, or bad lighting? Did you know that one of the most common errors is not choosing the correct camera with the right lens? Despair no longer, as our intuitive CCTV Lens Calculator will help you bring everything you need into perspective.

How to calculate: Choose the size of the CCD you will be working with. Next input the distance of your target. Then enter in the desired width of view. Finally press Calculate Lens and find your calculation in blue below.

CCTV Lens Calculator

Size of CCD
Distance to Target
Width of View

Lens Required

0.8 mm


Before delegating what camera to buy or how many, stop to think about what is most crucial to your needs. Are you installing a Security Camera System as a preventive measure? Is it as an answer to watch and catalogue a record of events, either home or business? Is it a retaliation move to show you will no longer be a victim unwittingly in your absence? Or are you seeking that peace of mind remote viewing and recorded documentation brings? Asking yourself can help you better strategize your angle of interests and focus on the importance of the task at hand. Here are some key points that might help you achieve this mindset:

I. What are the possible points of entry of the business, development, or home (Don’t forget about the best escape route for a perpetrator to escape the scene from)

II. Would license plate captures benefit you in the occurrence of an event

III. How many entrances and exits are there near high priced inventory

IV. Are there any high traffic areas (such as check-in desk, drive thru, register, driveways etc.?)

V. Where have past break ins or criminal activity occurred

VI. Where do children mostly congregate

VII. Where has the vandalism mostly taken place

VIII. What areas could prove to be potentially hazardous (such as pools, playgrounds, stairs, gym equipment etc.?)

IX. What are areas that are annoying/illegally violated (such as dumpsters, parking spaces/lots, private property, etc.?)

X. Where are people more susceptible to be preyed upon like schools, parking lots, playgrounds, after hour bars, strip clubs, concert stadiums, public transportation waiting terminals, etc.?


NOTE: These calculators are provided for general information only and are not intended as a substitute for professional consultation. We advise you to call us if you have any question as to the accuracy of this information, or if you need help interpreting this information. Security will not be held liable for damages resulting from the use, misuse or unlawful use of the information contained herein.