An aperture is a lens opening that controls how much light reaches the security camera sensor. Auto iris adjustment controls aperture size, and a series of f-stop numbers dictate how much light passes through the lens. The size of the aperture will also affect the depth of field.

Get Free Video Surveillance Systems Quotes!

Special Report!

How to Choose the Right Security Camera 2nd Edition

The comprehensive guide has a strong focus on IP Technology.  Get your free download now!

Expanded with additional quick view charts, updated selection survey and mounting examples.

Enter your name and email below and we will send it right over!

Have a Question?

Please note that all fields followed by an asterisk must be filled in.

lens with large and small aperture

See also Auto Iris, Depth of Field, F-stop.

New! Comments

Leave your comments in the box below.

Get FREE home security quotes now!

Just fill in the form below.