September 2, 2011

Bullet Security Camera

There are basically three types of digital video cameras: 1) The dome camera; 2) The box camera; and, the bullet security camera. In this article we are going to focus our attention on the bullet security camera.
November 29, 2009

What is a Varifocal Lens?

For the novice, security cameras choices may seem confusing. One question often asked by customers is what is a Vari-Focal Lens? There are two basic types of CCTV lenses. You can either get a fixed lens, or a vari-focal lens. A fixed lens has a set aperture that cannot be changed. They can be used […]