CCTV Glossary U to Z
- Varifocal Lens
- A cctv camera lens whose focal length / viewing angle can be manually
adjusted to suit the camera view required. Typical Vari Focal lens lengths are: 2.5mm-10mm, 3.5mm-8mm, 5mm-50mm - Video Splitter
- CCTV device that splits the video signal from a camera (or cameras) so
it can be used more than once. - Zoom Lens
- A lens which has variable focal lengths. The image can be 'zoomed' in
or out whilst the view of the camera remains in focus.