Setting The Standard
In The Industry

DigiGuard Security will provide your security system dealership with state of the art systems and a plan that will increase your customer base, thus increasing your profits substantially.

Home
Our Company
Dealer Plan
Apply
Login
Academy
DVR Features
DVR Specs
Shipping Policies
Marketing Resources
Leasing Information
Installation Information Privacy Statement
Contact Us
Sitemap

: HOME : OUR PLAN : ACADEMY : EQUIPMENT : MARKETING : SITEMAP :

System And Installation Academy

DigiGuard Security
Systems FAQ

Lens Angle Comparison...

The following displays a comparison of a CCTV lens with the regular
135mm film camera lens.

CCTV lens		135mm lens
focal length	Angle	Angle	focal length
2.5mm	120°	114°	14mm

CCTV lens		135mm lens
focal length	Angle	Angle	focal length
3.6mm	92°	94°	20mm

CCTV lens		135mm lens
focal length	Angle	Angle	focal length
4.3mm	78°	75°	28mm

CCTV lens		135mm lens		Standard lens for 135 mm camera
focal length	Angle	Angle	focal length	Regular angle of our eye's vision
6.0mm	53°	51°	45mm

CCTV lens		135mm lens
focal length	Angle	Angle	focal length
12mm	25°	24°	100mm

CCTV lens		135mm lens
focal length	Angle	Angle	focal length
25mm	18°	18°	135mm

: HOME : OUR PLAN : ACADEMY : EQUIPMENT : MARKETING : SITEMAP :

© Copyright 2005 - 2008, Inspirational Marketing;;ting;