Specifications

30 THE PROFESSIONAL CHOICE VISTA AT A GLANCE
LENSES IR CORRECTED
COMPARISON BETWEEN IR CORRECTED AND NON-IR FOCAL PLANES
When using IR light installers often have a problem with out of focus images at night. This is because of the differing
wavelength between IR and visible light, resulting in the images see below.
Using Vista IR corrected lenses will result in a sharper image
A standard lens would give a blurred image
NOTE: An IR corrected lens is required to provide correct
focus in both IR & white light conditions
IR LIGHTING
WITH IR LENS
WITHOUT IR LENS
DAY TIME
NIGHT TIME WITH
IR LIGHTING
IR CORRECTED LENS
STANDARD LENS