Cctv Lenses; Optical Chart - Omron F250-C50 C55 - SETUP 09-2001 Manual

CCTV Lenses

3-1

CCTV Lenses

When using a Camera without a light (F150-S1A or F160-S1), refer to the fol-
lowing graph to select the appropriate Lens and Extension Tube. The lens will
differ depending on the size of the measurement object and the distance from
the Camera.
3-1-1

Optical Chart

The values in the following chart are approximations, and the Camera must be
adjusted after it is mounted.
5,000
3,000
2,000
1,000
500
300
200
100
50
4 5
The X axis of the graph shows field of vision L (mm), and the Y axis shows the
camera distance A (mm). The curves on the graph show the relationship
between the field of vision and camera distance for each CCTV lens. The val-
ues are significantly different for each lens, so double-check the model of the
lens before using the graph. The "t" values indicate the lengths of the Exten-
sion Tubes. The value "t0" shows the case where an Extension Tube is not
needed and the value "t5.0" shows the case where a 5-mm Extension Tube is
used.
22
10 20 30
Lens model: 3Z4S-LE
50 100 200
Field of vision L (mm)
Section 3-1
t: Extension Tube length
300 500