Configuration Guide

19 iDS-9632NXI-I8/4F
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The scenario is too large and the face recognition rate is low
3.3 The Selection of Camera Lens
Different cameras, lens focal lengths and monitoring widths are key points for the different
monitoring distance and installation. The conversion relation between them is as follows:
1) The selection of lens focal length：
D 8.1f 
8426 (1)
2) The height of camera：
5.1)(tan  DH

(2)
3) D : The monitoring distance
4) The height below the head sets as average value 1.5 m
5) α is the elevation angle
6) Elevation angle is recommended as 10°,
)10(tan 
≈0.18，
)15(tan 
≈0.27，
)20(tan 
≈
0.36
3.4 Installation Position and Lens Query Table
Camera
Model
Monitoring
Width W
Lens Focal
Length
Monitoring
Distance
Installation Height
of Camera
Elevation
angle
α°
200W
3.0m
4mm
2.2m
1.9m-2.3m
15°±5°
200W
3.0m
8mm
4.4m
2.3m-3.1m
15°±5°
200W
3.0m
16mm
8.9m
3.1m-4.7m
15°±5°
Here’re several modes we recommend for outdoor/indoor use, customer can also select by
themselves according to actual scenario.
IP camera
indoor
outdoor
6 & 7 series
iDS-2CD6026FWD-A/F
DS-2CD7126G0-IS
DS-2CD7026G0-IS
DS-2CD7A26G0-IS(H)(Y)
8 & 9 series
iDS-2CD8426G0/F-I
iDS-2PT9122IX-D/F