WolfVision SCB-12 - Manual (Page 7)

Functions Basic
7 Version 1.2
4 FUNCTIONS
The SCB-12 can be controlled through a key-matrix,
IR-remote control (IR-receiver and IR-remote control
will be required), via Ethernet/LAN, USB or RS-232. For
details regarding further functions please read the
online user manual
www.wolfvision.com/wolf/ma_scb12.pdf
4.1 Zoom
The SCB-12 uses an 12x zoom lens:
f=5.8 to 69.6 mm (F=2.8 to 3.0)
4.1.1 Digital Zoom
The digital zoom is automatically switched on at the tele
end of 12x optical zoom range, with progressive effect
from 1 to 4, giving a total maximum of 48x zoom ratio.
Digital zoom increases the picture element size and re-
duces the resolution.
Still pictures in the memory can also be digitally
zoomed.
4.2 Auto Iris / Manual Iris
The SCB-12 is equipped with an auto iris function. This
means that the brightness of the camera image adjusts
automatically. When using the IRIS-keys the auto iris
function is switched off. In this mode the iris can be ad-
justed manually. When using the ZOOM-keys the auto
iris is switched on again.
The auto iris also controls the Auto Gain and Auto Shut-
ter to extend the iris-range.
4.3 Focus / Autofocus
The minimum focus distance (MOD) is below 50mm at
optical wide end and below 500mm at optical tele end,
and is independent of digital zoom. If shorter distances
are necessary, a high quality close up lens is available.
Please note that objects with very low contrast e.g. a
blank sheet of paper) are difficult to focus. If the
autofocus does not work just move the object slightly.