Axis Communications 2120 - Manual (Page 44)

Adjusting the Camera Focus AXIS 2120 User’s Manual 44
Adjusting the Camera Focus
The AXIS 2120 has a varifocal DC Iris lens that automatically regulates the amount of light
entering the camera, to provide a wide-angle zoom with a minimal amount of distortion. Complete
with a standard CS-mount, this supplied lens can also be replaced by any other lens conforming to
the same standard.
Direct Focusing in Your Browser
Supporting rotational focus control, the AXIS 2120 can be
targeted for different applications. With your video feed on
display on a local desktop, simply adjust the camera focus ring
until you are satisfied with the focus.
However, for remote installations - where you cannot view your
video images directly from your chosen point of installation -
you can achieve a good level of camera focus by using the Focus
Assistant, described later in this section.
Notes: •The text information printed on the lens assembly will
clearly define the focusing polarity ( F,
∞
, and N) for the
focus ring supplied with your unit. The camera focus is
adjusted for either Far-focus
(F,
∞
)
or Near-focus (N) by
rotating the focus ring in the appropriate direction.
•The lens rotates on a screw fitting and can be completely
removed. If you need to remove the lens, take care not
to let any dust enter the lens or the camera window as
this can adversely affect the quality of your live images.
Important!
is NOT typical for all lens types.
The lens assembly illustrated below
Lock Ring Focus Ring
Wide/Tele Zoom