78
Zoom and Focus
Zoom and Focus, also known as
Remote Zoom and Focus
, is applicable to Network Cameras
that are equipped with stepping motor lens. The One-Touch Focus adjustment function
eliminates the needs to physically adjust camera focus.
2011/10/15 17:08:56
Focus window
5
4
2
3
1
Streaming window
Below is the procedure to perform
the remote Zoom and One-touch
Focus function:
1. Use the
Zoom
slide bar to find
an optimal view of the area
of interest where you want to
adjust its focus. Click and drag
the double-triangle pointer to
rapidly adjust the zoom ratio. And
use the "W(Wide)" or "T(Tele)"
button to finetune the zoom if
necessary. The
Focus
pointer
moves with the Zoom pointer
correspondingly.
2. Select from the bottom of the
screen whether you want to
perform focus adjustment on the
Full view
or within a
Custom
focus window. You can create
a custom window and click and
drag the window to a desired
position on screen.
3. Click to select the
Full-range scan
and/or the
Fully-open iris
checkboxes. When selected, a full-
range scan through the camera's entire focal length can take about 80 seconds. If not, the One-Touch
focus scan will only go through the length where optimal focus may occur, and that takes about 12
seconds. In theory, best results of the auto scan can be acquired when the camera's iris is fully open.
The iris fully open checkbox is selected by default.
4. Click on the
START
button, and wait for the scan to complete.
5. After a short time, the clearest image obtained should be displayed and the optimal focus range is
indicated by the densest color area on the color bar. Use the "F(Far)" or "N(Near)" button to fine-tune
the focus if you are not satisfied with the results.
The methodology of using the Resize Buttons at the upper left corner of the streaming window is the
same as that on the home page.
● One-Touch Focus is sometimes not possible when shooting through a glass pane, a flat object such as
a wall and moving object. Achieve focusing of these objects by manual focusing.
● One-Touch Focus is sometimes disabled due to noise in low-light intensity. Then adjust focusing by
manual.
● Auto focusing is sometimes not possible when the object is dark and camera sensitivity is not low
enough. Then adjust focusing by manual.
NOTE
