Adjusting Zoom And Focus - Swann PRO-781 Manual

Adjusting Zoom and Focus

The zoom and focus controls are located on the interior of the dome, just above
the lens. You'll need to remove the cover of the dome (using the included star-key
tool) to access them.
Important: When you change the zoom, you'll also have to change the focus.
Why? Lenses are complicated, and all the bits are joined together. Changing the
zoom will also change the focus. In fact, it can sometimes feel like the controls are
reversed, so profound are their effect on one another.
ZOOM: The right hand dial
(when viewed from the
front, as shown to right)
controls the level of zoom.
You can vary the viewing
angle between 23° and 81°.
This is an approximately
3x optical zoom, which
operates in a similar manner
to the zoom on your digital
camera. Basically, zooming
in makes everything appear
to be larger, at the expense
of the viewing area.
Check out the diagram
to the lower right for a
visual representation of the
zooming process.
The smaller viewing angle
(marked 23°) represents
the camera's view when
"zoomed in", and
larger angle (81°) represents
the camera's view when
"zoomed out".
You can set the zoom to
either of these extremities,
or anywhere in between.
4 4 4
the
Focus Zoom
23°
81°