American Dynamics ADTTE Operator's Manual download pdf (Page 20)

3-4 ADTTE Matrix Keyboard Operator's Manual

Controlling Zoom and Focus

Once you have selected a camera, you can control its zoom and focus settings. Figure

3-4 illustrates the location and function of the zoom and focus buttons:

Figure 3-4: Zoom and Focus Controls

Adjusting Zoom Settings

Zoom refer to the adjustment of the magnification of the camera lens to make an

object appear closer (larger) or farther away (smaller). The zoom buttons are located

to the left of the Tracker Ball. By pressing the Zoom In button, the camera’s image

appears to move closer to the object. By pressing the Zoom Out button, the camera’s

image appears to move away from the object. If you quickly press and release a zoom

button, only a slight visible change appears on the monitor. The longer a Zoom button

is pressed, the more noticeable the response.

Adjusting Focus Settings

Focus refers to the process of adjusting the clarity of a scene or an object, as seen

through a camera. The focus buttons are located to the right of the Tracker Ball. If the

object that you want to see clearly is farther away than the current focus setting, press

the Focus Far button. If the object that you want to see clearly is closer than the

current focus setting, press the Focus Near button. You will see the picture on the

monitor become either sharper or more distorted. Like the zoom buttons, the focus

buttons react based on the length of time the button is pressed. The longer a focus

button is pressed, the more noticeable the response.

Controlling Iris Settings

Normally, the camera's auto gain function and the auto/manual iris function control

the brightness of the picture. Occasionally the darkness or brightness of the image

displayed on the monitor requires adjustment. The iris control buttons regulate the

brightness or darkness of the image.

To brighten the picture, press the Iris Open button. To darken the picture, press the

Iris Close button. The Iris Open and Iris Close buttons are located to the right of

(Camera button).

Focus Far

Focus Near

Zoom In

Zoom Out

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American Dynamics ADTTE Operator's Manual Page 20