1.2.6 Zooming
The camera has two zoom features. The first is an optical zoom that allows you to magnify images by up to 21× (10 levels of zoom) and a digital zoom feature that allows you to further magnify images by up to 2× (2 levels of zoom), for a total zoom range of 42×. This feature is referred to in this document as the “42× zoom” feature. The 42× zoom feature can be used when:
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Viewing video images on the single camera page
The second zoom feature is a 10× (by area) digital zoom. This feature uses the ActiveX Controls installed on your PC; when using this feature, the lens itself does not zoom. This means that while you are using the 10× digital zoom, another user can be looking at the same image with no zoom. This feature is referred to in this document as the “10× digital zoom” feature. The 10× digital zoom can be used when:
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Viewing video images on the single camera page (when the 42× zoom feature is disabled)
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Viewing video images from multiple cameras on the multi camera page
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Viewing buffered MJPEG video images on the buffered image page
There are 3 ways to use the zoom features, as explained later in this section.
Note
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As the digital zoom magnification increases, image quality decreases.
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You can move the lens as normal (selecting a preset, using the navigation buttons, etc.) even when zooming.
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If the 42× zoom feature is disabled for general users or guest users, or when zooming while viewing buffered MJPEG video images, the 10× digital zoom is available. The digital zoom magnification (×1.0–×10.0) is displayed briefly while zooming.
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When [Tele End] is displayed at the top of the operation bar, the lens cannot zoom in any further. When [Wide End] is displayed, the lens cannot zoom out any further.
Zooming with the zoom buttons
Click

or

in the operation bar to use the 42× zoom to zoom in or out, respectively. Note that these buttons are not displayed if the 42× zoom feature is disabled for general users or guest users.
Zooming with the scroll wheel
With the cursor placed over the camera image, rotate the scroll wheel away from you to zoom in, and rotate the scroll wheel toward you to zoom out. Note that the zoom speed depends on your mouse performance and your PC’s mouse settings.
Zooming with the right mouse button
Right-click the upper part of the image to zoom in, and right-click the lower part of the image to zoom out.