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ZOOM: Use the TELE & WIDE buttons (2), located on the right-side of the document camera near the front, to zoom in & out on the subject placed on the document camera's stage.
FOCUS: After you have zoomed in/out on the image, use the focus buttons or press the Auto button (2) to focus the image. These controls are located to the right of the zoom controls.
POSI/NEGA: To invert the colors of the document camera image, press the POSI/NEGA button (3), which is located near the front of the document camera in the center. Pressing it again will restore the image's natural colors. This can be used for viewing negative film or can help make some documents easier to read.
COLOR/B&W: To toggle between displaying the document camera image in color or in black & white, press the COLOR/B&W button (3), which is located to the right of the POSI/NEGA button. This can be used for viewing black & white documents.
LIGHTING: These controls are located on the left-side of the document camera near the front (4). To turn the arm lights on or off, press the UPPER button. To turn the base light on or off, press the BASE button.
To download the manual for the ELMO Visual Presenter EV-500AF, click here (.pdf).
You may need to download the Adobe Acrobat Reader from the Adobe website if you wish to view instructional manuals for each document camera.