The "ELMO" document camera is used to show any opaque or transparent 2-dimensional (text, photo, transparency, drawing) or 3-dimensional work/object to connected locations. It can zoom, adjust iris, white balance, and translate positive and negative images. As a portable visual presentation unit, it is used like an overhead projector; however, it provides a video signal to a television monitor or video projector rather that project light on a wall. Our document camera has two built in lights to illuminate the objects being presented, and a base light that illuminates slides and transparencies from beneath.
- Input Selection - two additional video sources such as a VCR and laserdisc player can be connected to the document camera and displayed with the push of a button.
- Posi/nega Conversion - Negative film can be displayed as positive and vice-versa.
- Zoom - Using the "Tele" or "Wide" button, you can zoom out or in from an item on the base.
- Focus - the auto focus button clears an image automatically. A manual override is available, this is particularly useful for three dimensional objects.
- White Balance - both automatic and manual odjustments are available. To manually adjust an image, turn the "R and B" knobs.
- Iris - Exposure
(dim/over bright) may be adjusted by turning the iris knob. Increase
exposure by turning the knob clockwise, decreaseexposure by turning
the knob counter-clockwise; keep the knob in center position to adjust
exposure automatically.
Setting Up The Document Camera
- Unfold the camera and lights.
- Connect the document camera to a power outlet.
- Connect the RCA type video cable to the video out terminal of the document camera.
- Connect the other end of the RCA type video cable to the video input of a videoconference unit, TV monitor, VCR, or video projector.
- Turn on document camera and the TV monitor.
- If connected to
a videoconference system, use the remote for the videoconference system
to select the document camera input.
Using The Document Camera
- Place item to be displayed on the base of the document camera.
- Make sure the internal input is selected.
- While looking at the TV monitor, adjust the size of the image by pressing the zoom or wide button, and press the auto focus button to obtain a clear image.
- Turn on the upper
lamp to illuminate solid objects on the stage. Turn on the base lamp
to illuminate transparencies and slides.
- No Power - Make sure unit is plugged into cart and/or into wall outlet. Turn on main power switch located on upper left side of unit.
- Unit turned on but nothing is displayed on Television Monitor - Make sure video cable is connected between video out of document camera and video input of television montior. If used with videoconference unit, make certain that the document camera input is selected from the keypad.
- Lights aren't on - The lights "toggle" from off, to arms, to base. Repress light button to toggle through. Make certain power is on.
- Image not in focus - Press the auto focus button or manually adjust by pressing the focus + or - buttons.
- Image too dark or too light - Set knob at center for automatic adjustment or mannually adjust the iris control to proper exposure.