Document cameras provide the ability to easily present video of a physical object onto a digital display such as projector or computer monitor.
There are several key specifications to look out for when selecting a document camera:
Connections (I/O): This specification refers to its cable connections going into the device and out of it. The I/O’s on document cameras can vary greatly and you’ll want to verify that it can properly connect to the intended paired device. The most important connection to look at is the “Video Output”.
Resolution: This specification refers to what its max video output resolution is. Depending on what objects you will be placing under the document camera it is generally recommended that you select a device which can support at least a native resolution of 1024x768. Max resolutions lower than this will result in a pixilated image captured/projected.
Frame Rate (Frames per Second/FPS): For live video capture/display, frames per second (FPS) is very important in displaying video in “real-time”. 30 frames per second represent “real-time” video capture/display and should be standard if the document camera will be used for demonstration/capture purposes. Anything less than 25 FPS may result in choppy video.
Zoom: When looking at this specification the important zoom to look at is the “optical” zoom. The optical zoom represents the lens physical ability to magnify the object in question. For document cameras, IT Services recommends that an optical zoom of at least 6x is chosen for getting extremely close-up magnification and detail on the object.
Lighting: Some document cameras come equipped with built-in lights. Being able to light up your object will allow the camera to display the smaller details and allow a better capture/display for viewing audiences. Keep this specification in mind if you will be capturing/displaying objects of which detail is essential.