Amazon.com.au:Customer reviews: IPEVO VZ-R HDMI/USB Dual Mode 8MP Visual Communication Tool for Real-time Projection, Remote Work, Distance Learning, Web conferencing, Video Recording, Live Demos — Works with and Without a Computer
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I have macular degeneration and was having difficulty reading the various menu screens on an insulin pump and my smartphone. I had already upgraded my computer monitor to a very large 43"(running Windows 10 in high contrast mode) and I wanted a camera to put any device in front of it and enlarge it on my 43" screen.
I compared various document cameras available and settled on this model, primarily because it had a standard HDMI high definition video output which would supply a signal directly to my monitor. It also has a USB output to use with a laptop. The first unit arrived and it would not power up. I sent it back and Amazon immediately replaced it within two days. The second unit worked flawlessly, and I think now that my problem with the first unit may have been operator error. The buttons on the vertical column are very easy to operate (auto focus, exposure dark to bright, digital zoom, image effects (high contrast video in various text and background color combinations; I don't use that) and a small LED next to the camera head which throws more than enough light onto printed materials for viewing and reading.
The build quality is excellent. It's made of sturdy metal and the flexible design of the arm holding the camera is useful to put larger objects beneath the camera on the end of the arm. The base is extremely heavy and keeps the unit from moving when you need it to remain still.
You'll need to provide your own USB power supply (a USB type A smartphone charger works fine) and your own HDMI cable to connect to your monitor. I usually leave it on all day and switch my computer monitor to it when I need to see something. For occasional travel I'm planning to take it with me and pair it with one of the 15.6" folding portable HD computer monitors which fold flat. Even the box it was packed in was high quality and can double as a carry case when you want to take it somewhere. All in all a very positive experience and one more thing for my bag of tricks to alleviate my vision issues.
I use this document camera regularly for teaching classes. It's well built and has a high quality lens. The downloadable software is excellent too. I originally purchased an inexpensive document camera costing half as much as this one, but I was dissatisfied with its flimsy construction, and any desk movement was magnified on camera. I'm very satisfied with this product.