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All required components you can find on aliexpress.com.
This article demonstrates how to make the budjet USB-2.0 high resolution document camera.
You will need:
- 30 LED Energy Saving Desk Lamp with Magnifier (328A) - about 11.00 USD
- HD 2 megapixel 1080p mini varifocal 2.8-12mm lens usb camera module with IR cut ELP-USBFHD01M-FV - about 57.00 USD
- A piece of black plastic sheet, knife, screwdriver, 2mm drill, empty plastik bottle (about 50mm in diameter, look in your aid kit) and one hour of your time to assemble the parts together.
The camera has USB-2.0 interface and works out of the box without custom driver on Linux Ubuntu and Windows. For more accurate correction of exposure compensation, white balance and saturation it is highly recommended to install on your computer GTK UVC video viewer or similar tool:
Result image example
On the image below is shown 12mm buprestid beetle Palmar. The image had no post-processing. The quality of image is not DSLR-like but enough for fast web-publication. Of course, you can use any other HD webcamera, but in sence of price/quality performance, I think, this combination is unbeatable.
Photobooth.js-based application to make photos online
Here you can test your camera. Target it and puch photo-icon one or many times (it is over the live-view panel). Download results. Enjoy!