Raspberry Pi camera works well for PCB imaging

[cdev]

Plus it has IP connectivity built in.



http://www.instructables.com/id/Raspberry-Pi-Zero-HDMIWiFi-Soldering-Microscope/




https://digibird1.wordpress.com/raspberry-pi-as-a-macro-camera/

https://www.raspberrypi.org/blog/macro-photography-with-the-camera-board

Using it with microscopy lenses as a telescope.

https://www.raspberrypi.org/forums/viewtopic.php?t=148328

Using it attached to a traditional microscope.
https://www.microscopy-uk.org.uk/mag/artfeb17/hw-RaspberryPi.html

also:



Astrophotography:
https://www.raspberrypi.org/blog/astrophotography-with-the-camera-board/


http://www.sony-semicon.co.jp/products_en/new_pro/april_2014/imx219_e.html

Motion control and lots of other stuff, including imaging.

http://www.openlabtools.org/presentations/2013_08_RPiWorkshop/OLT_MicroscopePresentation.pdf