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Are there good low cost cameras that are frequently used in robotics?

I am assuming there are cameras that are good fit for robotics ...

  1. Works well with OpenCV
  2. PC Windows support - USB2/USB3 (GigE, USB3 vision cameras seem pricey)
  3. Good image sensing performance
  4. Adjustable focus - manual or motorized (fine focus control would be great)

Do IP cameras make good cameras for Robotic vision projects?

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    $\begingroup$ I think the best camera is webcam. Cheap, easy to reach and there is many examples. You can modify it easily with no worry $\endgroup$ – acs May 27 '15 at 20:29
  • $\begingroup$ what is the target application? $\endgroup$ – bendervader Jun 7 '15 at 7:30
  • $\begingroup$ I'm afraid that shopping questions really aren't a good fit for a stack exchange site. We prefer practical, answerable questions based on actual problems that you face. Take a look at How to Ask and tour for more information on how stack exchange works. $\endgroup$ – Mark Booth Jun 7 '15 at 11:27
  • $\begingroup$ I understand that. I wasn't asking about a recommendation for a brand or particular model, I am interesting in the type most people generally use. $\endgroup$ – Ali Jun 7 '15 at 17:15
  • $\begingroup$ IP cameras, webcams, Raspberry Pi cams are all great cheap ans be suitable for most hobby robotics projects $\endgroup$ – JJerome Jul 18 at 23:38
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I personally love the ZED as I do a lot of work with stereo vision and come with opencv modules built for them, but they are quite pricy, I find that most higher end webcams work great with openCV, IP cams are a poor choice in my experience with unpredictable latency (you may not care about this), built in compression which can mess with openCV and they are much more expensive than a comparable webcam.

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