Camera production date based on a serial number

• MartyG

  • August 08, 2019 22:21
  • Edited

  According to a member of the RealSense team, the serial number refers to the optical module of the camera, and the separate ASIC serial number refers to the camera board.

  https://github.com/IntelRealSense/librealsense/issues/4369#issuecomment-509604349

  There is no discernable information in the serial numbers about the camera's age, as far as I can tell.  Product serial numbers can sometimes be quite cryptic, encoding information in their numbers such as date of production, shift number, production line, etc, but not in a human-readable format.

  In a very broad time-frame, the original D435 came first, and was first shipped around January 2018 (though stocks were limited for the first half of 2018).  The D435i came along towards the end of 2018, and I think the limited-edition blue D435 was around the same period.  

  RealSense cameras are very durable over the long term even when used frequently and put under heavy processing load.  There have been no significant changes in the hardware between production batches too as far as I am aware (for example, the D435 limited edition blue model is essentially just a different casing).  So the purchase date of the camera should not be an indicator of whether it is better than one purchased earlier.

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• Cam Huynh

  • January 20, 2021 02:57

  But I do need to know release date for below purpose. If I have a mixture of camera then how can I work out which firmware best? 

  

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• MartyG

  • January 20, 2021 07:28

  Unless it is a just-released camera where support for it was added in the newest firmware version, a good rule to use if you are concerned about production-level stability is to use 'one version older' than the newest version for all of the 400 Series cameras, as that second-newest version will have already demonstrated its long-term stability by then.  The most recent firmware versions are in the D400 Series firmware downloads file list.

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