Pentax K-3 III Firmware Update v1.10 Released

Electronic shutter support added, plus stability fixes

By PF Staff in Firmware Updates on Jul 21, 2021

Ricoh Imaging has released its third update for the Pentax K-3 III, which not only improves stability, but also adds an exciting new feature: full electronic shutter support.  This means that the mechanical shutter can be disabled on demand (for quieter shooting and lower vibrations) up to 1/16000s.  Prior bodies only supported electronic front curtain shutter.

Download the K-3 III firmware from the official Pentax firmware site.

Official Pentax K-3 III v1.10 firmware notes:

[Enhanced features]

  • [Electronic shutter] can be selected.
  • When [Electronic Shutter] is selected, a high-speed shutter of fastest speed 1/16000 sec. is supported.

For detials on this new feature, please see this addendum of the Pentax K-3 III manual.


To discuss this update, please visit our Pentax K-3 III forum.

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Pentax K-3 III firmware update instructions:

  1. Download the firmware ZIP file from this page
  2. Extract the file to a folder of your choosing
  3. Locate the extracted .BIN file and copy it to the root (top level i.e. outside of any folder) of a formatted SD card
  4. Insert the card into your camera and ensure it is fully charged
  5. Turn the camera power on while pressing the MENU button
  6. Select "Yes"at the firmware prompt
  7. Once the screen displays "Complete", turn off your camera
  8. Power your camera back on and resume normal use
  9. In order to verify that the firmware update was successful, go to the firmware option under the setup (wrench icon) menu tab, and confirm that the indicated firmware version matches that of the update.

Note that all updates are cumulative, so the latest firmware version includes the contents of all previous versions.  Need help?  See our firmware update guide.

Firmware Update Tutorial Video

Stay tuned for our in-depth review of the Pentax K-3 III, or learn more in the official announcement!

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