Pentax Imaging Systems has announced Firmware updates for the Pentax K-5, Pentax K-r and the 645D interchangeable lens digital SLR cameras.

The Firmware for the K-5 enables

  • An improved functional sequence of Contrast AF and improved total speed until focus is done
  • All ISO settings can now be selected in Bulb mode, from 80 to 51 200 (whereas with v1.01, maximum
  • value was 1 600)
  • NEW: Compatibility with SDXC memory cards

The Firmware for the K-r enables

  • An improved functional sequence of Contrast AF and improved total speed until focus is done
  • All ISO settings can now be selected in Bulb mode, from 100 to 25 600 (whereas with v1.01, maximum value was 1 600)
  • NEW: Compatibility with SDXC memory cards

The Firmware for the 645D enables [Changes to V1.01]:

  • NEW: Compatibility with SDXC memory cards

For more information please visit the Pentax website