Ricoh has announced 8 firmware updates for the following Pentax DSLR cameras:
The firmware updates all deal with the following issues:
Correspond to the AF assist light function by white LED light for auto flash unit [AF360FGZII] and [AF540FGZII].
Optimized contrast AF when using HD PENTAX-DA Limited series lenses.
Improved stability for general performance.
For more information and to download the firmware update for your camera, visit the Ricoh Support and Service page