Pentax K-5 Firmware Update 1.12
Pentax has issued a firmware update for the Pentax K-5 digital SLR camera. Version 1.12 addresses the rare issue of a band of light green noise appearing in images of starry skies taken with the Astrotracer function enabled and the O-GPS1 accessory mounted. You can download the firmware upgrade from the website below.
Website: Pentax Japan