Pentax K-1 firmware update version 1.40 released

The previously reported firmware update version 1.40 for the Pentax K-1 camera is now officially released. Here are the details:

Red-Lighted LCD Monitor Display Function

  • The PENTAX K-1 provides a red-lighted LCD monitor display function, which prevents the pupils of the photographer’s eyes from constricting after they have become accustomed to a dark environment during astrophotography.

Bulb Timer Function

  • The bulb timer function comes in handy when photographing celestial bodies or fireworks. The PENTAX K-1 allows the photographer to expand the exposure time up to 20 minutes in Bulb mode.


  • During slow shutter speeds the PENTAX K-1 features white dot noise reduction processsing.*
  • Overall Improved stability for general performance.

* When Slow Shutter Speed NR is OFF and JPEG image.

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