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This Function Expand Firmware has been designed to further enhance the performance and operability of your PENTAX K-3 Mark III, by adding the latest functions and new settings to the camera.

Function Expand Information (Version 1.50)Download

By upgrading PENTAX K-3 Mark III (ver.1.50), the following function is added

KATEN (summer sky): a new special-edition Custom Image mode

In a new approach to SLR photography, PENTAX will release a series of new special-edition Custom Images, designed to create subject- or scene-specific finishing touches in combination with specific PENTAX Limited-series lenses — lenses popular for their distinctive image rendition. As a lens is mounted, the camera automatically detects compatibility with the firmware. Once compatibility is confirmed, the user can then select special-edition Custom Images.

The new special-edition Custom Images cover the seasons: spring, summer, autumn and winter. The Custom Image mode specially designed for each season will be available in combination with specific Limited-series lenses. PENTAX will release four season-specific Custom Image modes over the year.

The first season-specific Custom Image mode is KATEN (summer sky). This mode is designed to emphasize the rich blues of summer skies and depict the fine details of dazzling white clouds.

Compatible lenses:
HD PENTAX-D FA 21mmF2.4ED Limited DC WR
HD PENTAX-DA 15mmF4ED AL Limited

KATEN Enlarge HD DA 15mmF4ED AL Limited Aperture: F5.0, Shutter speed: 1/1600sec, Focal length: 15mm, White Balance: Auto, Sensitivity: ISO 100, Shooting mode: Aperture Priority
Bright Enlarge HD DA 15mmF4ED AL Limited Aperture: F5.0, Shutter speed: 1/1600sec, Focal length: 15mm, White Balance: Auto, Sensitivity: ISO 100, Shooting mode: Aperture Priority

■ Menu screen
When a lens is mounted, the camera automatically checks for compatibility, then displays the KATEN-specific menu screen.

Standard menu screen
KATEN-specific menu screen

Update History

Function Expand Information (Version 1.41)

By upgrading PENTAX K-3 Mark III (ver.1.41), the following function is added

ASTROTRACER Type 3

Equipped with ASTROTRACER Type 3, a new, simplified equatorial function that enables to track and capture celestial bodies without using GPS unit O-GPS1. Before actual shooting, a preliminary shot is captured automatically, enabling celestial body tracking from star movements.
This new feature eliminates GPS positioning wait time, which is essential when shooting with the conventional ASTROTRACER, as well as precision calibration tasks required when changing lenses. Furthermore, shooting is possible even in locations subject to previously troublesome magnetic fields.

When used with interval shooting, it is possible to perform multiple main exposures with a single preliminary shot.

D FA 150-450mmF4.5-5.6
F8, 60sec, 450mm, ISO1600,
In-body RAW data development,
Level Adjusted, not trimmed
Normal shooting
ASTROTRACER Type 3
Sample Image #01

Full size
Sample Image #02

Full size
Sample Image #03

Full size
Sample Image #04

Full size
Sample Image #05

Full size

[Precautions]

  • Time exposure of the mode dial B (Bulb Exposure) is available (Normal bulb exposure is not possible).
  • Not compatible with fisheye lenses.
  • Only use the zoom lens at the wide or telephoto end. However, the following lenses can be used at any zoom position.
    HD PENTAX-DA 55-300mmF4.5-6.3ED PLM WR RE
    HD PENTAX-DA11-18mmF2.8ED DC AW
    HD PENTAX-DA16-50mmF2.8ED PLM AW
  • Note that preliminary shooting may fail and correct tracking may not be available when photographing starry skies with other scenery or if something other than stars (clouds, etc.) enter the frame.

When photographing starry skies with other scenery or if something other than stars (clouds, etc.) enters the frame, or when using a fisheye lens, it is best to shoot with a conventional ASTROTRACER (Type 1, 2) using a GPS unit.

Conventional ASTROTRACER (Type 1, 2)

ASTROTRACER is a revolutionary feature that makes it easy to track and capture celestial bodies by attaching a GPS unit to a compatible model such as the K-3 Mark III, so that it can work with the camera's built-in image stabilization SR (Shake Reduction) system. Celestial body movement is calculated using the latitude obtained from GPS information, and the camera's position (horizontal or vertical tilt and orientation) obtained from the built-in magnetic and acceleration sensors move the image sensor in synchronization with celestial bodies to capture points of light rather than star trails even during long exposures.

Function Expand Information (Version 1.31)

By upgrading PENTAX K-3 Mark III (ver.1.31), the following functions are added.

1. New Custom Image “SATOBI”

The Custom Image “SATOBI” has been newly added to the camera.
This Custom Image provides a finishing tone similar to color photos from the 60 and 70s with colors such as cyan blue, dull yellow, and faded red. The unique red expression is suitable for such as portrait photography.
Click here for more information Distinctive color expression




2. Tone curve display at each Custom Image parameter setting screen

A tone curve display has been added at the Custom Image parameter setting screen.
Changing the value for the parameters “High/Low Key Adjustment”, “Contrast”, “Contrast (Highlight)”, and “Contrast (Shadow)” in detailed settings updates the tone curve based on the value set, which enables you to more intuitively adjust the parameters used to finish images.
Click here for an explanation of detailed Custom Image settings


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