Ver.1.13 2020.04.03
A color mode Teal and Orange has been added.

Ver.1.12 2018.10.25
It has corrected the phenomenon whereby the camera freezes after reactivation from LCD Auto Off if the Viewfinder Mode or LCD Mode settings have been opened from the main menu.
It has shortened the time to recognize the card when an SDXC card is used.

Ver.1.11 2018.08.28
It has corrected the phenomenon whereby X3F files that have been extracted from X3I files cannot be developed a second time, if values are adjusted and saved onto the files using SIGMA Photo Pro.

Ver.1.10 2018.06.20
It has become possible to automatically retract the lens barrel of the 70mm F2.8 DG MACRO | Art, when the camera’s power is turned off.
It has set the maximum shutter speed in SFD (Super Fine Detail) Mode to 1/500 sec., so as not to duplicate shutter speeds of the individual images.
It has corrected the phenomenon that the X3F/X3I images taken with SIGMA Capture Pro cannot be developed properly when the value adjusted by SIGMA Photo Pro is saved to the file.
It has corrected the phenomenon that the images occasionally show some green or magenta color rendering after updating the firmware.

Ver.1.09 2018.04.13
It has improved the camera operation in low temperatures. Inconsistent performance of the viewfinder, main display, shutter and image saving has been improved.

Ver.1.08 2017.12.22
It has improved the image quality of the displayed files, when checked on the main display or through the viewfinder or output via HDMI.

JPEG images on the SIGMA sd Quattro

In order to optimize the image quality, we have been developing and updating the firmware for the SIGMA sd Quattro . For the SIGMA sd Quattro, from firmware Ver. 1.05 onward, improved noise reduction has been implemented to the image processing function. Although this specification benefits the overall image quality, under certain shooting conditions or depending on subjects, it may look like the resolution is lower than before. For such customers, we would like to offer a new option for the image processing that prioritizes the resolution power.

In order to change the image processing mode of JPEG files, please refer to the PDF file “How to change the image processing mode”. There is no change in the image quality of RAW data even when the image processing mode is changed.
In addition, for those who change the image processing mode, the change will remain even after updating the firmware in the future.

For those who prefer the current JPEG images or shoot in RAW mode, no change is required.

How to change the image processing mode PDF（659KB）