This Function Expand Firmware has been designed to further enhance the performance and operability of your RICOH GR IV and GR IV HDF, by adding the latest functions and new settings to the camera.
Based on the five development principles for GR cameras (please watch also the GR-Story) we react on user wishes and requirments and adding functions and new settings with new firmware versions.
Please find with this page information about RICOH GR IV / GR IV HDF updates.
This firmware update does not apply to the GR IV Monochrome
13.02.26 - By upgrading to the newest firmware version, the following functions are added / updated
Changes to V1.11
Improved Contents
● The electronic shutter function introduced in the GR IV HDF has been added to the GR IV. Shooting is possible at F2.8 (wide open) with shutter speeds of up to 1/16,000 seconds. Even in bright environments, proper exposure can be achieved when shooting near the aperture’s wide-open setting.
* When the aperture is set between F2.8 and F4.0, the mechanical lens shutter is used at shutter speeds of 1/2,500 seconds or slower, and the electronic shutter is used at speeds from 1/3,200 to 1/16,000 seconds.
* When the aperture is set between F4.5 and F5.0, shutter speeds of 1/3,200 seconds or slower use the mechanical lens shutter, while speeds from 1/4,000 to 1/16,000 seconds use the electronic shutter.
* When the aperture is set between F5.6 and F16, shutter speeds of 1/4,000 seconds or slower use the mechanical lens shutter, while speeds from 1/5,000 to 1/16,000 seconds use the electronic shutter.
* When using the electronic shutter, a “rolling shutter effect” may occur, causing fast moving subjects—such as trains, cars, or sports scenes—to appear slanted or to be recorded with circular distortion.
● Improved stability for general performance.
* All of these improvements are designed to enhance your experience. Please update your firmware.
* Applying this update to the GR IV will also include all features and changes introduced in version 1.04 and earlier.
* Once this update has been performed, you will not be able to restore the previous version.
In this context, we would like to draw your attention to the ‘GR-World’ app.
The latest feature allows you to update the firmware via the app.
You can find out more by clicking on this link...
Update History
28.11.25 - Changes to V1.04
Improved Contents
● Wireless communication will now automatically turn off when the battery is depleted to prevent battery drain.
● Charging control has been improved to reduce battery degradation and ensure greater safety and stability.
● Improved the pairing guidance shown when registering a camera to the 'GR WORLD' app for smart devices.
● Improved stability for general performance.
29.10.25 - Changes to V1.03
Improved Contents
• A certification mark approved for use in Malaysia has been added on Certification Marks screen.
• The OSS license has been updated.
*We previously announced the release of version 1.02, which complies with the Malaysian certification mark. However, due to updates to the OSS license, we are now releasing it as version 1.03.
