- Image Control function offers 12 distinct modes to apply preset looks to a scene along with a new Cinema mode, with a choice of Yellow or Green tone, for a more nostalgic and filmic appearance.
- Saturation, contrast, hue, key, grain parameters of each mode can be adjusted to suit the desired effect and select settings also support strength and size tuning for an even more personalized look.
- User-selected settings can be added to the Image Control menu as a custom mode.
- When set to Program AE, the GR IV now has a Program Auto Ex function, which allows instant switching of the exposure mode by turning the front e-Dial for Aperture Priority or the rear e-Dial for Shutter Priority.
- Snap Distance-Priority AE (Sn) mode has also been added to the exposure mode options; this mode emphasizes the depth of field of a scene and adjusts the exposure parameters to prioritize the desired depth of field effect.
- Sensor has an anti-aliasing (AA) filter-less design, which maximizes sharpness and resolution in most shooting circumstances. However, for certain circumstances, like when photographing some fabrics and other high-frequency patterns and colors, the Shake Reduction mechanism can simulate the effects of an AA filter to reduce moiré.
- Integrated multi-exposure mode with no frame limit for compositing unlimited sequential exposures in-camera.
- Multi-Segment, Center-Weighted, and Spot metering options are available along with a Highlight-Weighted options that prioritizes keeping highlight values within the dynamic range and allowing shadows to become darker and moodier.
- In addition to stills shooting, the GR IV is also capable of recording Full HD 1080 video at 60p, 30p, and 24p frame rates.