Ricoh’s New GR IV HDF Camera

credits: Ricoh

Ricoh has officially added another variant to its GR lineup with the launch of the GR IV HDF. At its core, it is the same GR IV that was announced earlier, built around a new 25.7-megapixel APS-C sensor and an updated 28mm-equivalent f/2.8 lens, along with the familiar GR handling and interface. What makes the HDF version different is the inclusion of Ricoh’s Highlight Diffusion Filter, which can be switched on or off using a dedicated button on the back of the camera.

Ricoh first introduced the HDF concept with the GR III HDF and GR IIIx HDF in 2024, and it carries over unchanged here. The filter is extremely thin and sits close to the lens aperture, using structures printed directly onto its surface with Ricoh’s inkjet technology. These tiny, precisely placed droplets alter how light reaches the sensor, diffusing bright areas and slightly softening edges across the frame. When the filter is disabled, it physically moves out of the optical path, allowing the camera to behave like a normal GR IV.

Because the HDF model replaces the standard built-in ND filter, Ricoh has added a new high-speed electronic shutter capable of speeds up to 1/16,000s, compared to 1/4,000s on the mechanical shutter, helping maintain exposure control when shooting wide open in bright conditions. Aside from that, the camera retains features like Snap Distance Priority, a focus limiter, Full HD 1080/60p video recording, and built-in storage (53GB internally) alongside a microSD card slot. The GR IV HDF is scheduled to ship in late January 2026 for $1,599.95, which is $100 more than the standard GR IV.

You can see full details on B&H’s website here