Ricoh GR IV HDF Digital Camera

Overview

The Ricoh GR IV HDF Digital Camera is a compact fixed-lens snap shooter that adds a built-in Highlight Diffusion Filter (HDF) for a softer, more dreamlike rendering of bright areas in a scene. This selectable filter replaces the ND filter found on the standard edition while keeping the core GR formula intact—fast operation, refined stabilization, improved wireless control, and a 28mm-equivalent field of view.

With a 25.7MP APS-C BSI CMOS sensor, updated GR ENGINE 7 processing, and responsive autofocus, it’s designed for quick everyday shooting, street photography, and travel—now with a mellow, diffused highlight look on demand.

Core Features

• Built-in Highlight Diffusion Filter creates softer, blurred highlights for a nostalgic look.
• 25.7MP APS-C BSI CMOS sensor delivers clean detail with reduced noise.
• Redesigned 28mm-equivalent f/2.8 lens improves sharpness and focusing speed.
• Improved autofocus with enhanced face recognition and subject tracking.
• 5-axis Shake Reduction compensates for up to 6 stops of camera shake.
• 3.0" 1.04m-dot touchscreen LCD with improved outdoor visibility features.
• 53GB built-in memory plus a microSD card slot for flexible storage.
• Wi-Fi 6 and Bluetooth connectivity support the GR WORLD app for transfer and control.

Highlight Diffusion Filter Controls

• HDF can be toggled on/off using a dedicated control (rear Fn button marked “HDF”).
• The HDF function can be reassigned to other controls if preferred.
• A silver-colored shutter release button visually distinguishes the HDF version.

Performance, Autofocus, and Stabilization

The GR IV HDF pairs its 25.7MP BSI CMOS sensor with the GR ENGINE 7 processor for improved low-light performance, faster startup, and quicker focusing. Autofocus responsiveness is improved, hunting is reduced, and both face recognition and subject tracking are refined for more dependable everyday shooting.

• Full Press Snap lets you override AF instantly by focusing at a preset distance.
• 5-axis Shake Reduction compensates for more types of movement for steadier handheld results.

Lens, Shooting Options, and Video

The fixed 28mm-equivalent lens remains central to the GR experience, balancing a wide, everyday field of view with an f/2.8 maximum aperture. The updated optical design uses a 7-elements-in-5-groups layout to improve clarity and resolution while remaining compact.

• Dedicated Macro mode supports close-up work within an approximately 6.1 to 11.9 cm working range.
• Built-in crop modes simulate 35mm and 50mm fields of view.
• Electronic shutter enables shooting up to 1/16,000 sec for bright conditions.
• Records Full HD 1920 x 1080 video up to 60p.

Design, Storage, and Connectivity

Maintaining a lightweight magnesium alloy build, the GR IV HDF refines handling with a slimmer profile, redesigned controls, and a dial-style ADJ control for intuitive operation. Storage is expanded with 53GB internal memory and a switch to microSD media, and USB-C supports in-camera charging and data transfer.

Wireless connectivity uses Wi-Fi and Bluetooth for stable pairing with the GR WORLD app, enabling file transfers, remote shutter control, and location data transfer from a mobile device.