Ricoh GR IV Monochrome Digital Camera

What’s new?

Ricoh’s GR IV Monochrome takes a different path from both the standard GR IV and the GR IV HDF. The original GR IV uses a conventional colour sensor, while the GR IV HDF retains that sensor and adds a Highlight Diffusion Filter for softer highlights. The Monochrome version replaces both approaches with a monochrome-dedicated APS-C CMOS sensor. With no colour filter array or interpolation, each pixel records luminance directly, producing higher perceived sharpness, smoother tonal gradation, and more natural fine detail than colour-based models converted to black and white.

A built-in physical red filter, unique to the Monochrome model, shapes skies, foliage and skin tones optically rather than through processing. Dedicated monochrome Image Control modes further refine contrast and grain specifically for black-and-white output. Apart from the absence of the ND filter found in the standard GR IV, the handling remains familiar, with this version aimed at photographers who want to capture in monochrome from the outset rather than reinterpret colour files later.

A sensor for monochrome capture

The Ricoh GR IV Monochrome features a new monochrome-dedicated anti-aliasing (AA) APS-C CMOS sensor with approximately 25.74 million effective pixels. Each pixel records brightness directly, without passing through red, green, or blue filters like in general colour sensors. The monochrome sensor produces cleaner edges, finer detail, and a more continuous tonal roll-off, especially in mid-tones and highlights for black-and-white shots. Fine textures read more clearly, and high-ISO grain appears more photographic than processed.

Built-in red filter

A physical red filter is built directly into the lens unit and can be switched on or off instantly. It behaves exactly as a traditional red filter would on black-and-white film, darkening blue skies, improving the separation of clouds, and increasing contrast in foliage and skin tones. Because the filter sits in the optical path, the effect is visible in real time, making exposure and composition easier to judge on the spot.

Monochrome Image Control with character

Ricoh has developed Image Control profiles specifically for monochrome work. “Solid” applies a firm tonal curve with crisp edge definition, giving images a clean, graphic feel. “Grainy” keeps highlights from blowing and shadows from blocking while introducing visible grain that holds together even on small screens. These controls feel tuned for photographers who want to shape mood at capture rather than relying on heavy processing later.

Familiar GR handling, refined for focus

The GR IV Monochrome keeps the GR IV series’ defining traits: quick start-up, responsive autofocus and intuitive handling. Five-axis in-body image stabilisation (IBIS) provides up to six stops of compensation, which is particularly useful when working in low light or while moving. The electronic shutter extends up to 1/16000s, allowing the lens to stay wide open in bright conditions without resorting to external filters. Like its counterparts, the GR IV monochrome suits photographers capturing street scenes, everyday life, architecture, and quiet landscapes, where the camera’s fast response and discreet size let you work instinctively and close to the subject.

A design that matches the intent

The GR IV Monochrome is finished with a deliberately restrained exterior that sets it apart from the standard GR IV and GR IV HDF. The magnesium-alloy body, shutter release button and front ring cap are all finished in the same matte black coating, reducing reflections and giving the camera a uniform, tactile feel in the hand. The front GR logo is a semi-gloss black, offering a subtle contrast without drawing attention, while the power button illumination changes to white rather than green. Together, these small but deliberate choices reinforce the camera’s monochrome focus.

What’s in the box?

• 1 x Ricoh GR IV Monochrome Digital Camera
• 1 x Rechargeable Battery DB-120
• 1 x USB Cable I-USB198
• 1 x Hand Strap O-ST198