Achieving the ultimate in monochrome expression

The RICOH GR IV Monochrome is exclusively designed for monochrome photography,

With the exceptional image quality, quick response, and outstanding portability that the GR series is known for, the GR IV Monochrome incorporates a monochrome-dedicated image sensor. By eliminating the color filter used to acquire color information, as well as the interpolation process required to generate color images, the camera can fully draw out the capabilities of the high-performance GR lens, delivering refined rendering and rich tonal gradation
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The built-in red filter enables more distinctive monochrome photography, and new Image Control options – dedicated to monochrome imaging – provide deep and diverse monochrome expressions.

 

 

GR IV camera
Language Information:
The GR IV Monochrome will launch with regional language support in English, Spanish, and French

Sample Gallery

  • Photo by MITSUO SUZUKI / GR IV Monochrome

  • Photo by MITSUO SUZUKI / GR IV Monochrome

  • Photo by MITSUO SUZUKI / GR IV Monochrome

  • Photo by MITSUO SUZUKI / GR IV Monochrome

  • Photo by MITSUO SUZUKI / GR IV Monochrome

  • Photo by MITSUO SUZUKI / GR IV Monochrome

High Image Quality

When every ray of light is captured to its limit, a compelling drama emerges.

The imaging system is engineered exclusively for monochrome photography.

Optics That Truly Shine in Monochrome
F2.8 GR Lens

The camera features the 18.3mm (28mm in 35mm equivalent focal length) F2.8 GR lens. While inheriting the established design philosophy and incorporating successive advances in optical technology, the lens employs a 5-group 7-element construction, with a large, aspherical high-precision molded glass lens added as the final lens. To fully realize the performance of this lens, the imaging system has been optimized specifically for the monochrome-dedicated GR. The monochrome-dedicated image sensor is not equipped with a color filter and performs no interpolation processing, enabling the GR lens’s outstanding optical performance to be captured in its entirety. The result is exceptional resolution extending to the edges of the frame, rich gradation, and low distortion. The true potential of the GR lens is fully revealed in monochrome.

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GR IV Monochrome : 18.3 mm (approx. 28 mm in 35 mm equivalent focal length), F2.8, 7 elements 5 groups
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GR IV Monochrome (wave optic MTF, 15 lines/mm, 45 lines/mm)
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Faithful Light Capture
Monochrome-Dedicated CMOS Image Sensor

To pursue the highest level of monochrome expression, a dedicated image sensor was developed. It does not use a color filter to acquire color information; instead, each pixel captures the brightness information of the subject and directly translates it into a monochrome image. This allows the sensor to receive more light information than a conventional color image sensor, resulting in sharper images with enhanced detail and improved sensitivity.

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GR IV Monochrome Image Sensor
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GR IV Monochrome
With its monochrome-dedicated sensor, the brightness information acquired by each pixel is applied directly to images without interpolation processing. This achieves nuanced detail, high resolution, and exceptional reproduction of tones for outstanding monochrome rendering.
Color Image Sensor
Image illustrating the above contentColor Image Sensor
Conventional color sensors use color filters, acquiring one color information per pixel and generating a color image through interpolation processing using the color information from multiple pixels. This color image is converted to a monochrome image.

Dedicated Monochrome Image Processing
GR ENGINE 7

To maximize the performance of the monochrome-dedicated image sensor, a new image-processing engine was developed. It performs none of the interpolation processing that is indispensable in color image sensors, allowing it to make full use of the brightness information captured by each pixel. This delivers high-definition and nuanced detail as well as rich tonal depth, achieving the imaging power demanded of a GR designed exclusively for monochrome photography.

Expressive High-ISO Imaging
Maximum ISO 409600

With no color filter, the monochrome-dedicated sensor achieves higher sensitivity, expanding the usable ISO sensitivity range to ISO 160 to 409600. Even at high sensitivities, image detail remains abundant. Even at sensitivities where noise becomes noticeable in color models, this sensor renders a fine, grain-like texture at the pixel level. This allows shooting with a sense similar to the grainy appearance produced when black-and-white film is push-processed. In monochrome photography, high-ISO image quality can be used proactively as an expressive element.

When using ISO AUTO, the sensitivity range is ISO 160 to 25600.

High Resolution Made Possible by Monochrome
5-axis, 6-stop Image Stabilization

The camera is equipped with a 5-axis image stabilization mechanism that corrects angular shake, rotational shake, and even shift shake by driving the image sensor. With a high correction performance equivalent to 6.0* stops in shutter speed, it expands the limits of snap shooting. In the monochrome-dedicated imaging system, which makes use of brightness information captured by all pixels, this image stabilization is also highly effective. By compensating for the impact of camera shake, it produces high-resolution, high-definition monochrome images.

※Up to 6.0 stops at the center, and up to 4.0 stops on the periphery. CIPA 2024 standard compliant. Yaw/Pitch/Roll correction performance.

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GR IV High Image Quality Page

For other features, please refer to the “High Image Quality” page highlighting the GR IV’s characteristics.

Specifications    As of January 14, 2026

Lens
Lens Construction 7 elements in 5 groups (3 aspherical lens elements)
Focal Length, Aperture 18.3mm (Approx. 28mm in 35mm equivalent focal length), F2.8~F16
Image Capture Unit
Image Sensor Type: Monochrome, CMOS. Size: 23.3 x 15.5 (mm)
Effective Pixels Approx. 25.74 megapixels
Sensitivity (Standard output) ISO160 to ISO 409600: Auto (ISO Auto Lower/Upper Limit and Minimum Shutter Speed can be set), Manual
Image Stabilization Sensor-shift shake reduction “SR” (5-axis)
AA Filter Simulator Moiré reduction using SR unit (Off, Low, High)
Dust Removal Image sensor cleaning using ultrasonic vibrations “DR II”
File Formats
Still Image File Format: RAW (DNG) 14bit, JPEG (Exif 2.3), DCF2.0 compliant
Color Space: sRGB、AdobeRGB
Recorded Pixels:
【3:2】L(26M:6192×4128),M(16M:4944×3296),S(8.2M:3504×2336),XS(2.5M:1920×1280),
【4:3】L(23M:5504×4128),M(15M:4400×3296),S(7.3M:3120×2336),XS(2.8M:1920×1440),
【1:1】L(17M:4128×4128),M(11M:3296×3296),S(5.5M:2336×2336),XS(1.6M:1280×1280),
【16:9】L(22M:6192×3480),M(14M:4944×2784),S(6.9M:3504×1968),XS(2.1M:1920×1080)
Movie File Format: MPEG4 AVC/H.264 (MOV)
Recorded Pixels: Full HD (1920×1080, 60p/30p/24p), Sound: Built-in stereo microphone
Recording Time: Up to 25 minutes or 4GB; automatically stops recording if the internal temperature of the camera becomes high.
Storage Medium Internal Memory (Approx. 53GB), microSD/microSDHC/microSDXC Memory Card (Conforms to UHS-I standards)
Focus
Type Hybrid AF (Image plane phase-matching and Contrast detection)
Focus Mode Auto-area AF, Zone Select AF, Select AF, Pinpoint AF, Tracking AF, Continuous AF, MF, Snap(0.3m,1m, 1.5m, 2m, 2.5m, 3.5m, 5m,∞), ∞
Focus Limiter Near Side, Far Side, OFF
Full Press Snap Performs shooting by focusing at the Snap distance with a single press of the Shutter Release Button or a touch of the LCD Monitor
Face/Eye Detection ON, Use only in Auto-area, OFF
Focus Range (From lens face) Normal: Approx. 0.1m~∞, Macro Mode: Approx. 0.06m~0.15m
Exposure
Exposure Mode Program AE, Aperture Priority AE, Shutter Priority AE, Snap Distance Priority AE, Manual Exposure
Metering Mode Multi-segment, Center-weighted, Spot, Highlight-weighted
Shutter Speed 1/4000 sec. – 30 sec. (Limit by aperture setting F2.8: 1/2500 sec, F5.6 or greater: 1/4000 sec.)
Timed Exposure (10sec. – 20min.), Bulb, Time
* Shutter speed can be set up to 1/16000 sec. with the electronic shutter
EV Compensation Still Image: ±5EV, 1/3EV steps, Movie: ±2EV, 1/3EV steps
Drive Mode
Drive Single Frame Shooting, Continuous Shooting, Bracketing, Multi-exposure, Interval Shooting, Interval Composite
Self-timer 10 sec., 2 sec., OFF
Shooting Functions
Crop OFF,35mm,50mm
Image Control Standard, Solid, Soft, Hi-Contrast, Grainy, HDR Tone, Custom1, Custom2, Custom3
Adjust parameters: High/Low Key Adjustment, Contrast, Contrast (Highlight), Contrast (Shadow), Sharpness, Shading, Clarity, Toning, Grain Effect, HDR Tone Level (Adjust parameter varies depending on the selected image setting)
Dynamic Range Correction Highlight Correction, Shadow Correction
Noise Reduction Slow Shutter Speed Noise Reduction, High-ISO Noise Reduction
Horizon Correction SR On: correction up to 1 degrees, SR Off: correction up to 1.5 degrees
Red Filter ON, OFF
Display Display magnification (4x, 16x), Grid display (4×4 Grid, 3×3 Grid), Histogram, Bright area warning, Electronic Level
Playback Functions
Playback View Single frame, Multi-image (20, 48 frames), Display magnification (up to 16x, 100% view and Quick Zoom view available), Histogram (Y histogram), Grid display (3×3 Grid, 4×4 Grid), Bright area warning, Auto Image Rotation, Folder display, Calendar Filmstrip Display
Base Parameter Adjustment Parameter: Brightness, Toning, Contrast, Sharpness
RAW Development RAW file select: Select Single Image, Select Multiple Images, Select a folder, Select a shooting date
RAW Development Parameter: Aspect Ratio, JPEG Recorded Pixels, Color Space, Image Control, Peripheral Illumination Correction, Sensitivity, High-ISO Noise Reduction, Shadow Correction
Edit Delete, Protect, Image Rotation, Image Copy, File Transfer, Resize, Cropping (Aspect ratio and Slant adjustment available), Levels Adjustment, Movie Edit (Cut), Movie Edit (Divide), Save Movie Frame as Image
LCD Monitor
Type 3.0 inch TFT color LCD (aspect ratio 3:2)、Approx. 1037K dots, Wide viewing angle, Air-gapless tempered glass
Touch Screen Capacitive sensing method
Adjustments Brightness, Saturation, Blue/Amber, Green/Magenta, Outdoor View Setting: Auto, Manual(±2 Steps)
Wireless LAN
Standards 2.4GHz : IEEE802.11 b/g/n/ax
5.2GHz : IEEE802.11 a/n/ac/ax (Not supported in some regions)
5.8GHz : IEEE802.11 a/n/ac/ax (Not supported in some regions)
Operating frequency band range 2.4GHz : 2400MHz to 2483.5MHz
5.2GHz : 5150MHz to 5250MHz (Not supported in some regions)
5.8GHz : 5725MHz to 5850MHz (Not supported in some regions)
Communication bandwidth 2.4GHz : 20MHz
5.2GHz : 20/40/80MHz
5.8GHz : 20/40/80MHz
Security Authentication: WPA2™, WPA3™ / Encryption: AES
Bluetooth®
Standards Bluetooth® v5.3 (Bluetooth Low Energy)
Operating Frequency Band Range 2400 to 2483.5 MHz
Interfaces
USB Type-C™ Battery Recharge/Power Supply (Optional AC Adapter required), Data Transfer: MTP, Video output: DisplayPort over USB-C (DisplayPort Alternative Mode)
Hotshoe Compatible with dedicated flash
Flash Mode: Flash On, Flash On+Red-eye, Slow-speed Sync, Slow Sync+Red-eye
Flash Output: AUTO, 1/1, 1/4
Lens adapter pin Available
Power Supply
Battery Type Rechargeable Li-ion Battery DB-120
AC Adapter AC adapter compatible with USB Power Delivery, AC adapter (D-AC166; optional)
* The camera is compatible with USB Power Delivery, but is not certified with the USB Implementers Forum logo.
Battery Life Number of recordable images: Approx. 250 images,
* With a fully-charged Rechargeable Lithium-ion Battery under the temperature at 23°C. Tested in compliance with CIPA standard. Actual results may vary depending on the shooting condition.
Playback time: Approx. 240 minutes
* The playback time is a guide based on RICOH’s measurement method . The actual number differs according to usage conditions.
Dimensions and Weight
Dimensions Approx. 109.4(W)×61.1(H)×32.7(D)mm (excluding protrusions)
Lens part:31.3(D)mm
Body part:24.5(D)mm
Weight Approx. 262g (Included dedicated battery and SD memory card), Approx. 228g (Body only)
Included Accessories Rechargeable Li-ion Battery DB-120, USB Cable I-USB198, Handstrap O-ST198

 

Storage

Mode Fomat/Size Aspect Ratio Focal Length* Number of Recorded pixels Internal Memory 53GB Memory Card 64GB
Still image RAW 3:2 28mm 26M:6192×4128 937 1051
3:2 35mm 16M:4944×3296 979 1099
3:2 50mm 8.2M:3504×2336 1018 1142
4:3 28mm 23M:5504×4128 949 1065
4:3 35mm 15M:4400×3296 985 1106
4:3 50mm 7.3M:3120×2336 1020 1145
1:1 28mm 17M:4128×4128 974 1094
1:1 35mm 11M:3296×3296 1004 1127
1:1 50mm 5.5M:2336×2336 1030 1156
16:9 28mm 22M:6192×3480 955 1072
16:9 35mm 14M:4944×2784 990 1111
16:9 50mm 6.9M:3504×1968 1023 1148
RAW+ 3:2 28mm 26M:6192×4128 708 795
3:2 35mm 16M:4944×3296 804 903
3:2 50mm 8.2M:3504×2336 913 1025
4:3 28mm 23M:5504×4128 736 826
4:3 35mm 15M:4400×3296 826 927
4:3 50mm 7.3M:3120×2336 926 1040
1:1 28mm 17M:4128×4128 796 893
1:1 35mm 11M:3296×3296 874 981
1:1 50mm 5.5M:2336×2336 957 1074
16:9 28mm 22M:6192×3480 747 839
16:9 35mm 14M:4944×2784 835 938
16:9 50mm 6.9M:3504×1968 932 1047
[L]
(JPEG)
3:2 26M:6192×4128 2911 3267
4:3 23M:5504×4128 3261 3660
1:1 17M:4128×4128 4338 4869
16:9 22M:6192×3480 3443 3864
[M]
(JPEG)
3:2 16M:4944×3296 4519 5071
4:3 15M:4400×3296 5103 5728
1:1 11M:3296×3296 6778 7607
16:9 14M:4944×2784 5355 6011
[S]
(JPEG)
3:2 8.2M:3504×2336 8853 9936
4:3 7.3M:3120×2336 9859 11066
1:1 5.5M:2336×2336 13146 14754
16:9 6.9M:3504×1968 10581 11875
[XS]
(JPEG)
3:2 2.5M:1920×1280 27114 30431
4:3 2.8M:1920×1440 25519 28641
1:1 1.6M:1280×1280 39439 44264
16:9 2.1M:1920×1080 33371 37454

* 35mm equivalent focal length

(min:sec)

Mode Size Aspect Ratio Frame Rate Number of Recorded pixels Internal Memory 53GB Memory Card 64GB
Movie** Full HD (16:9) 60p 1920×1080 1:26’56” 1:37’38”
(16:9) 30p 1920×1080 2:50’51” 3:11’53”
(16:9) 24p 1920×1080 3:31’44” 3:57’48”

** The maximum recording time per shooting is 25minutes or 4GB.

 

Operating Environment

Windows® Windows®11, Windows® 10
Mac macOS 26 Tahoe / macOS 15 Sequoia / macOS 14 Sonoma / macOS 13 Ventura /
macOS 12 Monterey / macOS 11 Big Sur
  • External flash [GF-2]

  • Rechargeable Li-ion battery [DB-120]

  • Battery charger [BJ-12]

  • Wide Conversion Lens (GW-4)
    Model No. 30248

  • Lens adapter [GA-3]

  • External Viewfinder GV-1
    Model No. 172798

  • Mini External Viewfinder GV-2
    Model No. 175093

  • Ring cap [GN-3 (BK)]

  • Ring cap [GN-3 (DG)]

  • Metal hot shoe cover [GK-2]

  • Soft Case GC-11
    Model No. 30485

  • Soft case [GC-12]

  • Finger Strap GS-4

  • Hand Strap GS-2
    Model No. 173383

  • Neck Strap GS-3
    Model No. 175810

  • Neck Strap ST-2

  • AC Adapter Kit K-AC166
    Model No. 38372

 

Works of GR IV Monochrome



Photo by MITSUO SUZUKI

Camera RICOH GR IV Monochrome ISO sensitivity 320
Focal length 28mm (in 35mm format equivalent) Exposure compensation 1EV
Shutter speed 1/100sec Image Control Soft
Aperture F5.6 Recorded pixels 6192×4128 pixels
Shooting mode Av File size 16,633KB

Photo by MITSUO SUZUKI

Camera RICOH GR IV Monochrome
Focal length 28mm (in 35mm format equivalent)
Shutter speed 1/640sec
Aperture F8
Shooting mode Av
ISO sensitivity 160
Exposure compensation -1EV
Image Control Standard
Recorded pixels 6192×4128 pixels
File size 15,851KB

Photo by MITSUO SUZUKI

Camera RICOH GR IV Monochrome
Focal length 28mm (in 35mm format equivalent)
Shutter speed 1/400sec
Aperture F5.6
Shooting mode Av
ISO sensitivity 320
Exposure compensation 0EV
Image Control Standard
Recorded pixels 6192×4128 pixels
File size 14,999KB

Photo by MITSUO SUZUKI

Camera RICOH GR IV Monochrome
Focal length 28mm (in 35mm format equivalent)
Shutter speed 1/30sec
Aperture F4
Shooting mode Av
ISO sensitivity 250
Exposure compensation -0.7EV
Image Control Solid
Recorded pixels 6192×4128 pixels
File size 16,620KB

Photo by MITSUO SUZUKI

Camera RICOH GR IV Monochrome
Focal length 28mm (in 35mm format equivalent)
Shutter speed 1/125sec
Aperture F5
Shooting mode Av
ISO sensitivity 160
Exposure compensation -1.7EV
Image Control Solid
Recorded pixels 6192×4128 pixels
File size 10,098KB
  • Rechargeable Li-ion Battery DB-120
  • USB Cable I-USB-198
  • Handstrap