2025.12.17
RICOH GR IV HDF：
Launched to create mellow, diffused expression in highlighted areas
TOKYO, December 17, 2025 -- RICOH IMAGING COMPANY, LTD, is pleased to announce the launch of the RICOH IV HDF. Based on the RICOH GR IV high-end digital compact camera, this new model incorporates an HDF (Highlight Diffusion Filter) designed to deliver mellow, diffused expression with a single-action control.
While inheriting the fundamental merits of the base model such as exceptional image quality, this new model also incorporates the RICOH-original HDF (Highlight Diffusion Filter), which lets the user, instantly and with a single action, capture mellow, soft images with diffused highlight areas, in addition to the clear, sharply focused images made famous by its base model. This creative versatility expands the visual expression boundaries of snapshot photography.
The RICOH GR IV HDF is scheduled to be showcased at GR SPACE in Tokyo, Shanghai, Beijing and Brisbane beginning on Wednesday, December 17, 2025; in all these locations, visitors can try out this new model firsthand.
Main Features
- Single-action switching to the built-in HDF, to create mellow, soft images
The GR IV HDF incorporates the RICOH-original HDF (Highlight Diffusion Filter), which is designed to emphasize highlights and produce mellow, soft images. Developed by taking advantage of the advanced inkjet technology RICOH has cultivated over the years, this special-effect filter diffuses highlight areas and creates a blurred effect along the image's edges, making it possible to capture nostalgic images resembling those captured in film photography or movies. Since the HDF can be instantly switched on and off with a single action, it lets the user alternate between two completely different visual expressions -- clear, sharply focused images representative of the RICOH GR series, and mellow, soft images captured by the HDF -- depending on the subject or create intention.Note: The development process of the HDF is explained in greater detail in the technologies section of the official RICOH website.
- High-speed electronic shutter with a top speed of 1/16,000 second for shooting at extremely bright locations
In addition to a conventional mechanical shutter unit, the GR IV HDF also features an electronically controlled shutter mechanism,* which allows the user to intentionally raise the shutter speed up to 1/16,000 second, making it possible to capture images at extremely bright locations while still setting a larger aperture.* This mechanism can also be installed on the RICOH GR IV using new function expansion firmware (scheduled to be released following the launch of the RICOH GR IV HDF).
- The color of the shutter-release button has been changed from the GR IV's black to grayish silver, to symbolize the camera's ability to instantly shift the image's visual expression. The default setting of the Fn (Function) button is set to the on/off action of the HDF.*
* The default setting of the Fn button can be changed to other functions.
Note: All other functions of the RICOH GR IV HDF are identical to those of the RICOH GR IV, except for the availability of the ND (Neutra Density) filter.
| About Ricoh |
Ricoh is a leading provider of integrated digital services and print and imaging solutions designed to support digital transformation of workplaces, workspaces and optimize business performance.
Headquartered in Tokyo, Ricoh's global operation reaches customers in approximately 200 countries and regions, supported by cultivated knowledge, technologies, and organizational capabilities nurtured over its 85-year history. In the financial year ended March 2025, Ricoh Group had worldwide sales of 2,527 billion yen (approx. 16.8 billion USD).
It is Ricoh's mission and vision to empower individuals to find Fulfillment through Work by understanding and transforming how people work so we can unleash their potential and creativity to realize a sustainable future.
For further information, please visit www.ricoh.com
Major Specifications
| 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: Primary color filter CMOS. Size: 23.3mm x 15.5mm |
| Effective Pixels | Approx. 25.74 megapixels | |
| Sensitivity (Standard output) | ISO100～204800: 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:
|
| Movie | File Format: MPEG4 AVC/H.264 (MOV) Recorded Pixels: Full HD (1920x1080, 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 AF, Select AF, Pinpoint AF, Tracking AF, Continuous AF, MF, Snap(0.3m,1m, 1.5m, 2m, 2.5m, 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 | |
| White Balance | Auto White Balance, Auto WB (Warmth Pri.), Auto WB (White Pri.), Daylight, Shade, Cloudy, Fl. - Daylight Color, Fl. - Daylight White, Fl. - Cool White, Fl. - Warm White, Tungsten, CTE, Manual White Balance, Color Temperature | |
| Fine Adjustment | Adjustable ±14 steps on A-B axis or G-M axis | |
| 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, Vivid, Monotone, Soft Monotone, Hard Monotone, Hi-Contrast B&W, Negative Film, Positive Film, Cinema (Yellow), Cinema (Green), Bleach Bypass, Retro, Cross Processing, HDR Tone, Custom1, Custom2, Custom3 Adjust parameters: Saturation, Hue, High/Low Key Adjustment, Contrast, Contrast (Highlight), Contrast (Shadow), Sharpness, Shading, Clarity, Toning, Filter Effect, Grain Effect, HDR Tone Level, Color Tone (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 | |
| HDF (Hight Light Diffusion Filter) | ON, OFF | |
| Display | Display magnification (4x, 16x), Grid display (4x4 Grid, 3x3 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, RGB histogram), Grid display (3x3 Grid, 4x4 Grid), Bright area warning, Auto Image Rotation, Folder display, Calendar Filmstrip Display |
| Base Parameter Adjustment | Normal editing, Monotone editing Parameter: Brightness, Saturation, Filter Effect, Hue, Toning, Contrast, Sharpness (Adjust parameter varies depending on the selected editing setting) |
|
| 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, White Balance, 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, White Balance Adjustment, Color Moiré Correction, 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 - 2483.5MHz 5.2GHz : 5150MHz - 5250MHz (Not supported in some regions) 5.8GHz : 5725MHz - 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 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 Battery DB-120, USB Cable I-USB198, Handstrap O-ST198 | |
| Language | English, French, Germany, Spanish, Portuguese, Italy, Dutch, Danish, Swedish, Finnish, Polish, Czech, Hungarian, Turkey, Greek, Russian, Thai, Korean, Simplified Chinese, Traditional Chinese, Japanese | |
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