Ricoh officially released the new Ricoh GR IV HDF camera with Highlight Diffusion Filter (see the development announcement). Pre-orders are now open at:
Additional information and specifications:
PARSIPPANY, NJ, December 16, 2025 — Ricoh Imaging Americas Corporation today announced the launch of the RICOH GR IV HDF. Based on the RICOH GR IV premium digital compact camera, this new model incorporates an HDF (Highlight Diffusion Filter) designed to deliver a mellow, diffused expression with a single-action control.
While inheriting the fundamental merits of the GR IV base model – exceptional image quality, flawless point-and-shoot operation, and outstanding portability – this new model also incorporates the RICOH-original HDF(Highlight Diffusion Filter), enabling the user to 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 each of these locations, visitors can try out this new model firsthand.
| Pricing and Availability |
The RICOH GR IV HDF will be available late January for a manufacturer’s suggested retail price of $1,599.95.
| Main features of the new RICOH GR IV HDF |
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 creative intention.
Note: The development process of the HDF is explained in greater detail in the technologies section of the official RICOH website.
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 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 (Neutral Density) filter.
| 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 to ISO 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:【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. |
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| 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 |
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| 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, Custom1, Custom2, Custom3 | |
| 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) |
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| 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 (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, RGB histogram), Grid display (3×3 Grid, 4×4 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) |
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| 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 |
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| 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 to 2483.5MHz 5.2GHz : 5150MHz to 5250MHz (Not supported in some regions) 5.8GHz : 5725MHz to 5850MHz (Not supported in some regions) |
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| Communication bandwidth | 2.4GHz : 20MHz 5.2GHz : 20/40/80MHz 5.8GHz : 20/40/80MHz |
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| Security | Authentication: WPA2™, WPA3™ / Encryption: AES | |
| 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 |
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| 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. |
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| 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. |
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| 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 |
Differences between the Ricoh GR III HDF and GRIIIx HDF cameras
Highlight Diffusion Filter sample photos from the new Ricoh GR III/x HDF cameras