RICOH GF-2 External Flash for RICOH GR IV and GR III-Series Cameras, Super-Compact, Ultra-Lightweight Accessory Flash
Quick take
The RICOH GF-2 is a super-compact, shoe-mounted flash made for Ricoh GR cameras, aiming to add low-light capability without carrying a bulky flash. It’s best for casual night and indoor shooting where you want the camera to handle flash exposure, but the power is limited (guide number 3) and GR III/GR IIIx support requires a firmware update for the dedicated flash mode.
Pros and cons
Pros
- Designed to stay pocket-friendly even when attached to a GR III/IIIx or GR IV.
- USB-C charging with an indicated charging time of about 2 hours.
- Built-in rechargeable battery helps stabilize flash output even if the camera battery is low.
- Works as an automation-focused flash for GR IV, with automatic adjustment of guide number and ISO in the camera’s auto flash mode.
Cons
- Limited maximum power (guide number 3 at ISO 100/m), so it is not ideal for distant subjects or heavy indoor bounce.
- Review evidence suggests the workflow is automation-first, with limited room for manual creative exposure control.
- GR III/GR IIIx require a Function Expansion firmware update to add the “GF-2 Flash Mode.”
- Not water resistant.
What buyers think
Buyer feedback is generally positive about how seamlessly the GF-2 integrates with the Ricoh GR IV, describing it as easy to sync on-camera and useful for low-light and night photos. Several comments also highlight portability and satisfaction with its size and overall build. Where feedback diverges is value and capability: at least some buyers feel the flash is expensive for its relatively limited power, and at least one review notes that the practical exposure options can feel restrictive compared with more manual-focused flashes.
Overall, buyer-review evidence points to a clear pattern: the GF-2 is a “small, GR-friendly add-on” that shines for close-range, snapshot-style flash use more than for demanding manual lighting control.
What the RICOH GF-2 is designed to do
The GF-2 is a shoe-mounted accessory flash built around the Ricoh GR camera experience. Instead of treating the flash as a standalone lighting tool, it leans on camera-assisted automation, including an exposure adjustment workflow (noted as a “GF-2 Flash Mode” on GR III/GR IIIx after the required firmware update). For GR IV users, the camera can automatically adjust flash-related settings in its ISO Auto Flash mode when the GF-2 is attached.
Portability and day-to-day usability
One of the strongest reasons people consider this flash is the form factor. It’s specified as super-compact, with dimensions of about 51 x 31.4 x 17 mm and a weight around 19 g, making it practical to carry even when mounted to a GR camera. If you already choose the GR line for its travel-friendly size, the GF-2’s goal is to add flash support without destroying the “grab-and-go” nature of the setup.
It uses a rechargeable lithium-ion battery built into the flash body (not user-replaceable). Charging happens through a USB Type-C port, with an indicated charging time of about 2 hours, and the flash is rated for approximately 270 flashes when fully charged. A helpful design detail for real-world use is that the built-in flash battery helps stabilize flash discharge level even when the camera’s own battery runs low.
Power and performance limits (the part you should match to your photos)
The GF-2 is rated at a maximum guide number of 3 at ISO 100/m. That instantly frames expectations. This is the kind of flash that makes sense for close subjects, fill-in style use, and accessible night/indoor snapshot photography, but it will not replace a more powerful flash if your priority is lighting distance, bounce work, or aggressively brighter key light.
Operationally, the flash sync is listed as 1/125, and the flash charging approach is designed for quick reuse, but the core limitation remains the modest guide number. If your shooting often involves subjects beyond a few meters, or you want flexible manual power control, you may find the GF-2’s automation and output level are too constrained for your style.
Compatibility and setup gotchas
The GF-2 is intended for Ricoh GR IV and the GR III/GR IIIx series, but GR III/GR IIIx compatibility is specifically tied to a firmware update that adds the GF-2 Flash Mode. If you own a GR III or GR IIIx and want the most integrated experience, plan to update firmware first so the camera exposes the dedicated flash behavior.
Also note that this flash is not water resistant, so it is not suited to wet or rainy outdoor shooting without extra protection.
Pros and cons in plain language
Who it’s best for
- GR IV owners who want a compact on-camera flash that plays well with the camera’s auto flash behavior.
- Photographers who primarily shoot close to mid-range subjects in low light and want an easy, snapshot-oriented workflow.
- Travel and street shooters prioritizing weight and size as much as lighting flexibility.
Who should avoid it (or consider a different option)
- Anyone needing stronger flash output for distance, large rooms, or heavy bounce lighting.
- Users who strongly prefer manual power control and creative lighting over automation-first exposure behavior.
- GR III/GR IIIx owners who are not interested in doing the required Function Expansion firmware update.
Verdict
The RICOH GF-2 is a niche but compelling accessory: a small, GR-friendly flash built for pocketability and camera-assisted flash exposure rather than high-powered, manual lighting. If your GR IV or GR III/IIIx is your compact daily camera and you want quick low-light help for close subjects, it can be a practical match. If you’re shopping for maximum power or more manual control, its guide number and automation-first nature are likely to feel limiting.
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FAQs
Does the RICOH GF-2 work with the ricoh GR IV?
Yes. It’s designed for the GR IV, including flash behavior that can work with the GR IV’s ISO Auto Flash mode for automated adjustment.
Does the GF-2 work with the ricoh GR III or GR iiix?
It’s intended for those cameras, but you’ll need the Function Expansion firmware update to add the “GF-2 Flash Mode” on GR III/GR IIIx.
How powerful is the GF-2?
The maximum guide number is rated at 3 (ISO 100/m). It is best thought of as a compact assist for close-range low-light and fill-style flash use.
How do you charge the GF-2?
It charges via USB Type-C. The indicated charging time is about 2 hours, and the flash is rated for approximately 270 flashes when fully charged.
Is the flash water resistant?
No, it is listed as not water resistant.
Is the GF-2 good for manual flash control?
The GF-2 experience is heavily automation-focused through the GR camera’s flash mode. If you want extensive manual control of flash output, this may not match your expectations.
Specifications
| Product Title | RICOH GF-2 External Flash for RICOH GR IV and GR III-Series Cameras, Super-Compact, Ultra-Lightweight Accessory Flash, Maximum Guide Number of 3 (at ISO 100/m) |
|---|---|
| Category | Electronics > Camera & Photo > Flashes > Shoe Mount Flashes |
| Brand | Ricoh |
| Manufacturer | RICOH IMAGING COMPANY |
| Model Name | GF-2 |
| Model Number | 35306 |
| Color | Black |
| Item Weight | 3.52 ounces |
| Compatible Mountings | RICOH GR IV |
| Battery Average Life | 5 Hours |
| Flash Sync Speed | 1/125 |
| Connectivity Technology | Wired |
| Number of Batteries | 1 Nonstandard Battery batteries required. (included) |
| Wireless Technology | {MY |
| Mount Type | Hot Shoe Mount |
| Hardware Interface | USB Type C |
| Item Dimensions D x W x H | 2"D x 9.1"W x 9.1"H |
| Iso Range | ISO 100-25600 |
| Compatible Devices | RICOH GR IV |
| Audio Recording | No |
| Light Sensitivity | ISO 100-25600 |
| Maximum Shutter Speed | 1/125 seconds |
| Shooting Modes | Automatic |
| Exposure Control Type | Automatic |
| Water Resistance Level | Not Water Resistant |
| Media Type | ProductImage |
| Viewfinder Type | Electronic Viewfinder |
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