Ricoh GXR GR Lens A12 28mm F2.5 Camera Module
The Ricoh GR Lens A12 28mm F2.5 is a 12MP APS-C camera — with 720p video. Check GearFocus for current availability, with buyer protection on every purchase.

Ricoh GXR GR Lens A12 28mm F2.5 Camera Module
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Overview — Ricoh GR Lens A12 28mm F2.5
Key Features — Ricoh GR Lens A12 28mm F2.5
12MP APS-C Sensor: The integrated APS-C sensor delivers 12MP resolution at up to 4288x2848 pixels, offering image quality well above typical compact cameras of its era.
28mm f/2.5 Fixed Lens: The GR-lineage wide-angle lens is permanently coupled to the sensor, ensuring optical alignment is factory-optimized for this specific imaging unit.
Modular GXR System: This self-contained module snaps into the GXR body and replaces both the lens and sensor simultaneously, a unique approach to system camera design.
Contrast Detection AF: Contrast-detect autofocus prioritizes focus accuracy in a fixed-lens configuration suited to deliberate, still-subject shooting.
ISO 200–3200 Range: Native sensitivity covers practical everyday and low-light conditions without relying on extended or boosted ISO values.
3fps Burst Mode: Continuous shooting at up to 3 frames per second gives photographers the ability to capture sequences of fast-moving subjects.
Specifications — Ricoh GR Lens A12 28mm F2.5
| Spec | Detail |
|---|---|
| Use Cases | Travel, Documentary, Macro |
| Type | Other |
| Sensor | APS-C |
| Resolution | 12MP |
| ISO Range | 200 – 3200 |
| AF System | Contrast Detection |
| Max Photo Resolution | 4288x2848 |
| Burst Rate | 3 fps |
| Max Video Resolution | 720p |
| Max Frame Rate | 30fps |
| Storage Media | SD, SDHC, SDXC |
| Weather Sealing | None |
Description — Ricoh GR Lens A12 28mm F2.5
The Ricoh GXR GR Lens A12 28mm F2.5 Camera Module is a purpose-built imaging unit for the GXR modular camera system. It houses an APS-C sensor producing 12MP stills at a maximum resolution of 4288x2848 pixels. The ISO sensitivity range spans 200 to 3200, and burst shooting is supported at up to 3 frames per second.
Autofocus is handled via contrast detection, and the lens is entirely fixed — integrated directly with the sensor as part of the module's design philosophy. For video, the module records at up to 720p at 30fps. Storage is covered by SD, SDHC, and SDXC card compatibility.
There is no image stabilization — neither in-body nor digital — so steady shooting technique is important. This module is a compelling option for GXR system users looking for a dedicated wide-angle unit with a proper APS-C sensor at its heart.
Pros — Ricoh GR Lens A12 28mm F2.5
- ✓APS-C sensor with 12MP resolution delivers a maximum image output of 4288x2848 pixels
- ✓Wide ISO range of 200–3200 provides flexibility across varied lighting conditions
- ✓Burst mode capable of 3 frames per second for continuous shooting
Cons — Ricoh GR Lens A12 28mm F2.5
- ✗No image stabilization of any kind — neither in-body nor digital
- ✗ISO ceiling of 3200 is modest by modern standards, limiting extreme low-light performance
- ✗Video tops out at 720p at 30fps, well below current HD and 4K standards
Reviews — Ricoh GR Lens A12 28mm F2.5
Videos — Ricoh GR Lens A12 28mm F2.5
This Ain't No Ricoh GR... — Tom Calton