Ricoh GR
NiSi 0.78x Wide Angle Converter PR-10 for Ricoh GR III, GR IIIx and GR IV
A wider view on your Ricoh GR: 21mm on GR III and GR IV, about 31mm on GR IIIx.
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SKU: uknisi1605a
- Official NiSi UK Guarantee
Key features
- 0.78x conversion From 28 to 21mm equivalent on GR III and GR IV.
- Lens only or kit With the PR-11, PR-12 or PR-8 adapter for your GR.
- Macro friendly Autofocus, metering and Macro mode work as usual.
- Nano coating Less flare and ghosting, metal caps included.
- The lens only needs the NiSi 49mm adapter for your model, sold separately or in the kit.
What’s in the kit
- PR-10 0.78x wide angle converter 1
- Front and rear metal caps 2
- NiSi 49mm adapter for your GR kits only
Full description
The NiSi PR-10 is a 0.78x wide angle conversion lens for the Ricoh GR series. It screws onto the 49mm thread of the NiSi adapter and widens the frame without changing camera: more sky in your landscapes, more room in interiors and street shots, the same pocket-sized GR.

How wide it gets
- Ricoh GR III and GR IV: from 28mm to 21mm equivalent.
- Ricoh GR IIIx: from 40mm to about 31mm equivalent.
Features
- Works with the GR’s Macro mode: go from a wide view to a close-up detail without taking the lens off.
- Multi-layer nano anti-reflective coating: less flare and ghosting when you shoot into the light.
- Precision-machined aluminium alloy body, light and strong.
- Autofocus, exposure and metering work as always: there’s no setting to change.
- Front and rear metal caps included.

Lens only or kit
To fit the converter you need the NiSi 49mm adapter for your model, which takes the place of the original Ricoh ring and locks with a mechanical catch. If you don’t have it yet, choose the kit: converter and adapter together.
- Lens only: PR-10 0.78x converter with its two caps.
- GR III kit: PR-10 converter with its two caps and the PR-11 adapter for Ricoh GR III.
- GR IIIx kit: PR-10 converter with its two caps and the PR-12 adapter for Ricoh GR IIIx.
- GR IV kit: PR-10 converter with its two caps and the PR-8 adapter for Ricoh GR IV.

When you take the converter off, the adapter keeps its 49mm thread for your filters: ND, polariser, Black Mist, UV.
Compatibility
Ricoh GR III, GR IIIx and GR IV, with the NiSi 49mm adapter for your model. The adapters are not interchangeable between the three models.
Compatibility and codes
Ricoh GR III, GR IIIx, GR IV · NiSi 49mm adapter
| Option | Code |
|---|---|
| Lens only | uknisi1605 |
| Lens + GR III adapter (PR-11) | uknisi1608 |
| Lens + GR IIIx adapter (PR-12) | uknisi1609 |
| Lens + GR IV adapter (PR-8) | uknisi1610 |
Shipping and returns
Tracked 48 free over £60, Tracked 24 free over £300. Photo proof of delivery, and you can redirect the parcel to a safe place, a neighbour or a pickup point. Shipped from our UK warehouse.