Dedicated to the Ricoh GR III digital camera, the GA-1 Lens Adapter is required for attaching the GW-4 Wide Conversion Lens to the camera's built-in lens.
UPC: 027075300309
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Key Features
- Attaches GW-4 Lens to GR III Camera
Dedicated to the Ricoh GR III digital camera, the GA-1 Lens Adapter is required for attaching the GW-4 Wide Conversion Lens to the camera's built-in lens.
Ricoh GA-1 Overview
Ricoh GA-1 Reviews
Great
By Ryan
Rated 5 out of 5
Date: 2026-04-17
A bit expensive for what it is, but it's everything it needs to be. It's easy to install, locks in place so it won't ever fall off unintentionally, and matches the look of the camera. I just got back from a 2-week trip using this the whole time to mount a polarizer filter, and I have no complaints.
Got it to use for a little more lens protection.
By Steven
Rated 5 out of 5
Date: 2022-06-23
I purchased this accessory along with a 49mm UV filter just to worry a bit less about getting dust in there.
See any errors on this page?
Can the GA-1 take the GT-2 Tele Conversion Lens? ...
Can the GA-1 take the GT-2 Tele Conversion Lens? I was wondering if that will allow the GT-2 to be used on GR III. Thanks.
According to Ricoh, the GT-2 Telephoto Conversion Lens is only compatible with the GA-2 (which is only compatible with the GRIIIx).
Date published: 2022-06-07
Does this also work with the GRIIIx for filter ...
Does this also work with the GRIIIx for filter mounting?
No, the Ricoh GA-1 Lens Adapter does not fit onto the GRIIIX. The GA-2 does. The link for that is, https://bhpho.to/3u7MxLd .
Date published: 2022-11-29
Filter thread size?
Filter thread size?
The Ricoh GA-1 Lens Adapter does not have filter threads. It is specifically made for adapting the Ricoh GW-4 Wide Conversion Lens.
Date published: 2024-01-05
Can this be used with filters instead of the ...
Can this be used with filters instead of the lens? Or will the camera think a conversion lens is attached and alter the image?
It can be used alone with filters, that's how I used it for a few months at first. 49mm thread
Date published: 2022-04-18
What is the purpose of the electronic contacts on ...
What is the purpose of the electronic contacts on this adapter?
The purpose of the electronic contacts is to detect the GW-4 Wide Conversion Lens attached to the adapter.
Date published: 2022-05-17