You can attach the external viewfinder in the hotshoe that is located above the lens, which will not show vignetting caused by the lens tube. It has the two frames that are equivalent to 28 mm and 21 mm (on 35 mm filmcameras). The 21 mm frame will be useful when the wide conversion lens is attached. Rate of view is approx. 90%.
The Ricoh GA-2 Lens Adapter. GR IIIx dedicated adapter (does not support RICOH GR III) Can be used using filter (Filter diameter: 49mm) Automatically detects GT-2, and informs GR IIIx to change the setting to crop and optimise the share reduction.
You can attach the external viewfinder in the hotshoe that is located above the lens, which will not show vignetting caused by the lens tube. It has the two frames that are equivalent to 28 mm and 21 mm (on 35 mm filmcameras). The 21 mm frame will be useful when the wide conversion lens is attached. Rate of view is approx. 90%.