The GV-1 is the optical viewfinder specially for GR, GR DIGITAL III / GR DIGITAL II / GR DIGITAL cameras. 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 & 21 mm (on 3.5cm filmcameras). The 21 mm frame will be useful when the wide conversion lens is attached. Rate of view is approx. 90%.
Includes:: case.