The GR lens achieves sharp imaging with high resolution and high contrast
The GR lens has been imbued with our unique optical technology that aims to always provide high image quality. The GR III uses a slim optical system consisting of 6 elements 4 groups with a focal length of 18.3 mm (approx. 28 mm in 35 mm equivalent focal length) and aperture of F2.8. The GR IIIx uses a newly developed optical system consisting of 7 elements 5 groups with a new focal length of 26.1 mm (approx. 40 mm in 35 mm equivalent focal length). High-refractive index low-dispersion glass lenses and aspherical high-precision molded glass lenses are optimally placed in the lens construction according to each model’s optical system to suppress optical distortion and chromatic aberration to the absolute limit, delivering a high level of sharpness. This results in images that are sharp and clear across the entire frame even from the full aperture setting.
*Image (GR III)
GR III: 18.3 mm (approx. 28 mm in 35 mm equivalent focal length),
F2.8, 6 elements 4 groups
GR IIIx: 26.1 mm (approx. 40 mm in 35 mm equivalent focal length),
F2.8, 7 elements 5 groups