Large CMOS image sensor captures the finest details The GR II features a large-imaging area, wide dynamic range APS-C size CMOS image sensor with approx. 16.2 effective megapixels. The superior high-sensitivity characteristics and low-noise performance allow regular shooting at ISO3200 (which can be boosted to a maximum of ISO25600). By eliminating the anti-aliasing filter to enhance resolution, it maximizes the resolving potential of the lens to deliver sharp, high-quality images right to the edges. By mutually optimizing this large image sensor and the GR lens, the camera achieves a slim and compact body that stands true to the GR heritage.