Canon EOS 1D Mark III User Guide - Page 9

III. IMAGE QUALITY IMPROVEMENTS Image quality improvements over the EOS-1D Mark II N are as follows: • Higher resolution with 10.10 megapixels versus 8.2 • Improved gradation with 14-bit A/D conversion and DIGIC III • ISO 3200 now within the standard ISO setting range, thanks to an improved sensor signal-to-noise ratio and DIGIC III • Noise reduction provided for high ISO speeds (C. Fn II -2-1) • Noise prone to occur at high ISO speeds is reduced • At low ISO speeds, noise in the shadow areas is further reduced • Priority for highlight detail can be set (C. Fn II -3-1) • Image detail from the grays to highlights is improved and loss of highlight detail is reduced New 10.1 Megapixel Sensor The EOS-1D Mark III's new, Canon-designed and manufactured, APS-H-size, CMOS single-plate sensor advances the state of the art in professional 18.7mm DSLR sensor design. APS-H is the largest sensor that can be imaged in one pass using cutting edge semiconductor manufacturing technology. The imaging area of the new CMOS sensor measures 28.1 x 18.7mm, appreciably larger than APS-C and about the same size as the sensors in the 28.1mm (Actual Size) EOS-1D Mark II and Mark II N. The lens magnification factor is 1.3x. Shadow noise at all comparable ISO speed settings is 50% less than with the EOS-1D Mark II N. The sensor features high-speed signal reading (approx. 10 fps), low power consumption, and Live View shooting. III. IMAGE QUALITY IMPROVEMENTS 9