Sixteen point six megapixels of effective resolution is really nice . Of course, the Canon EOS-1Ds Mark II costs about the same per megapixel as the Canon EOS-1D Mark II - 2x as much money . After spending a sum of money approaching 5 figures and waiting 3 months to get the 1Ds II, I had high expectations. And I am not disappointed. Basic Specifications ; Full model name: Canon EOS-1D X: Resolution: 18.10 Megapixels: Sensor size: 35mm (36.0mm x 24.0mm) with the 1D Mark III and Mark IV attaining speeds of up to 10 frames 1.81 lb. The Pentax K-3 Mark III earns a solid score of 83, showcasing its impressive specifications. Announced on March 30, 2021, and released the same year, this DSLR camera has dimensions of 135 x 104 x 74mm and a weight of 820g (1.81lbs). The K-3 Mark III is a solid DSLR and a competitive option in today’s market. Canon 1D Mark IV Review - 1D Mark IV Video. The frame rates of 30/25 and 60/50 vary depending on what video system has been selected in the camera, either NTSC (60 or 30 frames per second) or PAL The Canon EOS-1D X Mark III is capable of full-width internal 12-bit 4K RAW recording at 5472 x 2886 (oversampled 5.5K) up to 60fps – though AF/E and tracking are only supported up to 30fps. In addition to a selection of 4K crops, it also supports 1080p video at up to 120fps with AF/E and tracking. LHiSV6k.