This is the actual size of the 5D Mark IV sensor: 36 x 24 mm. The sensor has a surface area of 864 mm². There are approx. 30,100,000 photosites (pixels) on this area. Pixel pitch, which is a measure of the distance between pixels, is 5.36 µm. Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next. The Canon EOS 5D Mark IV is the latest addition to the legendary EOS 5D family. Designed for photographers and videographers alike the Canon EOS 5D Mark IV features a brand new 30.4 megapixel full-frame sensor paired with a DIGIC 6+ processor to provide internal DCI 4K video recording at up to 30 fps, a wide ISO sensit 30.4MP full-frame CMOS sensor with 61-point reticular AF. The EOS 5D Mark IV is equipped with a full-frame CMOS sensor boasting of a 30.4-megapixel image resolution, ensuring detailed depictions and beautiful tones that will satisfy pro photographers, particularly in landscape and wedding photography. Of all 61-points, all are f/8-sensitive The Canon 5D Mark II is offered with an EF 24-105mm f/4L IS USM kit lens, with an optical zoom range of ~4.4x, and a focal length that goes much wider than most kit lenses. Note: You are comparing sensors of very different generations. There is a gap of 7 years between Canon 5DS R (2015) and Canon 5D Mark II (2008).Seven years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones. Though Canon makes many excellent digital SLR cameras for pros and consumers, none has reached the superstar status of the Canon 5D series. The original 5D's 12.8-megapixel full-frame sensor The Canon EOS 7D Mark II outperforms the Canon EOS 5D Mark II in optics, with a score of 61/100 compared to the 5D Mark II’s 59/100. Both cameras share certain specifications, such as 20.2 and 21 megapixels, a CMOS sensor, a Canon EF lens mount, and no image stabilization. But Canon's EOS 5D changes that, combining a 12.8-megapixel, 23.9mm-by-35.8mm CMOS sensor with a competent midsize SLR body for less than half the price of the only full-frame alternative EOS-5D Mark IV (** see note) CR2: Yes: 9.7: 1.0: Limitations with Canon Dual Pixel raw files in Camera Raw OM-D E-M10 Mark II: ORF: Yes: 9.2: 1.0: 2015.2: 6.2 The EOS 5D Mark II features a huge, full-frame sensor. A 21.1-megapixel CMOS sensor delivers images of up to 5616 x 3744 pixels. And since it is full-frame, all lenses will deliver the angle of view they would on a 35mm camera without a conversion factor. Thanks to improved noise reduction technologies, images shot even at highest sensitivity ZjLMs6.