The new Canon EOS-1D X Mark III sensor achieves an overall DXOMark score of 91 that places it in the 28th spot overall in our database of full-frame and MF sensors, and in joint first place for full-frame Canon cameras alongside the Canon EOS 5D Mark IV. The EOS-1D X Mark III sensor has a relatively strong response in our Portrait (Color Depth The 1D Mark 4 has an intermediate size sensor, bigger than that of the 7D Mark 2 but smaller than full-frame. At a pixel level, which means viewing an image at a magnification of 1:1, or 100 percent, 1D Mark 4 images have a little more local contrast. The camera features highly improved basic functionality made possible by revamped core components, including a newly developed 20.1 million effective pixel 1 full-frame CMOS sensor, a new DIGIC X image processor and a dedicated AF sensor. Thanks to these improvements, the EOS-1DX Mark III is capable of a high maximum continuous shooting speed The 5D Mark IV offers the same 61-point autofocus system as Canon’s former flagship model, the EOS-1D X Mark II. When using a single autofocus point, the autofocus performs well. Unfortunately, the same cannot be said about the Mark IV’s new autofocus tracking feature, iTR AF. p.1 #1 · p.1 #1 · 1D Mark IV - Autofocus Problems with Birds in Flight. I have some questions about AutoFocus behavior and Custom Functions in the Canon 1D Mark IV. I moved to it from the Mark II a couple of years ago, and haven't really seen the improvement in AutoFocus performance that I expected. This is primarily for birds in flight. Canon is at the leading edge of photographic technology. But it has historically focused on full-frame DSLRs like the 1DX Mark III. Although Canon does have a range of APS-C cameras, most of its lenses are designed for full-frame models. Given the niche’s recent popularity, Canon has switched its attention to the mirrorless camera market. Its Add advanced Live View shooting, Full HD movie recording with selectable frame rates and manual exposure control plus a host of new features that enhance every facet of the shooting process. The EOS-1D Mark IV is the choice of professionals looking for the ultimate in SLR performance. Canon EOS 1D Mark IV key specifications โดย Canon 1D Mark IV เตรียมวางขายในช่วงเดือนธันวาคมนี้ในราคา $4999 (ประมาณ 175,000 บาท) ซึ่งถูกกว่า Nikon D3s เล็กน้อย. ที่มา - Engadget QFpN.