Canon 1DX Review ★★★★★ 14 FPS 61 Focus Pts. 18MP

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• published: 25 Oct 2011
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Click here http://www.youtube.com/TibetArchive The Canon EOS-1D X is the latest in the company's professional range of DSLRs. Its job is to replace both the sports-orientated 1D series and the high-resolution, studio-focused 1DS range of cameras. As is usual for upgrades in this class of camera, the changes are incremental and subtle but aim to raise the bar of what is possible. The biggest specification change to the 1D X is its new sensor - an 18MP full-frame CMOS chip capable of shooting at 12 frames per second (RAW). This represents a big change over the 1D Mk IV (it represents a move away from the smaller APS-H format that Canon has previously used in its sports cameras), and a decrease in pixel count compared to the 1DS series. However, as Rick Berk, Technical Specialist in Canon USA's Pro Engineering and Solutions Division says: 'there's more to image quality than just resolution.' The move from APS-H up to full-frame is enabled by a sensor with faster data readout explains Chuck Westfall, Technical Advisor in Canon USA's Pro Engineering and Solutions Division: 'The new sensor has 16-channel, dual line readout, compared to 8-channel, single line designs in the previous generation of chips.' This lets the company offer a large sensor (and the low-light capability that brings) for 1DS users, with the fast capture speeds that current 1D Mk IV users need. 'It's clear the time has come for the 1DX to replace the whole 1D series,' says Westfall. Under the skin, the big change is the more sophisticated metering sensor. A move from the 1D Mk IV's sensor to a new 100,000 pixel unit affords the camera a much better understanding of the scene and this information is fed into the camera's autofocus system to improve the quality of its AF tracking. This isn't a new idea (Nikon's sports cameras have done something similar for several generations), but it's a sensible way of improving what's already an impressive system. http://www.dpreview.com/articles/5149972341/canon-eos-1d-x-overview Processing power As you'd expect, the camera's processing has received a considerable refresh, Westfall explains: 'You've got dual Digic 5+ processors, which our engineers are telling us are 17x faster than the Digic 4s used in the existing models.' In addition, the metering sensor, given its added complexity and the need to interpret its output to feed into the AF system, gets its own Digic 4 processor. This processing power allows the camera to conduct a wider range of lens corrections. In addition to the vignetting correction that could be conducted by the 1D Mark IV, lens profiles can be uploaded using EOS utility and the camera will correct for geometric distortion and chromatic aberration (both lateral and axial) in real-time. These corrections are all optional and can be engaged separately. Another benefit of more processing power, combined with an improved sensor is an expansion of ISO range, says Westfall: 'The ISO range on this camera, just the standard range, goes from 12,800 on the 1D Mark IV and 1600 on the 1DS Mark III, up to 51,200. And this can be expanded up to 204,800 - that's going to be an enabler of all sorts of new possibilities for a lot of people.' The final processing option is the ability to shoot multiple exposure images. Four combination methods are available, which can be used to create composite images either from consecutive shots or from an existing Raw file and an additional exposure.