The 650D’s image processor has also been upgraded to the DIGIC 5 version, and while this isn’t quite as fast as the DIGIC 5 processor used in Canon’s flagship EOS 1Dx and 5D Mark III models, it does offer a six-fold increase in processing speeds over the old DIGIC 4. However, you’ll still have to rely on the standard contrast-detection AF method when the subject you’re shooting lies outside of the sensor’s central area. Canon calls this ‘Hybrid CMOS AF’ and claims that it improves focus performance when the camera is being used in live view mode and when shooting video. While effective resolution remains pegged at 18MP, the 650D’s revised sensor now employs some of the pixels in the central part of the chip for phase detection AF. Perhaps the most significant of these is the APS-C CMOS sensor at its heart. In addition to the new touchscreen the 650D also benefits from a number of other upgrades and improvements to its core specifications. While touchscreens are widely used on more expensive compacts and compact system cameras, the 650D’s claim to fame is that it’s the first DSLR to employ one. The big talking point though is the addition of a new touchscreen monitor. Upgrades over the older model are largely incremental, although taken collectively they do add up to a more flexible camera. For the time being it will sit alongside the 18-month-old 600D, though it’s likely it will eventually replace it completely. The Canon 650D is the latest addition to Canon’s mid-range DSLR lineup.
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