Sony A57 vs Canon 600D vs Nikon D5100 Specification comparison review, the Sony A57 is recently announced and Nikon D5100 and Canon 600D / T3i update (650D & D5200) may arrive soon, but before that let’s have a look to the specification comparison review all these three entry level DSLRs / SLT.
Sensor and Megapixels: The new Sony A57 uses new 16.1 megapixel CMOS sensor (same as Sony NEX-5N), you get standard ISO range of 100-16000 and expandable up to 25600.
Nikon uses a 16.2-megapixel Nikon APS-C sensor and Canon uses 18.7 megapixels APS-C sensor, All these three sensor are based on APS-C format but the size for Nikon and Sony is bit bigger compared to canon.
AF system : The Canon uses 9 point AF system but AF is not available in video mode, both Sony and Nikon features advance AF system and AF during video mode.
The A57 model shares the more expansive A65 15-point AF system with three cross sensors delivering fast, accurate TTL phase detection autofocus. Newly enhanced Object Tracking AF keeps faces or other selected objects in sharp focus .
Shooting speed: Canon 600D features DIGIC 4 image processor and have Continuous shooting speed of 3.7 fps, Nikon D5100 comes with Expeed 2 image processor and have shooting Continuous shooting speed of 4 fps
Sony A57 comes with newly developed advance BIONZ image processor and can shoot 8 megapixel still at 12 fps with continuous auto focus and auto exposure with fixed aperture.
Video: Canon offers Full HD at three selectable frame rates, HD at 60 and 50 fps, but no AF available during Video mode,
Nikon D5100 offers AF during video mode and three selectable frame rate at Full HD and 30, 25, 24 fps at HD video recording, no 60 fps option available at Full HD and HD video mode.
The Sony A57 have AF during video recording, manual controls in video mode and uses the latest AVCHD 2.0 codec for video recording, Full HD resolution movies can be captured with 60p and 24p frame rate.
Battery life etc, Nikon D5100 have light-weight body with longer battery life.
The Price
Nikon D5100 is most affordable and available at $699 at Amazon,
Canon 600D / T3i available at $749 at Amazon and
Sony A57 available at $799 with Amazon.
High ISO Image Comparison below. Image Credit: imaging-resource.com
Image comparison of Sony A57 vs Canon 600D vs Nikon D5100 @ ISO 1600
Image comparison of Sony A57 vs Canon 600D vs Nikon D5100 @ ISO 3200
Image comparison of Sony A57 vs Canon 600D vs Nikon D5100 @ ISO 6400
Image comparison of Sony A57 vs Canon 600D vs Nikon D5100 @ ISO 12800
Conclusion: The Noise performance is almost same, Canon 600D gives your bit more resolution and Nikon D5100 and Sony A57 features better AF and Video mode.
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