Sony A57 is a successor of A55, It comes with many new features and improved body grip and design, read the comparison review of Sony A57 vs. Sony A55 for more details.
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.
The new AF system : 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: Sony A57 canon shoot 8 megapixel still at 12 fps with continuous auto focus and auto exposure with fixed aperture, at 8fps you get full 16.1 megapixels resolution.
Video: The Sony A57 comes with full control over P/A/S/M shooting modes and uses the latest AVCHD 2.0 codec for video recording, Full HD resolution movies can be captured with 60p and 24p frame rate.
Improved body grip and design similar to more costly Sony A65.
New features:
New Portrait Framing technology is introduced in Sony A57, Using face detection and the compositional ‘rule of thirds,’ the camera identifies a subject’s position, trimming the scene to create tightly framed, professional-looking pictures in portrait or landscape orientation while maintaining a copy of the original image.
2x Clear Image digital zoom technology doubles the effective magnification of your lens. The camera uses Sony’s “By Pixel Super Resolution Technology” to ensure that cropped and zoomed images retain full pixel resolution.
Conclusion: Buy Sony A57, Sony A57 is a clear balance of technology and price.
Sony A57 have no in camera GPS but comes at same price as A55 with new image sensor, fast image processor, and you get full control over P/A/S/M modes while video shooting, the new camera also features New Portrait Framing technology and 2x Clear Image digital zoom.
Pre-order details
Amazon
Pre-order Sony A57 from Amazon
B&H
