LCD and Viewfinder
Sony A57 has a Fully Articulated 3" LCD screen with a resolution of 921k dots. Both the screen size and the screen resolution is up to the standards of this class.
For those of you who loves shooting self portraits or group photos, Sony A57 will make your life easier with its Selfie friendly
A57 has a built-in Electronic viewfinder. The viewfinder has a resolution of 1,440kdots and coverage of 100%. 100% coverage ensures that what you see in the viewfinder while shooting matches exactly what you will get later in your image, helping accurate framing your shots and minimizes the need for cropping images later.
Max Shutter speed
Sony A57 can shoot continuously at max speed of 12 fps
and has max shutter speed of 1/4000 sec
A57 has a built-in flash, and it also has a flash shoe to mount your external flashes too.
Sony A57 features a Phase Detection autofocusing system. The AF system has 15 focus points and 3 of these sensors are of Cross-type. Cross-type sensors locks focus faster and more accurate compared to single type sensors. Sony A57 also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.
With Sony A57, you can record your videos at a highest resolution of 1920 x 1080 at 60p,24p fps and save in MPEG-4, AVCHD and H.264 formats. Full HD resolution of Sony A57 will be adequate in most of the situations. But if you are after the highest resolution videos available, see our list of Top Cameras with 4K (Ultra-HD) Video
A57 has a built-in Stereo microphone and a Mono speaker. Sony A57 also has a port for an external microphone so you can record high quality sound with the help of an external microphone.
Connectivity and Storage
You can connect A57 to compatible devices via its HDMI port or USB 2.0 (480 Mbit/sec) port.
Sony A57 is powered by battery which provides a shooting life of 550 according to CIPA standards.
Considering that the average battery life of DSLR type cameras is 910 shots, Sony A57 has a short battery life for its class so we strongly recommend A57 owners to buy some extra batteries.
Battery Life Comparison in Entry-Level DSLR Cameras
Pentax K-x with its 1900shots is the model with longest battery life among Entry-Level DSLR cameras. Check the comparison of Sony A57 vs Pentax K-x or take a look at Longest Battery Life DSLR cameras list.
Sony A57 Features Compared to Main Competitors