The below video is a review of the new Sony A57 DSLR Camera, which is newer and bigger than the A55 — an answer to the complaints that they received about the A55, which didn’t have as big of a grip.
The A57 has an M battery, so you get more stamina. There’s a bigger screen, more space, easier to access and all that. They have a good image sensor, still 16 mp but it’s paired with the latest ion processor to get high ISO for super lowlights and at parties you won’t need a flash.
A good 12 frames per seconds, with 10 frames per second being optimal for your image. Sort of telephoto if you’re getting something moving fast like sports photography.