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Sony has announced the SLT-A57, a replacement for the original A55 fixed-mirror, electronic viewfinder DSLR. The A57 still features a 16MP sensor and LCD viewfinder but incorporates them into essentially the same body as the more expensive A65. Use of the latest Bionz processor means the A57 offers a wider-than-ever selection of photographic features and image processing modes. Updated with more information about the optional HVL-LE1 video-lighting LED panel.