Sony’s Alpha A55 camera ($850 with lens) and A33 ($750 with lens — slightly lower burst-mode speed, 14 megapixels instead of 16, and no GPS chip) are small, light, well-designed S.L.R.-style cameras. But there’s something unusual going on inside.
Sony
The Sony Alpha A55
A new camera from Sony adopts a new spin on a decades-old photographic idea.
