Sony’s first-ever digital cameras to employ Translucent Mirror Technology showcase an innovative optical system that opens up dramatic new shooting possibilities. In contrast with conventional DSLR cameras, Translucent Mirror Technology uses a fixed, translucent mirror that ‘splits’ the optical pathway between the main image sensor and a separate phase-detection autofocus sensor. High-resolution live image preview with rapid, accurate phase detection autofocus is thus available at all times – either via the angle-adjustable 7.5cm (3”) LCD or precision Tru-Finder (electronic viewfinder). This also ensures that even moving objects stay in sharp focus at all times, whether you’re shooting Full HD video or stills.
Translucent Mirror Technology overcomes other traditional limitations of DSLR models, with its simplified mechanical design shrinking camera size and complexity. This makes the α55 and α33 a compelling choice for casual photographers who want to capture spontaneous family moments and travel scenes with less to carry.
Mirror Technology allows high-speed shooting with the α55 at up to 10fps (α33: 7fps) in Continuous Priority AE mode. This represents the world’s fastest burst continuous AF shooting performance of any interchangeable lens camera with an APS-C size sensor.
A newly developed 15-point phase-detection autofocus system assures rapid, accurate AF tracking, keeping even moving subjects in sharp focus during continuous shooting. This enables the α55 and α33 to capture split-second action or fleeting nuances of expression with portrait subjects. Sensor inside both cameras lets photographers capture stunning, cinematic HD video footage with beautiful background defocus (bokeh) effects.
Theα55 and α33 also mark the debut of Quick AF Full HD movie shooting. Translucent Mirror Technology enables AVCHD 1080i video shooting with smooth, precise phase detection AF tracking of moving subjects. Real-time video image preview is now possible via the viewfinder – in contrast with DSLR cameras where the raised mirror prevents light from reaching the optical viewfinder during video shooting.
Theα55 and α33 enable exciting new possibilities for framing and viewing highest-quality video and still images. Already prized by step-up DSLR users and enthusiasts alike, Sony’s Quick AF Live View system is now more effective than ever. High-resolution live image preview is teamed with uncompromised phase detection AF performance – even with rapidly-moving subjects.
Tilting and swivelling freely (to maximum 270 degrees) for comfortable framing at any shooting angle, the bright 7.5 cm (3.0") (16:9) Xtra Fine LCD offers superb detail and contrast.
There’s also a precision electronic viewfinder with 1.15 million dot resolution that delivers a clear, bright image with 100% frame coverage. Adjustments to exposure, depth of field and colour can be previewed instantly, either in the viewfinder or on the LCD. Effortless composition is aided further by switchable grid line in the finder and LCD screen, plus a new digital levelling gauge.
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