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Print ArticleSAN DIEGO, Aug. 24 /PRNewswire/ -- Sony today introduced two new alpha cameras (models SLT-A55V and SLT-A33) that adopt Sony's newly-developed Translucent Mirror Technology(TM), which achieves the highest-level of auto focus speed for both still image and movie shooting.
Translucent Mirror Technology(TM) provides performance previously unattainable with traditional DSLR technology. Using the new technology, the a55 and a33 models can continuously and quickly focus (with TTL phase-detection) while shooting stills and recording video--even in full HD, allowing desired moments to be captured in tack sharp focus, high-definition video. They can shoot continuously at up to 10 frames per second on the a55 (and up to seven on the a33), achieving shooting speeds that are the fastest in the industry for an APS-C size sensor-equipped interchangeable lens cameras under $1000.
"This is the most innovative Interchangeable Lens Digital Camera that Sony has ever created," said Kristen Elder, director of the digital imaging business group. "Our Translucent Mirror Technology is one of the most significant SLR structural changes in more than a decade."
By displaying the images received by the Exmor(TM) APS HD CMOS Sensor, picture quality of the camera's live view image has enhanced drastically. Coupled with the quick and accurate phase detect AF and 100 percent coverage Tru-Finder(TM) electronic viewfinder, the Quick AF Live View feature has been further advanced.
Translucent Mirror Technology
Both cameras are equipped with a translucent mirror, which enables light passing through the lens to be simultaneously received by the image sensor and the auto focus sensor, allowing continuous shooting and continuous focusing at speeds never before possible. The a55 offers the world's fastest 10 fps high-speed burst shooting with continuous AF (TTL phase-detection) in an interchangeable lens digital camera with APS-C sensor.
Because of its structure, the Translucent Mirror Technology(TM) does away with the motion of raising and lowering the mirror. The absence of the moving mirror mechanism contributes to making the whole body size significantly compact compared to traditional DSLR cameras.
By eliminating the need to raise and lower the mirror between shots, the technology makes it possible to achieve focusing while images are captured. Existing systems can only focus in the interval between image capture, limiting the ability to track fast moving subjects. The cameras also have continuous Advance Priority AE Mode and will automatically adjust for the best exposure to help you get the most professional looking results.
High-Speed Capture with Auto Focus
Additionally, a newly developed 15-point AF system assures ultra-fast, high precision focusing. The high-speed shooting with continuous Phase Detect AF tracks rapidly moving subjects accurately. You can capture the decisive moments that you might have otherwise missed.
Creative Video Capture
The continuous phase detect AF also works in movie shooting for the first time in the world. The Translucent Mirror Technology(TM) also allows the a55 and a33 to be the first cameras to ever maintain continuous phase detection AF while recording Full HD AVCHD video. With fast, precise phase detection AF continually tracking subject movement, even fast action and subjects that move quickly towards or away from the camera are easy to keep in focus.
With a large 16.2 megapixel (for the a55) and 14.2 megapixel (for the a33) Exmor(TM) APS HD CMOS sensor, background defocusing effects can be easily captured. The APS-C sensor size is nearly 20 times larger than a traditional compact camcorders' 1/2.88 type image sensor, providing more creative control.
Compatible with all A-mount lenses, video and photography enthusiasts alike can choose from macro to telephoto lenses to achieve their desired artistic effect.
Full-time Live View
Full-time Live View offers unprecedented freestyle shooting versatility with fast, precise AF using either the viewfinder or LCD monitor. The a55 and a33 have a fully articulated 3-inch 921,600 Xtra Fine LCD with TruBlack(TM) technology with 100 percent coverage.
The Tru-Finder eye-level viewfinder provides an unprecedented combination of 100 percent coverage and 1.1x magnification for easy and natural framing. By combining Translucent Mirror and Tru-Finder technologies, a33 and a55 are the first interchangeable lens digital cameras to offer movie recording with the familiar eye-level shooting style - a significant advantage in fast moving and extreme lighting conditions (bright sunlight and low-light situations).
The variable angle tilt LCD is adjustable to accommodate shooting from low or high angles. The electronic view finder has a high-resolution effective 1.15 million dots conversion Xtra Fine LCD(TM) display, is bright and easy to see even in low light, has a selectable shooting parameter display and shows the effects of exposure and white balance adjustments.
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