Sony SLT-A57K User Manual
Page 3
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70-300mm F4.5-5.6 G SSM (SAL70300G), 1/640 sec., F5.6, ISO 1600
The secret to Sony performance
Translucent Mirror Technology simultaneously
directs light to the image sensor and AF sensor
on a full-time basis to realize full-time live view
shooting and accelerated full-time continuous
phase-detection autofocusing even during HD
movie shooting. It’s the cornerstone of Sony
interchangeable-lens camera technology.
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