Sony A77

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The Sony Alpha A77 is a digital single-lens translucent (SLT) camera that incorporates a 24.3-megapixel APS-C CMOS sensor, delivering high-resolution still images with exceptional detail. It features a fixed translucent mirror that allows faster continuous shooting speeds up to 12 frames per second without viewfinder blackout. The camera employs an advanced 19-point phase-detection autofocus system for precise and quick focusing performance, suitable for various shooting scenarios. Video capture is supported at Full HD 1080p resolution with multiple frame rate options, enhanced by stereo audio recording capabilities. The camera includes a 3-inch tiltable LCD screen with 921k dots for flexible framing and playback, as well as an electronic viewfinder with 2.4 million dots providing a bright and clear viewing experience. Connectivity options include USB, HDMI output, and support for various memory card formats ensuring broad compatibility and ease of data transfer.

The SLT technology enables continuous autofocus during video and high-speed shooting without mechanical mirror movement, enhancing shooting responsiveness. High-resolution 24.3MP sensor supports detailed image capture suitable for large prints and cropping. The hybrid autofocus system combines phase and contrast detection for reliable subject tracking and focus accuracy. Fast continuous shooting speed of 12 fps benefits sports and wildlife photography. Full HD video recording with various frame rates provides versatility for filmmakers and enthusiasts. The robust magnesium alloy body construction provides durability and weather resistance for professional use.

The fixed translucent mirror reduces light transmission to the sensor by approximately one-third, potentially impacting low-light performance and ISO sensitivity. Battery life is relatively limited compared to DSLR counterparts, particularly in continuous shooting or video mode. The complexity of the menus and settings may present a learning curve for beginners. Although the electronic viewfinder offers high resolution, it may exhibit slight lag compared to traditional optical viewfinders. The camera weight and size are larger than typical mirrorless models, affecting portability. Limited native lens lineup compared to other brands may require additional adapters for some lens options.

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