Sony A77

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The Sony Alpha SLT-A77 is a digital single-lens translucent (SLT) camera featuring a 24.3-megapixel APS-C CMOS sensor designed to deliver high-resolution imaging and excellent low-light performance. It uses a fixed translucent mirror system allowing for continuous phase-detection autofocus even during live view and video recording. The camera supports high-speed continuous shooting at up to 12 frames per second, leveraging its dual BIONZ image processors for rapid data processing. It offers full HD 1080p video recording with customizable frame rates and various file formats. The electronic viewfinder (EVF) provides a high-resolution 2.4 million dot display ensuring precise framing and accurate exposure preview. Connectivity options include HDMI output, USB 2.0, and support for external flashes via the hot shoe.

The body is constructed with magnesium alloy for durability yet lightweight handling, paired with a 3.0-inch tiltable LCD that aids in shooting from various angles. The built-in image stabilization system compensates for camera shake with lens shift technology, enhancing clarity in handheld shots. Its autofocus system features 19-point phase detection plus 11 assist points for fast and precise focusing across the frame. A robust battery allows approximately 600 shots per charge, suitable for extensive shooting sessions. This camera model supports multiple lens mounts and accessories compatible with Sony Alpha series.

The SLT-A77 offers one of the fastest continuous shooting rates in its class at 12 fps, ideal for action and sports photography. Its advanced translucent mirror technology enables full-time phase detection autofocus during video and live view modes. The high-resolution EVF provides real-time exposure and focus previews with minimal lag. The 24.3 MP sensor delivers detailed images with excellent dynamic range and noise control. Its rugged, magnesium alloy body ensures durability for professional use. Multiple customizable function buttons and menu options enhance user control and workflow efficiency.

Despite its advanced features, the fixed translucent mirror results in a slight reduction in light transmission compared to traditional DSLRs, potentially affecting low-light performance minimally. The electronic viewfinder, while high-res, may introduce some lag and is less natural compared to optical viewfinders. Battery life, though decent, can deplete faster when using continuous live view and video functions. The camera bulk is larger and heavier than some mirrorless competitors, reducing portability. Lens availability is limited to Sony Alpha mount lenses, which may be restrictive for some users. Video recording lacks 4K capability, limiting future-proofing in video performance.

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