Sony Alpha 57

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Sony α 57
Sony SLT-A57 with SAL35F18.JPG
Overview
TypeDigital single-lens translucent camera
Lens
Lens interchangeable, Sony A-mount
Sensor/medium
Sensor 23.5 mm × 15.6 mm, 16.1 effective megapixels CMOS
Film speed Auto: 100-3200; Selectable: 100-16000; Multi Frame NR (up to ISO 25600)
Storage media Memory Stick PRO Duo™, Memory Stick PRO-HG Duo™, SD memory card, SDHC memory card, SDXC memory card
Exposure/metering
Exposure metering Advanced 1200-zone evaluative metering
Metering modes Multi-segment, Center-weighted, Spot
Flash
Flash Built-in flash, Range: approx. 3' - 15' (1 m - 5 m); Auto, Fill-flash, Slow Sync., Rear Sync., Hi-speed sync., Red-eye reduction (on/off selectable for Autoflash and fill-flash mode), Wireless;
Shutter
Shutter electronically controlled, vertical-traverse, focal-plane Shutter
Shutter speed range30–1/4000 sec, with Bulb, 1/160 sec X-sync
Continuous shooting up to 12 Frames Per Second
Viewfinder
Viewfinder 0.46" SVGA Xtra Fine EVF (2174 dpi) (Electronic viewfinder) (1,440,000 pixels), Diopter Adjustment: -4.0 to +3.0 m-1, Field of View: 100%, 1.04x magnification
Image processing
White balance Auto WB, Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm white/Cool white/Day white/Daylight), Flash, C. Temp 2500 to 9900 K, C Filter G7 to M7, 15-step, Custom, AWB micro adjustment
General
LCD screen921k pixel 3-inch TFT LCD
BatteryInfoLITHIUM® NP-FM500H (7.2 V)
Weight Approx. 618 g (with battery & media);
Made in Thailand

The Sony Alpha 57 (model name SLT-A57) is a Digital single-lens reflex camera that replaced the A55 in 2012. The camera features an electronic viewfinder and a translucent mirror. The main advantage of a translucent mirror is that it needn't flip up out of the way when taking a picture in order to expose the sensor, but the camera can focus and capture images simultaneously. The camera's 15-point autofocus system can be set to single, continuous or automatic and is arranged towards the centre. The 12-fps burst mode is available only in "speed priority" mode but can reach up to 5.5 fps burst rate in combination with any other settings.

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