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Pentamirror tilt mechanism for fast TTL phase-detection autofocusing
In a significant breakthrough in digital SLR camera design, a unique Sony-developed pentamirror tilt mechanism enables true TTL (Through-The-Lens) phase-detection autofocusing during live view operation. So whether you frame your subject in the optical viewfinder or the LCD monitor, you enjoy the benefits of a fast, accurate TTL center-cross 9-point autofocus system with continuous autofocusing to help you capture fast-moving subjects.
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With Quick AF Live View
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With conventional live view
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Using Live View mode
When you switch to live view operation, an innovative new pentamirror tilt mechanism directs the subject image to a dedicated live view sensor positioned over the viewfinder eyepiece.
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Using the viewfinder
When you use the viewfinder, you can also take advantage of Sony Eye-Start™ AF, which automatically focuses the camera as soon as you put your eye to the viewfinder.
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(1) Tilting mirror (2) Image sensor for live view
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(1) Viewfinder
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Variable-angle LCD for freestyle shooting ease
The variable-angle Clear Photo LCD monitor can be tilted upward by up to 130° or downward by up to 40° for easy high- and low-position shooting.
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(1) 40° (2) 130°
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Unlike previous systems that required a tradeoff in autofocusing performance, there's no compromise with the α300's Quick AF Live View. Instead, you get full SLR functionality and image quality, plus the ability to shoot easily and comfortably from angles and positions that were previously impossible. So you can take advantage of more spur-of-the-moment photo opportunities, and capture more of the magic moments that SLR photography is all about.
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DT18-70mm F3.5-5.6 (SAL1870), P mode (1/100 sec., F8), ISO 100, Auto white balance
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DT 55-200mm F4-5.6 (SAL55200), Sports action mode (1/500 sec., F5.6), ISO 100, Auto white balance
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High-position shooting ease
The α300's variable-angle Clear Photo LCD monitor makes it easy to maximize the shooting freedom offered by Quick AF Live View. For high-position shots, the monitor can be angled downward, enabling you to frame your subject accurately even with the camera held at arm's length above you. As a result, you can take well-composed photos at sports events, concerts, and other public venues even when you need to shoot over the heads of a crowd. Or you might just find it's the perfect way to capture the excitement of young footballers as they huddle to discuss their game plan!
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Low-position shooting comfort
Thanks to the α300's Quick AF Live View and variable-angle Clear Photo LCD monitor, low-position shooting is incredibly easy. With the monitor angled upward, you can maintain a comfortable posture and frame your subject correctly even when taking dramatic, low-position sports photos like the one above. Low-position live view shooting is also great for macro close-ups of flowers, and eye-level portraits of children or pets. It's even helpful on regular portraits because you can hold the camera at waist level and maintain a dialogue with your subjects to ensure a more natural expression.
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Real-time image-adjustment display
Live view even lets you confirm the effects of exposure and white balance adjustments on the Clear Photo LCD monitor in real time — something that is impossible to do with an optical viewfinder.
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Real-time exposure compensation display
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-1.0
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+1.0
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Real-time white balance display
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Auto
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Daylight
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Smart Teleconverter function in live view
During live view shooting, you can press the Smart Teleconverter button on the back of the camera to instantly apply zoom scaling that achieves the effective equivalent of 1.4x or 2x magnification. There's no reduction in image quality because only the size of the image area is reduced, so even 2x images can be turned into great-looking prints.
* With Smart Teleconverter function, image size is automatically set to M size at 1.4x, or to S size at 2x magnification.
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