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Sony A7R Introduction
The November 2013 Sony Alpha A7R produces 36-megapixel 7360 X 4912 images from a full frame sensor, allegedly the same sensor as the Nikon D800, and like the D800E, without an anti-aliasing filter. But image quality is a sum total of sensor and electronics and stored file format.
The A7R uses a focal plane shutter which is among the loudest your author has ever used on on camera short of medium format, which naturally raises vibration concerns.
The sibling RX1 / RX1R fixed-lens cameras have a whisper-quiet in-lens leaf shutter with full flash speed sync—radically different. It’s a shame that the Sony/Zeiss lenses were not designed with leaf shutters so that the A7R could operate like the RX1R.
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
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