Sony Alpha DSLR-A900

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The Sony Alpha DSLR-A900 was Sony's first professional DSLR, the flagship of the Sony α system from 2008 to 2011. It has Sony's special Exmor CMOS image sensor which has no pixels hidden behind conducting paths of the chip, thus being more light sensitive with a better dynamic range than older Sony sensors. The sensor has almost the same format as the 24x36mm image frames of the normal 35mm film cameras, thus giving an advantage to those photographers who have good old autofocus lenses for analog Minolta AF cameras. New lenses for this Minolta/Sony Alpha lens system are available from Sony and Zeiss. Be careful not to choose one designed only for Konica Minolta or Sony DSLRs with smaller "APS" format chip.

The camera once made hopes that Sony would become a high-end DSLR maker. But Sony never released further full-format DSLRs since the A900 and its budget variant A850. In 2010 it made its last APS-C DSLRs.