The A7 and A7R were the two very first full frame mirrorless cameras released by Sony in late 2013. They expanded the E-mount system and marked the beginning of a new era that saw the company become one of the most beloved full frame camera brands, as well as one of the best sellers.
The two original models have been discontinued for some time now, but you can still find them second-hand, and for a tempting price.
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