The Sony a99 II has pretty much the same sensor that’s inside the Sony a7r II, but for some odd reason cameras with older sensors appear to outdo it according to the latest DXOMark scores.
While Sony clearly beats out Phase One and Canon, both Pentax and Nikon outdo the a99 II’s sensor. The Sony. thephoblographer.com
Sony's first foray into DSLRs, particularly the Alpha series, began in 2006 with the a100. The camera was distinct, with its successor, the a900, being the most sought-after full-frame DSLR of its time.
In some ways, it perplexes me that Sony still has the a99 and Alpha series of cameras. Sure, they're from the Minolta days and have a heritage behind them but admittedly the company doesn't push them anywhere as hard as they do their E mount lineup.
Though Sony was the first to the game with full frame interchangeable lens mirrorless cameras with autofocus, the company has traditionally played catch up in the digital photography world--and there seems to be a bit of that with the Sony a99 II.
It's been years since Sony has updated the a99, and at Photokina 2016 the company announced the successor--the Sony a99 II. Chock full of upgrades like a 42.2MP full frame sensor, hybrid autofocus detection, 4K video without pixel binning, 12 fps shooting capabilities in raw with a buffer of up to 56 images and a new three way tilting LCD screen there is surely a lot to love here.