The previous announced Sony a9 firmware update version 5.0 will be officially released and available for download on March 25th, 2019. Sony a9 is currently $500 off at Amazon/B&H Photo/Adorama (According to B&H, $500 instant rebate will be expired tonight midnight.)
The Sony’s full frame mirrorless cameras are more and more popular today. The a7 III is one of the best selling full frame mirrorless cameras since it is released last year. Instead of buying new models, a lot of photographers now looking for used Sony full frame mirrorless cameras for the much cheaper price, sometimes you can get used models up to 50% off than new models.
The datasheet of IMX310 Exmor R sensor now has already leaked online. This Exmor R sensor has used on the Sony a9 (WW361847). From the datasheet, we can see that IMX310 sensor has 16 Bit, Global Reset Shutter, and on-chip dual gain HDR 96dB dynamic range.