This is the fourth in a series of posts on the Sony a9. The series starts here. I’ve been asked to look into the digital lowpass filtering in the Sony a9 as a function of exposure time, to see it it has the same “star-eater” filtering beginning as 4 second exposures that was introduced to… [Read More]

This is the third in a series of posts on the Sony a9. The series starts here. I made a series of dark field images with the raw format set to uncompressed, and the mechanical shutter set to electronic first curtain shutter (EFCS). When I used the continuous drive mode, I set the rate to… [Read More]

This is the second in a series of posts on the Sony a9. The series starts here. On the a7x cameras, the quantizing precision of raw files is 13 bits in compressed raw mode with the mechanical or EFC shutter and the drive mode set to single shot. If you use the electronic shutter (called… [Read More]