Okay, here comes the promised comparison between uncompressed recording via BlackMagic Hypershuttle and Sony´s flavor of AVCHD recorded to SD card in camera.
As you can see, you can´t see barley any difference at all. Only in fast motion some minor differences are visible. Even with excessive grading to the material (much more that you would normally do) both material holds up about the same, before it falls apart.
That is good and bad. Good, because you can use cheap SD cards and AVCHD almost every time. Bad because I was spending money on the Shuttle and SSDs that I will use very seldom.
Actually I´m shocked how good Sony´s implementation of AVCHD is.
I figured out a new workflow that involves grading in linear color space.
That´s where the uncompressed BM material blows the AVCHD out of the water.
It´s much richer, smoother and… well hard to describe, but I would call it much fatter.
Also if you got much motion or detail or motion and much detail in the shot the differences are there and visible.
I also did some green screen tests, where the BM really shines.