Many Sony FS5 users are experiencing artefacts in UHD mode which they seem to think is a processing problem but 3200 ISO with standard gamma is +9dB gain so its noisy and on top of the 8 bit codec its compressed 32:1…you can’t avoid artefacts.
Alister Chapman ” I believe the edge tearing artefact reported by some is due to the temporal noise reduction that the camera uses. As you pan or tilt the camera the areas around edges will change from frame to frame while large more solid areas of the picture change little. Because of the differences from frame to frame you won’t get any noise reduction in these areas so edges can become coarse and “fuzzy” or jittery as there is on the one hand a marked increase in noise on the edges and at the same time a ghost image from the adjacent frames. At 0db this is barely visible and certainly not an issue with real world shots but ramp up the gain and this increases rapidly. These are fairly typical side effects of temporal NR.”
“The FS5 is a great little camera, I really enjoy shooting with mine and I think the results I am getting are great. I know that I can get a technically better 4K/UHD image from my FS7 or F5, but sometimes it’s not just about getting the best technical quality. The FS5 allows me to shoot more freely, it’s a breeze to carry around or travel with, I can throw it on a gimbal, on the end of a microphone boom pole, chuck it and a bunch of lenses in a small back-pack, it’s fun to use! As a result I’m getting shots that I just can’t get with the FS7 or F5.”
See more about this issue at XDCAM-USER http://www.xdcam-user.com/2016/01/my-response-to-all-the-fs5-artefact-issue-complainers/
Andrew Reid from EOSHD counter claims Alister Chapman and reckons the edge tearing is a bug that Sony need to fix, Andrew also owns the Sony FS5.
You can read Andrews response here http://www.eoshd.com/2016/01/response-alister-chapmans-response-sony-fs5-complainers/
HDW : I will be running my own tests today as I am probably one of the few not to rush in and update my FS5 to firmware 1.10 though there is no indication that the new FW is to blame.
Sony seriously need to address this ASAP by making a statement via Japan from the people who know this camera inside out, I do feel Alister’s +9dB scenario a bit hard to grasp as I have always tested most of my review cameras up to 9dBs and the majority of large sensor cameras cope well at 9dBs, especially super 35mm sensors.
It does not help that the “Native” ISO changes dependent on wither you are in standard gamma or Slog !
Here is a video which clearly shows the 8 bit UHD compression artefacts…