PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)

In my rush to get this out I made a mistake on one of the captions. The S-Log3 was shot at 3200ISO, not 1000ISO.

 

So here are some frame grabs from video shot today with my FS5. There is no image processing other than the grading of the S-log3 clip and the upscaling of the HD clips to UHD in the video.

Default factory settings or picture profiles were used. The footage was exported from Adobe Premiere CC using Media Encoder at 3840×2160, H264 at 75Mb/s for upload to YouTube and Vimeo. You should be able to download the UHD H264 file from Vimeo.  This is what it looks like out of the box. All the shots were done at the same aperture (f9) and shutter speed (1/50) and the native ISO or 0dB gain used in each case. This means that the S-log3 was around 1.5 stops over exposed, which is about optimum for S-log and an 8 bit codec. As you can see the pictures are low noise with no significant artefacts and no banding in the sky, clouds or any other areas. You can also see that the S-log3 grades really nicely when shot this way and results in a very low noise image. In the video clip I have included some pans and tilts and everything looks perfectly normal to me.

Click on the thumbnails of the still images to go to larger and full resolution UHD and HD frame grabs.

UHD-709-1024x576 PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)
PXW-FS5 frame grab. UHD, factory default settings.
UHD-Cinegamma2-1024x576 PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)
PXW-FS5 UHD Picture Profile 6. Cinegamma 2
UHD-Slog3-1024x576 PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)
PXW-FS5 UHD Picture Profile 9, S-log3, ungraded.
UHD-Slog3-Graded-1024x576 PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)
PXW-FS5 UHD Picture Profile 9, S-log3, Graded Shot at 3200 ISO not 1000 ISO as indicated in the caption.

Note that even though the S-log3 is 1.5 to 2 stops over exposed the cloud highlights are still well within range after grading. I could probably over exposed by a further stop and still had great looking highlights and even less noise. S-log really like being over exposed. Log is the exact opposite of standard gamma. With standard gamma you shoot protecting your highlights but with log you must shoot to protect your shadows.

HD-709-1024x576 PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)
PXW-FS5 50Mb/s HD, factory default settings.
HD-Cine3-1024x576 PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)
PXW-FS5 50Mb/s HD, Picture Profile 5, Cinegamma 3

13 thoughts on “PXW-FS5 Factory Default Frame Grabs and Video (all at 0dB gain)”

  1. “With standard gamma you shoot protecting your highlights but with log you must shoot to protect your shadows.” Thanks Alister. I’ll remember that when my FS5 turns up.

  2. “With standard gamma you shoot protecting your highlights but with log you must shoot to protect your shadows.”

    And how do you shoot with HyperGamma’s?

    Thanks, Alister.

    1. Protect highlights. Hypergammas have a highlight roll off, so little data and poor contrast in the highlights so if you over expose they look like rubbish. Hypergammas are supposed to be exposed around 10% darker than 709 and then graded.

      Log does not have a highlight roll off, instead it has a shadow roll off. So good data and contrast in the highlights but very low data in the shadows. It’s the opposite of normal gammas so must be exposed the exact opposite of normal gammas, ie it works better when over exposed.

  3. Thanks for clarifying, Alister. Many people mistake high contrast for great dynamic range. It takes a lot of reading and testing to find out what works best in certain situations.

    High contrast situations are probably best dealt with in standard of hypergamma then.

  4. Typically a high contrast scene will also have a high dynamic range. But on a conventional TV screen, a high contrast picture is often indicative of a low contrast captured image, while a flat looking on screen picture is often indicative a wide capture range.

    S-log works best with the highest contrast scenes, next is Hyper/Cinegamma, worst is standard gamma. But you need to understand the different way to handle log if you are going to get good results from it.

  5. I shot some timelapses the other day and got a lot of banding. I shot in cine4 and 1000 iso. Any ideas? I think it may have something to do with color correcting in Adobe. I’ve yet to try in Davinci…

  6. Hi Alistair, is there a way to change the the 3 white balance options when in pp8/pp9 without actually having to go into the profile itself to switch to sgamut.xxxxK or sgamut.cine.xxxxK?

  7. Hi,

    When you shoot slog and over expose the footage, what way you use to color correct taking account of the overexposure : did you apply a special lut with light compensation or did you apply the same lut and do some color corretion to adjust ?

    Thanks

Leave a Reply

Your email address will not be published. Required fields are marked *