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Type: Posts; User: marvinhello

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  1. Replies
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    FS7: FS7 has highlight latitude of about 6.2 stops,...

    FS7 has highlight latitude of about 6.2 stops, shadow latitude about 7 stops depending on how much noise is tolerable to you. Alexa has 7.4 above 18% grey and also roll-off is much nicer instead of...
  2. 1DC: Basically he said the Canon technicians and...

    Basically he said the Canon technicians and engineers would go above and beyond to identify and fix the problem. :huh:
  3. 1DC: I have 1D C and the issue you experienced. Called...

    I have 1D C and the issue you experienced. Called US cinemaeos support hotline, they seem to be well prepared for these 1D C specific complaints. The guy on the phone was saying it happens on all...
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    F5: Extra pixels are used for calibration purposes.

    Extra pixels are used for calibration purposes.
  5. Thread: Headroom

    by marvinhello
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    FS7: It's EI, not ISO EI 2000 gives you about 6.2...

    It's EI, not ISO

    EI 2000 gives you about 6.2 stops of highlight latitude. Generally overexpose 1-1.5 stop to get cleaner shadow (meaning shooting around EI 800)
  6. F65: F65 has the best colour separation among all...

    F65 has the best colour separation among all digital cameras, but overall colour science, especially skintone is not that great (little too much magenta in skin).
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    It depends on how you configure it, it can be...

    It depends on how you configure it, it can be very minimal on a 3axis stabliser, have a look at “Journey" shot on Alexa mini.
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    F3: IDT is not camera specific, you only need the IDT...

    IDT is not camera specific, you only need the IDT with the correct colour space (eg. F5 FS7 all shoot SLog3)

    In this case, ACES IDT has the entire SLog and SGamut family you can access....
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    F3: ACES offers such colourspace conversion and a lot...

    ACES offers such colourspace conversion and a lot more possibilities. Use OpenColorIO if you rely on After Effects, Premiere or Nuke.
  10. 1DC: FS7 has its own unresolved issues as well (in all...

    FS7 has its own unresolved issues as well (in all compressed format), like highlight aliasing (discoloration at high contrast edges) and overall magenta colour cast. Also the noise pattern in shadow...
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    FS7: highlight aliasing, this effect can be seen on...

    highlight aliasing, this effect can be seen on all compressed recordings (F5/FS7), it's caused by the way the camera debayers the signal.

    Only way to avoid this is to shoot RAW.
  12. 1DC: C100/300/500 has Black Balance feature.

    C100/300/500 has Black Balance feature.
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    1DC: HDMI output from 5D3, 1DC IS uncompressed, it's...

    HDMI output from 5D3, 1DC IS uncompressed, it's debayered to 8bit 422, RAW from Magic Lantern is undebayered linear sensor data.

    H264 codec has uncompressed (lossless) option, same for JPEG...
  14. F5: ACES does not work with LUTs(and filmconvert...

    ACES does not work with LUTs(and filmconvert etc.). You need to use specific IDT and RRT/ODT and manually do the grade, ACEScc offers a familiar starting point.

    I suggest you do some research on...
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    1DC: The write buffer on 1D C/1D X is much bigger than...

    The write buffer on 1D C/1D X is much bigger than 5D3 (more than double I believe), it handles full 5K 12fps burst for about 4-5 sec (with UDMA7 card), that's for stills with ~20MB a frame.

    So my...
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    1DC: There's a way to hack the camera without a...

    There's a way to hack the camera without a firmware file, it's just a matter of whether they are willing to do it or not.
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    FS7: Amazing work! I'm particularly interested in the...

    Amazing work! I'm particularly interested in the chromatic adaptation tool, achieving accurate white balance in post is a vital step to me (kelvin & tint), with RED cameras it's easy to just shoot...
  18. 1DC: CLOG on 1D C uses BT.601 matrix, you might need...

    CLOG on 1D C uses BT.601 matrix, you might need to use a LUT to convert to BT.709
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    FS7: those 1.5 stops are reserved for the future,...

    those 1.5 stops are reserved for the future, actual DR on current cameras remain unchanged from SLog2 (6 stops above 18% grey)
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    FS7: Full scan with default 4K OLPF = image with heavy...

    Full scan with default 4K OLPF = image with heavy moire/aliasing in certain situations

    Centre scan with default 4K OLPF = little softer (than normal scan) but nice clean image.

    On F5/F55 there...
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    FS7: SNR in the shadow area is higher in HD mode due...

    SNR in the shadow area is higher in HD mode due to downsampling, theoretically each time you scale to half of the original resolution, you gain 0.5 stop of shadow DR. so scaling from 8MP to 2MP gets...
  22. 1DC: Adding new features will not happen, as...

    Adding new features will not happen, as development specifically for 1D C has discontinued, they only do maintenance (fixing bugs in existing firmware).
  23. 1DC: Some areas/sellers offer free shipping

    Some areas/sellers offer free shipping
  24. 1DC: To prevent unauthorised access to the firmware...

    To prevent unauthorised access to the firmware file, so no hack.
  25. 1DC: underwhelming

    underwhelming
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