Videografie met DSLR #20 Canon is beter dan Nikon

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The general consensus among DSLR cinematographers seems to be that capturing a flat image will maximize the control and freedom for color grading in post. This false notion probably stems from semi-informed bloggers comparing the color handling of DSLRs to that of higher end devices and shooting formats with no consideration given to the limitation of the camera’s compression algorithm (h.264) and coding space (8-bit).

The RAW data of a Canon DSLR camera is 14-bit. This means that the analog-to-digital conversion on the sensor yields 14-bit values (between 0 and 16383). This is enough to represent accurately dynamic range spanning 12 stops when encoding it linearly. The picture style tells the camera how to put all that RAW dynamic range into 8 bits.

Once DSLR footage has been compressed to the highly destructive h.264 8-bit codec, you’re left with only 256 discrete tonal values.
RedCode or ArriRaw for example are 12-bit which equates to 4096 tonal values.

You’d probably agree that 256 is a lot less than 4096. That it’s not exactly the same ballpark, that it ain’t the same league and that it ain’t even the same f#c?in’ sport.

So if all your camera has to offer is an 8-bit codec, why minimize contrast and saturation in camera only to add it back in in post, sacrificing tonal precision, control and often time?
Why flatten your image when it only makes it more susceptible to posterization and noise extraction? Why de-saturate it when adding saturation in post will result in chroma banding?
Because someone at some point decided to indoctrinate DSLR users to replicate a RAW workflow that does not conform with the technical limitations of the cameras?

That rather unsatisfiing conclusion led us to develop what we believe to be the most thoroughly programmed and reliable profiles for professional videographers that embrace all the strength of these revolutionary cameras and make up for some of their shortcomings. No picture style will ever turn a camera that captures consumer grade video into an Arri Alexa and we certainly don’t want to suggest otherwise.

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Op maandag 20 januari 2014 15:27 schreef Pietverdriet het volgende:

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Mouth Breather Brothers?

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Op maandag 20 januari 2014 19:24 schreef Peter_Aragorn het volgende:

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Gewoon RAW filmen. Hoef je je niet druk te maken over picture styles...