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Re: LUT for low dynamic range

Re: LUT for low dynamic range


Geoff Boyle
 

Contrast 1.6 pivot 0.5 or something close.

 

This brings the DR down to about 5 stops.

 

cheers
Geoff Boyle NSC FBKS
EU based cinematographer
+31 637155076

www.gboyle.nl

www.cinematography.net

 

 

From: cml-raw-log-hdr@... <cml-raw-log-hdr@...> On Behalf Of Video Assist Hungary
Sent: 29 June 2020 08:05
To: cml-raw-log-hdr@...
Subject: [cml-raw-log-hdr] LUT for low dynamic range

 

Hi all

Allow me to check my logic with you.

I was asked to do a LUT to simulate a camera with a dynamic range of 5 stops on an Alexa. That would mean to lose about 9 stops - it was not specified where.

I suppose i could grab levels controls and make a much steeper gamma curve. But the same result would be achieved by raising the highlights a lot, and maybe adjusting mid tones a bit, right? That would result in clipped whites, so a camera that has less stops ‘on the top’? Or similarly crushing the blacks?

Thanks
Balazs Rozgonyi
Ceo video Assist hungary

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