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ACES + RED = clipping highlights
I’ve been testing ACES and RED extensively the past few hours. What I see, no matter what the shots look like, is that the highlights are blown out most of the time.
Maybe I’m doing something wrong?
In the LUTS settings I have
Input device: RED
Output device: P3 D60Monitor is set to D-cine color space.
Anyone?
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11 Replies
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I’ve had similar results Ola after playing with it a few weeks ago. I loaded some RED footage then set Resolve to ACES color science.
Input Device Transform to RED and L
Load Output Device Transform to REC.709Uncorrected image was bright and blown out. I managed to bring the overall luminance down and came up with a pretty decent image. I did notice a bit of noise in the blacks though.
I’m not sure if I was going about this correctly.
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Hmm yes, well, I don’t have problems with noise really. What I see is that the waveform is flat in the highs – it’s clipping the heck out of the highlights. If I switch to RGB and use RED settings, then grade, there’s plenty of information to pull down.
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Glad that I’m not the only one seeing this…
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I second this
A slice of color…
DaVinci 8.0.1 OSX 10.7
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RAID0 8TB eSata 6TB
GTX 470 / GT 120
Extreme 3D+ WAVE -
An example. Guess which is ACES. Don’t get me wrong, i like ACES. Just the highlights being clipped on RED material is something I don’t understand.
On the other hand, I might be using it wrong?
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Bottom one is ACES….??? I guess
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Nope, try again.
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Look at the back of the hand.. and the reflection on the red chair and the vertical piece to the left of the door. they look kinda pinged out.
CJ -
I recently tried the Alexa transform on a RED shot, the highlights are still gone but the color results were very interesting. Definitely better than the Red transform.
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It’s been two years and they still haven’t fixed it.
I was testing this as well and the footage is getting clipped in the highlights and you’re losing latitude in the top part and it adds a lot of noise. The colors are great thought.
Maybe it only works with the default ISO of 320. Because I almost always shoot at ISO 800 I can’t test it. But after selecting ACES and then setting the IDT to Red and the ODT to 709, all my footage seems overexposed, you can pull it back, but not the highlights and it adds significant noise.
Have any of you successfully graded something using RED footage and ACES in Resolve?
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