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I need some help grading this .DPX from a 500T scan


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#1 Samuel Berger

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Posted 19 February 2018 - 02:30 PM

I've just received some 4K scanned Super 8 film from Cinelab. I don't know how to make it look normal, it's a flat scan. Can anyone with Resolve give me a hint?

 

Here's a sample DPX: 

http://www.classiche...mpcc/sample.dpx

 

I thought it would be as easy as opening it up and throwing a LUT. Well there aren't any LUTs for actual film in the menu....


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#2 Phil Rhodes

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Posted 19 February 2018 - 06:04 PM

Is that a bit underexposed, or does all Super8 look like that?

 

I've made an Adobe curves file which makes (what I consider to be) a reasonable job of the colour rendering, though it's abominably grainy.

 

super8png.png

 

P


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#3 Samuel Berger

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Posted 19 February 2018 - 06:17 PM

Thanks Phil, that is how I'd like it to look. I've been trying for hours but I'm probably going to give it a rest. I use DaVinci Resolve without knowing how to use it.

 

I shot that on a Canon 814XL-S and it was a pain to focus in low light.

 

Is there a way to apply that curves file on Resolve?


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#4 Samuel Berger

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Posted 19 February 2018 - 06:56 PM

By the way, it was shot wide open at 1.4. I needed at least 1.0 under those lights.


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#5 Phil Rhodes

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Posted 19 February 2018 - 07:04 PM

No idea. I've attached it, anyway - though I had to rename it to .txt because the forum won't let me upload .amp files.

 

(It's a mnemonic for "arbitrary map.")

 

I have a tool somewhere that'll render various LUT formats from .amp files, I can look it out if it's any good to you, but really it's not complex. It's just that gamma curve to somewhat normalise the contrast, and I sampled the white stripe on the camera-left side of the frontmost girl's jacket to take the blue cast out. That's why the RGB curves aren't completely linear, but it's very minor.

 

P

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#6 Phil Connolly

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Posted 20 February 2018 - 10:02 AM

There is a curves tool in resolve, that would do the job in a similar way.

 

On resolve 12 the curves tab is the 6th one along in the colour workspace.  


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#7 Bruce Greene

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Posted 20 February 2018 - 12:15 PM

I've just received some 4K scanned Super 8 film from Cinelab. I don't know how to make it look normal, it's a flat scan. Can anyone with Resolve give me a hint?

 

Here's a sample DPX: 

http://www.classiche...mpcc/sample.dpx

 

I thought it would be as easy as opening it up and throwing a LUT. Well there aren't any LUTs for actual film in the menu....

Actually, there are both curves and film emulation LUTs in Resolve.  You can start with the film emulation LUT, something like "Kodak 2383 - REC709" and it will emulate a film print.  The curve is built into the LUT.  I think you're going to need to read that big Resolve manual :)


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#8 Samuel Berger

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Posted 20 February 2018 - 04:05 PM

Done, here's the result: http://www.cinematog...045#entry493343


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