Are We Supposed To Use LUT's / CST with DaVinci Wide Gamut?

Are we supposed to be using LUT's or CST's in the node tree when working with Panasonic V-LOG 10-bit when using DaVinci YRGB Color Managed and DaVinci Wide Gamut?

Resolve 17 Studio Version 17.08 Build 23

If I apply a LUT in the node tree, then the exposure drops significantly (I have to raise the offset in a node PRIOR to the LUT node from 25 to about 32 just to get my mid-tones about right.)

Here's what it looks like after adding a LUT with no other adjustments:

lut_only.jpg (933.64 KiB) Viewed 1586 times

On the other hand, if I instead use a Color Space Transform then the luminance levels look "normal".

for the color space transform I have these settings:

Input Color Space: DaVinsi Wide Gamut
Input Gamma: DaVinci Intermediate
Output Color Space: Rec.709
Output Gamma Rec.709

Thanks in advance for letting me know what I am SUPPOSED to do.

In the context of DaVinci YRGB Color Managed... forget LUTs even exist... unless you have a specific artistic purpose for which you're using them. You don't need a CST either.

If you'd like to work in DaVinci Wide Gamut, then set project settings to DaVinci Wide Gamut but you need to set your Input color space to V-Log for the clips.

You can do that either in the project settings by going to Custom and changing input or by setting it directly for the individual clips.

In the context of DaVinci YRGB Color Managed... forget LUTs even exist... unless you have a specific artistic purpose for which you're using them. You don't need a CST either.

If you'd like to work in DaVinci Wide Gamut, then set project settings to DaVinci Wide Gamut but you need to set your Input color space to V-Log for the clips.

You can do that either in the project settings by going to Custom and changing input or by setting it directly for the individual clips.

Thank you for the reply. that is very helpful.