LOGSORTIE

Osmo Pocket 4P D-Log 2 to Rec.709: LUT or CST in DaVinci Resolve

By Adrian Sava · Based on my own Pocket 4P footage

There are two ways to turn Pocket 4P Log footage into a normal Rec.709 image: a conversion LUT, or a color space transform (CST) in DaVinci Resolve. D-Log works with both. For D-Log 2, Resolve doesn't offer a CST at the time of writing, so you need a LUT made for D-Log 2.

Option 1: a D-Log 2 to Rec.709 LUT

This is the simplest route. The usual order is three nodes: exposure and white balance first, then the LUT made for the profile you shot in, and after it a node for contrast and color. The LUT expects a well-exposed Log image, so fix exposure before it, not after.

A D-Log 2 clip before and after the DJI D-Log 2 to Rec.709 LUT
A D-Log 2 clip of mine, before and after DJI's D-Log2 to Rec.709 V1.0 LUT. Nothing else applied.

Option 2: a CST in DaVinci Resolve (D-Log only)

A CST gives you more control, because you grade in a wide color space and convert at the end. For D-Log footage, the usual setup is a pair of CST nodes:

In the first CST, set Tone Mapping Method to None. The tone mapping goes only in the last one, the one that takes you to Rec.709. If you leave it on in both, it can clip highlights and push the reds.

DaVinci Resolve Color page with three nodes and the first Color Space Transform set from DJI D-Gamut and DJI D-Log to DaVinci Wide Gamut and DaVinci Intermediate, tone mapping None
A D-Log clip of mine in DaVinci Resolve Studio 20: three nodes, with the first CST selected.

Is there a CST for D-Log 2 in DaVinci Resolve?

Not at the time of writing. I checked it in DaVinci Resolve Studio 20: the CST input list includes DJI D-Log, but not D-Log 2. Check the list in your version, because an update may add it. Until then, use a D-Log 2 LUT.

Input Gamma list of the Color Space Transform in DaVinci Resolve 20, going from DCI to DJI D-Log and then Fujifilm F-Log, with no D-Log 2
The Input Gamma list in Resolve 20: after DJI D-Log comes Fujifilm F-Log. There is no D-Log 2.

Can you shoot slow motion in D-Log 2?

Not with the firmware I'm using: all my slow-motion clips from the Pocket 4P came out in D-Log. So if you shoot your normal clips in D-Log 2 and add some slow motion, you end up with both profiles in the same shoot, and two conversions.

Mixing D-Log and D-Log 2 in one timeline

Convert each clip with the LUT or CST for its own profile first, then match them. That is much easier if they're already in separate folders. More on that in D-Log vs D-Log 2 on the Osmo Pocket 4P.

LogSortie separates D-Log and D-Log 2 clips into folders, so each group gets its own conversion. More about LogSortie