DJI D-Log M to Rec.709 on iPhone

D-Log, D-Log M and D-Log2

DJI has shipped three Log flavours. D-Log is the older, flatter profile of the Mavic 3 generation and the Osmo Pocket 4 line; it needs the most work in the grade. D-Log M is the profile most current consumer drones and action cameras record; it keeps 10-bit dynamic range but sits closer to a viewable image. D-Log2 is DJI's newer curve; in LUTLINE's catalogue it appears on the Osmo Pocket 4P. Each has its own conversion table, and they are not interchangeable.

Profile	Cameras in LUTLINE's catalogue	Conversion
D-Log M	Mavic 4 Pro, Mavic 3, Mavic 3 Classic, Air 3S, Air 3, Air 2S, Mavic 2, Mini 5 Pro, Mini 4 Pro, Flip, Lito X1, Osmo Action 6, Osmo Action 5 Pro, Osmo Action 4, Osmo 360, Osmo 360 II, Osmo Nano, Osmo Pocket 3, plus a generic "Other D-Log M cameras" entry	DJI D-Log M to Rec.709
D-Log	Mavic 4 Pro, Mavic 3, Mavic 3 Classic, Osmo Pocket 4P, Osmo Pocket 4	DJI D-Log to Rec.709 (standard and Vivid)
D-Log2	Osmo Pocket 4P	DJI D-Log2 to Rec.709 (standard and Vivid, V1 and V2)

One table, many bodies

DJI publishes a conversion LUT per product, but the files are not all different. When LUTLINE's catalogue was built from DJI's downloads, twelve current bodies — Air 3 and 3S, Flip, Mavic 3 and 3 Classic, Mini 4 Pro, Osmo 360 and 360 II, Osmo Action 4 and 5 Pro, Osmo Nano and Osmo Pocket 3 — shipped a byte-identical D-Log M table. Mavic 4 Pro, Mini 5 Pro and Lito X1 share a second table; Osmo Action 6 has its own; Air 2S and Mavic 2 use the legacy one. That is why the app offers an "Other D-Log M cameras" entry: for a body that is not listed, the shared current table is very likely the right one.

How LUTLINE recognises a D-Log M clip

A DJI file that goes through the iPhone's Photos app is re-wrapped, and most of DJI's own metadata is dropped. What survives is the software tag (for example DJI OsmoAction5 Pro) and the file name, which DJI ends with _D when the clip was recorded in D-Log M — DJI_20250606122150_0011_D.MP4. The colour tags in the file say plain Rec.709, which is wrong, so an app that trusts the tags shows the flat Log image without conversion.

LUTLINE therefore uses the _D naming as the D-Log M signal and the software tag to pick the body when it is known. The Source sheet shows the evidence — D-Log M · from the file name — so you can see why Auto chose what it chose, and change it in one tap if a rename removed the suffix.

Grading D-Log M: the order that works

1. Convert. DJI's table takes the Log curve out and renders to Rec.709. In LUTLINE this is the Source stage, on a 10-bit read path.
2. Correct. Drone footage is often a third of a stop under, and skies pull the white balance cool. Fix exposure, then temperature, then contrast.
3. Look. Apply a creative LUT built for Rec.709. Drone landscapes and action footage tend to suit the Cinematic, Daily and Clean categories; the intensity slider tames a strong look on wide, bright scenes.
4. Export. Match the source frame rate. For 100 or 120 fps clips, the export sheet notes that a fixed 30 or 60 fps renders a quarter or half of the frames; Match Source keeps every one. Exports above 4K 60 fps use HEVC, because H.264 on iPhone stops at Level 5.2.

Reading from an external SSD

Many DJI clips live on a portable drive plugged into the iPhone. LUTLINE can read them in place through Files. Keep the drive connected and awake for the whole render; if the reader stops mid-file, the export resumes from the last written frame up to three times before it reports a failure that names the drive as the likely cause. Copying long clips to the phone first is still the more reliable path.

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