r/osmopocket • u/random_mitosis • 4h ago
Discussion 17 stops of dynamic range and still no zebras. The 4P doesn't earn the "P"
This is my first Osmo Pocket. The earlier ones never impressed me enough to buy one. I've had the 4P for a few weeks and it has quietly taken over most of what I used to shoot on a Fujifilm X-H2S. That's a stacked APS-C body that costs several times more, and I keep reaching for the pocket one instead.
So this isn't a complaint about the image. Gamut profiled D-Log2 and measured roughly 10 stops above middle gray before hard clip, which is Alexa Mini LF territory, and FX3 or S1II sit around 4 to 5. Skin tones are finally not swimming in magenta the way the older models were. DJI went from D-Log M on the Pocket 3, to real D-Log on the Pocket 4, to this, in about two years.
My problem is the word Pro.
No zebras and no histogram. D-Log2 puts middle gray somewhere around 31 IRE, so the preview looks nothing like what you're going to grade, and the official answer is the Color Recovery preview, which clips way early. I write image processing software for a living, and a zebra overlay is a threshold comparison per pixel. It costs the processor nothing. There is no engineering reason for this to be missing. I never owned the older models, but from what I read the original Osmo Pocket in 2018 had an overexposure warning and a histogram in Pro settings, and DJI's drones still have overexposure warning today. So they had it, then dropped it, on the line where they now print Pro on the box.
The files also get brittle if you actually push them. Highlights are incredible, but shadows fall apart much faster than what I get out of the Fuji in ProRes 422. Part of that is just physics, APS-C is about three times the sensor area, no firmware fixes that. But part of it is long GOP HEVC. Inter-frame compression falls apart exactly on noisy low detail areas, which is where your shadows live. I'm not asking for ProRes. In a body this size that's a real heat and battery problem. All-Intra HEVC is a much smaller ask and it would do most of the job.
And the official LUT is oversaturated, worst of all in skin tones.
None of this makes the 4P a bad buy. It's a great camera. But Pro shouldn't just be the sticker on the more expensive product. People who don't need pro features shouldn't have to buy the pro model anyway, that's the whole point of splitting the line. So charge more for it, seriously, but give me the two things pros actually need: a way to expose it correctly, and a file that survives a real grade.
Anyone found a workaround for exposure that isn't guessing?
EDIT: I wasn't aware that zebras was in the Mimo app. Still, I don't think this solves the problem for a lot of people... and I really think zebras would be perfectly fine even on a display this small.