On this page · 8 sections
◆ Key takeaways
- What is dynamic range? The number of stops a sensor holds between clipped white and noisy black.
- Each stop doubles the light, so 14.5 stops is twice the contrast ratio of 13.5.
- Insta360's product pages list 14.5 stops for the Insta360 X6 and 13.5 for the Ace Pro 2. GoPro and DJI state theirs outside their spec tables.
- Log carries the range into the edit. HDR video is a separate delivery format.
What Is Dynamic Range?
A sensor has two limits. At the bright end, each pixel fills and records flat white, which is clipping. At the dark end, the signal sinks into electronic noise, the noise floor. The ratio between them is the sensor's dynamic range.
A noon sky over a shaded forest floor can span more stops than a small sensor holds, and something has to give. The sky is always the first thing to go.
Blown highlights hold no data, so nothing comes back in editing. Crushed shadows hold a little, but lifting them drags the noise up with the detail. On a histogram, a wall of pixels at the right edge means clipped highlights.
Audio engineers use the term too. Here it means cameras.
Stops of Dynamic Range, Explained
A stop is a doubling or halving of light, the same step as one f-stop or one EV. A dynamic-range figure counts how many doublings fit between the clip point and the noise floor.
| Stops | Contrast ratio |
|---|---|
| 12 | 4,096:1 |
| 13.5 | about 11,585:1 |
| 14 | 16,384:1 |
| 14.5 | about 23,170:1 |
◆ Key finding
Half a stop is about 41% more contrast range, and a full stop is double. The 1-stop gap between the X6 (14.5) and the Ace Pro 2 (13.5) doubles the published contrast ratio. It says nothing about which image looks better.
Half a stop is the entire published spread among the single-lens GoPro vs DJI vs Insta360 flagships, with 13.5 stops for the Ace Pro 2 and the DJI Osmo Action 6 and 14 for the GoPro MISSION 1. US availability for the Osmo Action 6 shifts between DJI's store and retailers, so check before you buy.
What "Up To" Hides
GoPro's wording is "up to 14 stops of dynamic range at the sensor," from its April 14, 2026 MISSION 1 press release. DJI's is "up to 13.5 stops of dynamic range," in the Osmo Action 6 FAQ and its November 18, 2025 announcement. Insta360 labels the X6's figure "Max Dynamic Range."
None of the three makers publishes its test method or its noise threshold, and none says which mode or ISO produced the number.
Camera Dynamic Range: What Decides It on a Small Sensor
Camera dynamic range starts with sensor and pixel size, because a bigger pixel collects more light before it clips. The smaller 1/1.3-inch sensor and 13.5 stops are the core imaging trade-off of the Insta360 Ace Pro 2 against the MISSION 1's 1-inch-type sensor and GoPro's 14.
Base ISO gives the widest range. Each doubling of ISO pushes the highlights to clipping a stop sooner, and the amplified noise creeps up into the shadows.
Bit depth slices the range more finely without adding to it. An 8-bit file stores 256 levels per color channel and 10-bit stores 1,024, so a smooth sky holds up in a grade with less banding.
ACA's Insta360 X6 review notes that after dark, in PureVideo, the range narrows the way it does on any small sensor.
Dynamic Range in Photography vs Video
Dynamic range in photography has escape hatches. You can bracket exposures and merge them into one HDR still, or shoot RAW.
Outside an in-camera HDR mode, video gets one exposure per frame, and a moving scene can't be bracketed later. Exposure has to be right in the camera.
What Action Camera Makers Actually Publish
| Camera | Sensor | Published figure | Where it's published |
|---|---|---|---|
| Insta360 X6 | Two 1/1.1-inch | 14.5 stops | Product page |
| Insta360 Ace Pro 2 | 1/1.3-inch | 13.5 stops | Product page |
| Insta360 X5 | Two 1/1.28-inch | 13.5 stops | Product page |
| GoPro MISSION 1 series | 1-inch type | Up to 14 stops at the sensor | Press release (not on US product page) |
| GoPro HERO13 Black | not published | not published | not published |
| DJI Osmo Action 6 | 1/1.1-inch | Up to 13.5 stops | FAQ and launch announcement (not in spec table) |
Swipe for 1 more column →
Manufacturer pages checked Sep 30, 2026.
Only Insta360 prints the figure on the product page for every camera listed. The Insta360 X6 has the highest published figure here, at 14.5 stops.
The US product page for the GoPro MISSION 1 lists no dynamic-range figure. DJI's Osmo Action 6 spec table gives the sensor as "1/1.1-inch CMOS" and stops there.
What Is HDR Video?
HDR video is footage graded and delivered in a high-dynamic-range format such as HLG, HDR10 or Dolby Vision, so a compatible screen can show brighter highlights than standard (SDR) video. The ITU-R BT.2100 HDR standard names two transfer functions, Perceptual Quantization (PQ) and Hybrid Log-Gamma (HLG), coded at 10 or 12 bits per component.
Standard HD video follows ITU-R BT.709, which is why the X6 labels its standard color profile "Standard (Rec.709)."
On an action camera, "HDR" can mean three different settings:
| What the menu calls it | What it does | Examples |
|---|---|---|
| HDR capture mode | Holds more highlight and shadow detail in camera | Insta360 Active HDR (Ace Pro 2 up to 4K60, X5 up to 5.7K60) |
| HDR delivery format | Records a file tagged for HDR screens | HLG HDR on the MISSION 1 series and HERO13 Black; Dolby Vision on the X6 |
| Log profile | Records a flat image for grading | I-Log (X6, X5), GP-Log2 (MISSION 1 series), 10-bit D-Log M (Osmo Action 6) |
How Active HDR works is not published. DJI calls D-Log M "a lower-contrast video with a flat color profile," and log footage becomes HDR video only once you grade and export it that way. On SDR screens, HDR files can look washed out.
How to Get More Dynamic Range From an Action Camera
- Expose for the highlights, at around -0.5 EV in dappled or harsh light. Snow pushes the other way, which is why exposure and ISO settings by scene differ.
- Cap the ISO low.
- Shoot log or 10-bit where offered, and budget time to grade.
- Use an HDR capture mode for bright daylight you won't grade.
- Check night-mode clips for blown streetlights, because no maker here publishes a per-mode dynamic-range figure.
Most action cameras have a fixed aperture, the Osmo Action 6's f/2.0–f/4.0 aside, so ND filters for action cameras are the only way to cut light in hard sun and keep the shutter near double the frame rate. They change motion blur and add no stops.
Dusk is harder. Once ISO climbs, the noise floor rises into the shadows, so aperture width matters as much as sensor size among action cameras for low light.
Frequently asked questions
Is a Higher Dynamic Range Better?
Yes, a higher dynamic range is better for the same shot, because the camera can hold detail in a bright sky and dark shade at once. It stops helping once exposure goes wrong. A 14-stop camera still blows the sky if you overexpose it.
Is 12 Stops of Dynamic Range Good?
Yes, 12 stops of dynamic range is solid for a small sensor, though current flagships publish more. Insta360 publishes 13.5–14.5 stops, DJI states up to 13.5 and GoPro up to 14. Each extra stop doubles the contrast, so 14 stops covers four times the contrast of 12.
Is HDR Video Better Than 4K?
No, HDR video and 4K measure different things, so one can't beat the other. 4K is resolution, and HDR describes how much brightness range the file carries to the screen. A clip can be both, and HDR only looks better on a display that supports it.
Should I Turn HDR Video On or Off?
Turn HDR video on for bright, high-contrast daylight you won't color grade, and leave it off for low light or footage you plan to grade from log. HDR modes can also cost resolution. On the Ace Pro 2, Active HDR tops out at 4K60, below the camera's 8K30 maximum resolution.
What Is Wide Dynamic Range?
Wide dynamic range (WDR) is a label, used mostly on security and dash cameras, for in-camera processing that balances bright and dark areas in one frame. No single published standard defines it, so a WDR badge says the feature exists without saying how many stops the camera holds.
Read the Stops Before the Pixels
Back on that ridgeline, the sky clips first and the trail turns to noise second. The stops figure is the room between them.
So what is dynamic range worth when you shop? Enough to find that number, and where the maker printed it, before you look at resolution. Start with the stops column when you choose the best action camera, because the published stops figure decides its order.