DJI Osmo Action 6 setting guide
One lens.
Four useful choices.
Use f/2.0 for light, f/2.8 for consistency, f/4.0 for closer focus or starbursts—and Auto when the scene changes faster than you can.
Quick answer: which Action 6 aperture should you use?
Leave Osmo Action 6 in Auto for most travel and everyday action. Lock f/2.0 when low light and motion make every bit of light valuable; choose fixed f/2.8 for repeatable daytime clips; use f/4.0 Starburst for point-light effects or subjects as close as about 20 cm.
| Decision | f/2.0 | f/2.8 | f/4.0 | Auto |
|---|---|---|---|---|
| Low light | Best fixed starting point | Usable with enough light | Not the first choice | Best when light changes |
| General action | Useful after sunset | Simple and repeatable | Special-purpose | Best all-round default |
| Close focus | No official distance used here | About 35 cm | About 20 cm | Depends on selected range |
| Point lights | Prioritizes light intake | Neutral look | Six-point starburst | May not hold the effect |
| Clip consistency | Fixed, low-light bias | Most familiar workflow | Fixed, creative look | Aperture may change |
How variable aperture works on Osmo Action 6
Action 6 is DJI’s first action camera with a variable f/2.0–f/4.0 aperture. The opening inside the lens changes how much light reaches the 1/1.1-inch square sensor. A lower f-number means a wider opening; a higher number means a smaller opening.
DJI turns that hardware into four useful operating choices: Auto, Large Aperture at f/2.0, Fixed at f/2.8, and Starburst at f/4.0. In Auto, you can set the allowed range to f/2.0–f/4.0, f/2.2–f/4.0, f/2.4–f/4.0, f/2.6–f/4.0, or f/2.8–f/4.0. The default is the full f/2.0–f/4.0 range.
This is more than a brightness control. On Action 6, aperture also changes the close-focus behaviour, supports the Starburst look and gives you another way to balance shutter speed and ISO. DJI notes that mode availability can vary with certain shooting modes or accessories, so verify the option on the camera before a critical take.
For the official mode definitions, see DJI’s Osmo Action 6 FAQ and specifications.
The variable aperture is optical hardware—not merely an exposure preset.
When should you use f/2.0?
Choose Large Aperture f/2.0 when the scene is dark and movement matters: indoor sport, cycling under dense tree cover, late-afternoon skiing, a motorcycle ride at dusk, a dim restaurant or a low-light walk-and-talk.
A wider aperture lets more light reach the sensor. At the same shutter speed and target exposure, that can reduce the ISO the camera needs. For action, the extra light can also help you preserve a more useful shutter speed rather than letting motion become excessively smeared.
Important: f/2.0 does not guarantee cleaner footage. Noise and detail still depend on ISO, shutter speed, exposure, movement, stabilization, resolution and processing. Treat f/2.0 as more light to work with—not an automatic quality button.
Good f/2.0 starting scenarios
- Night riding: prioritize enough light and a usable shutter before chasing a cinematic motion-blur rule.
- Indoor sport: a fixed wide aperture avoids the camera stopping down while the action remains fast.
- Canadian winter afternoons: snow may be bright, but forest sections and late-day light can change quickly; Auto may be safer if conditions alternate.
- Low-light vlogging: f/2.0 is useful when your face is lit poorly, but exposure on the face still matters more than the mode label.
Why fixed f/2.8 still matters
Fixed f/2.8 is the familiar action-camera workflow. It is a strong daylight default when you want the camera’s optical behaviour to remain consistent from one clip to the next.
That predictability matters for helmet footage, cycling, skiing, motorcycle sequences and multi-clip edits. If you are manually managing shutter and ISO in Pro mode, fixing the aperture removes one variable. DJI states a minimum focusing distance of about 35 cm in this mode.
Use f/2.8 because you value consistency—not because it is universally sharper or “more professional.” If you move from sun to deep shade, Auto may deliver a more usable exposure with less intervention.
For a route with stable daylight, fixed f/2.8 keeps the optical setting predictable.
What f/4.0 Starburst mode is actually for
f/4.0 is not simply the “bright-day setting.” DJI’s Starburst mode fixes the aperture at f/4.0, lets point light sources form a six-point starburst and shortens the stated minimum focusing distance to about 20 cm. The official f/4.0 focus range is 0.2 m to infinity.
That creates two practical uses. First, you can move closer to food, hands, tools, bike components, product details or travel objects than you can at fixed f/2.8. Measure roughly from the lens—not the subject’s nearest decorative edge—and check focus on the screen before recording.
Second, small bright sources such as street lamps, headlights, decorative lights or a city skyline can take on a deliberate six-point star effect. The subject must contain suitable point lights; turning on Starburst does not add stars to a flat, evenly lit scene.
Should you just leave Action 6 in Auto?
For most owners, yes. Auto is especially useful for travel, family shooting, changing weather, a ski run moving between open slope and shade, cycling through trees, or walking from outdoors into shops and transit.
The clever part is that Auto is adjustable. The full f/2.0–f/4.0 range gives the camera maximum flexibility. Raising the minimum to f/2.8 keeps Auto from opening wider than f/2.8 while still allowing it to stop down to f/4.0. That can be useful when you want a more constrained look without fully fixing the aperture.
Switch away from Auto when a clip must match another clip, when you have built exposure around a manual shutter/ISO combination, when you deliberately want Starburst, or when a dark action scene makes f/2.0 the known priority. Auto is convenient; fixed aperture is predictable.
How to change aperture on Osmo Action 6
Menu availability can depend on the current shooting mode or attached accessory. Firmware and app interfaces can also change, so confirm the path on your installed version.
Best aperture by real shooting scenario
Night video
Start with f/2.0 for moving subjects. Use f/4.0 only when the starburst look is more important than maximum light intake.
Cycling, skiing and motorcycles
Choose Auto for mixed shade and sun, fixed f/2.8 for stable daylight, and f/2.0 when light drops but the action stays fast.
Travel and vlogging
Auto handles changing locations best. Lock a setting only when you know the lighting and want clips to match.
Close-up details
Use f/4.0 and keep the subject at least about 20 cm from the lens. For anything closer, aperture alone is not the solution.
If you are still deciding whether the variable aperture is worth upgrading for, compare it in context in our Action 6 vs Action 5 Pro guide. For a cross-brand buying decision, see Action 6 vs GoPro HERO13 Black.
f/2.0 vs SuperNight: they solve different problems
f/2.0 is optical: the lens opening admits more light. SuperNight is a low-light video mode that uses the camera’s capture and processing pipeline. One does not make the other irrelevant.
For moving action, begin with the shot you need, then test whether the selected mode preserves acceptable motion, stabilization and detail. SuperNight is designed for dark scenes, but no processing mode can replace good exposure or prevent every moving subject from blurring. Likewise, f/2.0 supplies more light but does not promise a clean image at any shutter or ISO.
Does f/2.0 create strong background blur?
Do not expect full-frame-camera bokeh. Action 6 combines a 1/1.1-inch sensor with an ultra-wide 155° field of view, a system that naturally keeps much of the scene in focus. Variable aperture is primarily valuable for light control, closer focus at f/4.0 and creative starbursts—not portrait-style subject isolation.
Do you still need ND filters?
Sometimes. Variable aperture can reduce light by stopping down to f/4.0, but it cannot always remove enough light to hold a slow, motion-blur-oriented shutter in bright sun. An ND filter can still be useful when you deliberately want a specific shutter speed. For fast action, however, a faster shutter may be more practical than forcing the 180-degree shutter guideline.
Filters also add another optical layer and may affect which modes are available. Confirm Action 6 compatibility and run a short stabilization, flare and vignetting test before an important shoot.
Shop the camera and a compatible ND option
These are the exact SpeedyDrone listings checked for this guide. Use the live product pages for current price, order status and package contents.
DJI Osmo Action 6 Standard Combo
The core Action 6 kit with the variable-aperture camera, one Extreme Battery Plus, quick-release adapter mount and essential mounting accessories.
NEEWER CPL + ND Filter Set (4 Pack ND8/16/32+ CPL) DJI Osmo Action 6
A separately listed compatible filter option for deliberate bright-light shutter control. Check the live listing and test the selected filter with your intended shooting mode.
Common Action 6 aperture mistakes
- Leaving f/2.0 locked all day: the widest aperture is a low-light tool, not an automatic best-quality setting.
- Treating f/4.0 only as “darker”: its close-focus and point-light rendering are the more interesting reasons to use it.
- Expecting portrait bokeh: an ultra-wide action camera behaves differently from a large-sensor portrait camera.
- Forcing Starburst without point lights: the mode needs suitable small, bright sources to create the effect.
- Ignoring shutter and ISO: aperture is one part of exposure, not the whole exposure strategy.
- Using fixed aperture in chaotic light: Auto is often the smarter operational choice when conditions change quickly.
DJI Osmo Action 6 aperture FAQ
What is the best aperture for DJI Osmo Action 6?
Auto is the best default for most owners because it adapts to changing light. Use f/2.0 for known low-light action, fixed f/2.8 for predictable daylight clips, and f/4.0 for close details or starbursts.
Should I use f/2.0 or f/4.0 at night?
Use f/2.0 when maximum light intake and usable moving footage are the priority. Use f/4.0 Starburst when point lights are the creative subject and you can accept less light reaching the sensor.
What does fixed f/2.8 do on Action 6?
It gives you a consistent, familiar action-camera workflow. DJI states a minimum focusing distance of about 35 cm in fixed f/2.8 mode.
How close can Osmo Action 6 focus at f/4.0?
DJI specifies a focus range of 0.2 m to infinity at f/4.0, so the practical minimum is about 20 cm. Confirm focus on screen before recording.
What does Starburst mode do?
Starburst fixes the aperture at f/4.0 and can render suitable point light sources as six-point stars. It also supports the camera’s approximately 20 cm minimum focus distance.
Does f/2.0 always give cleaner low-light video?
No. It lets in more light and may reduce the ISO needed at the same shutter speed and exposure, but the result still depends on shutter, ISO, movement, stabilization, resolution and processing.
Does f/2.0 create strong background blur?
Not like a full-frame portrait camera. The 1/1.1-inch sensor and 155° ultra-wide view naturally produce deep focus; the main benefits are exposure flexibility, close-focus behaviour and starbursts.
Do I still need ND filters with variable aperture?
You may. f/4.0 reduces light, but an ND filter can still be useful when bright conditions prevent the slower shutter speed you intentionally want. Test compatibility, flare and vignetting first.
Can I change Action 6 aperture in DJI Mimo?
Yes. On the main shooting screen, open the three-dot More menu, enable Variable Aperture and choose the required mode. Menu availability can depend on the shooting mode or accessory.
Choose the Action 6 setup that fits your shooting
Compare current Canadian combo options, package contents and live order status before you build your next action-camera kit.
Explore DJI Osmo Action 6 in CanadaProduct links and availability references checked September 12, 2026. Confirm current details on the live listing.
