Stabilization Explained: IBIS, OIS, EIS & Gimbal

Every modern camera promises smooth video. The promises mean very different things, and only some of them survive a walk down a real street.

Last reviewed on May 18, 2026.

"Stabilisation" on a camera spec sheet is a single word covering four very different technologies. Each one solves a different problem, each one introduces its own trade-offs, and only some of them combine well. Once you know what each system actually does, the right choice for a given shoot becomes obvious instead of guesswork.

The four systems, in plain language

1. Optical Image Stabilisation (OIS) — in the lens

A floating optical element inside the lens shifts to counteract small movements detected by gyros. OIS is excellent at correcting hand-tremor and small high-frequency vibrations. It does almost nothing for the big "walking bobbing" motion of someone striding forward — that motion is too large and too low-frequency for an optical element to follow.

2. In-Body Image Stabilisation (IBIS) — in the sensor

The entire sensor sits on a movable platform and floats inside the camera body, typically with 5 axes of correction (pitch, yaw, roll, plus horizontal and vertical shift). IBIS works with any lens — including unstabilised primes and adapted vintage glass — and corrects more axes than OIS. The image-quality penalty is essentially zero because the sensor isn't cropping or warping the image; it's physically moving to chase the scene.

3. Electronic Image Stabilisation (EIS) — in software

EIS uses a software crop to leave headroom around the recorded frame and digitally shifts the output to keep the scene steady. It's the most powerful of the in-camera systems at correcting big motion (walking), because it can crop and warp aggressively. The cost is a smaller field of view, occasional warping artefacts at the edges, and slightly softer image quality in heavy modes. Action cameras lean heavily on EIS — GoPro's HyperSmooth, DJI's RockSteady, Insta360's FlowState are all EIS implementations.

4. Mechanical gimbals — outside the camera

A gimbal physically holds the camera and uses motors on three axes to keep it pointing where you set it, regardless of what your arm is doing. Mechanical gimbals are the only system that genuinely produces "floating" footage — the camera doesn't move relative to the scene at all. They are also bulky, need their own batteries, and add another piece of kit to balance and configure. Pocket gimbal cameras like the DJI Osmo Pocket 3 integrate the gimbal into the camera body.

What each system actually fixes

A useful way to think about this: motion comes in three frequency bands, and different systems own different bands.

  • High-frequency tremor (small, fast — caused by your hand, breathing, the camera button). Fixed by OIS and IBIS.
  • Medium-frequency motion (rolling, tilting your wrist as you turn). Best fixed by IBIS, partially by OIS and EIS.
  • Low-frequency walking motion (the up-down step bobbing, the side-to-side sway). Only fixed properly by EIS at heavy settings, or by a mechanical gimbal.

The reason a handheld camera with strong IBIS still looks shaky on a walking shot is that IBIS owns the wrong frequency band. The big walking motion is too slow and too large for the sensor's mechanical correction range. That's why "Active" or "Boost" modes — which engage EIS on top of IBIS — make walking shots dramatically better but crop in further.

How the systems combine

Two big combinations are worth understanding:

OIS + IBIS — "Sync IS"

When a stabilised lens is mounted on an IBIS body, the two systems coordinate (Sony Active SteadyShot, Canon Coordinated IS, Nikon Synchro VR). The lens handles small high-frequency motion, the body handles roll and larger pitch/yaw. The result is noticeably smoother than either alone. This is why an unstabilised but otherwise excellent prime sometimes looks shakier on video than a stabilised zoom on the same body. Lens choice and IBIS are not independent — see the lenses for vlogging guide for the full picture.

IBIS + EIS — "Active stabilisation"

The big mode-name menu items ("Active", "Boost", "Super Steady") almost always mean "IBIS plus an aggressive EIS crop". They produce the smoothest in-camera footage available, at the cost of a tighter field of view and a slightly degraded image. For walking handheld vlogs, the trade is usually worth it. For tripod-mounted talking-head shots, leaving Active mode off preserves the wider lens framing.

When a mechanical gimbal still wins

In-camera stabilisation has improved to the point where most vloggers don't carry a separate handheld gimbal anymore. There are three scenarios where one still earns its place:

  • Long focal lengths. EIS and IBIS struggle as focal length increases — they correct fewer angular degrees of shake. A gimbal handles tighter lenses cleanly.
  • Action shots: running, fast pans. The motion exceeds the IBIS+EIS correction envelope. A gimbal smooths what software can't.
  • Built-in pocket gimbal cameras. The Pocket 3 isn't a "gimbal accessory" — it's a camera whose whole concept is the integrated gimbal. For travel and run-and-gun vlogging, that integration removes most of the friction of a separate rig.

What about drones?

Camera drones use a 3-axis mechanical gimbal between the airframe and the camera. That's why drone footage looks effortlessly smooth — the camera is mechanically isolated from the drone's tilting and rolling in flight. The drone's flight controller handles position; the gimbal handles orientation. The same logic applies to FPV drones with stabilised footage like the DJI Avata 2: even though the airframe rolls and pitches aggressively, the gimballed camera stays pointed. See the drones shortlist and drone regulations guide for the picking and the law respectively.

Common stabilisation mistakes

  • Leaving Active mode on for tripod shots. Active modes assume motion they need to fight; on a perfectly still tripod they can introduce subtle drifting and jitter at the edges of the frame.
  • Forgetting that EIS crops in. A 24mm lens becomes a 28–30mm equivalent in heavy EIS mode. If you bought the wide prime specifically for self-shooting, you may need a wider one once EIS engages.
  • Walking heel-first. The biggest single trick for handheld walking shots costs nothing: walk gently, ball of foot first, knees softer than normal. This alone halves the motion the camera has to correct.
  • Expecting post-production stabilisation to fix everything. Premiere Warp Stabilizer, DaVinci stabilisation, Gyroflow with camera gyro data — all useful, all introduce warping artefacts on heavy material. In-camera stabilisation, applied correctly, gives cleaner results.
  • Using a stabilised lens's mode that conflicts with IBIS. A handful of older stabilised lenses fight IBIS rather than coordinate with it. Check the manufacturer's "in-body / in-lens" compatibility note for your specific combination.

Decision criteria, summarised

  1. Shooting on a tripod or seated? IBIS or OIS, no EIS.
  2. Walking handheld with a wide lens? IBIS + EIS (Active mode), wider native focal length to compensate for the crop.
  3. Long focal lengths or aggressive movement? Mechanical gimbal.
  4. Wanting the smallest, simplest run-and-gun rig? A built-in-gimbal camera like the Pocket 3.
  5. Aerial work? Drone-integrated gimbal, no other stabilisation needed.

Where this slots into a finished kit

Stabilisation is one of three quiet upgrades — alongside audio and lens choice — that disproportionately determine whether finished vlogs feel professional. For body recommendations the cameras shortlist is the starting point; the comparison table notes IBIS presence directly. And for the storage side of the equation, see the memory cards for video guide — high-bitrate stabilised modes specifically demand cards above the entry tier.