What Stabilization Actually Does
Camera shake is the enemy of sharp images. Even at shutter speeds most people consider "safe," subtle micro-movements from holding a camera introduce blur that degrades resolution — especially on high-megapixel sensors. Stabilization systems counteract this by mechanically or optically shifting elements to compensate for movement detected by gyroscope sensors inside the camera or lens.
Modern stabilization is genuinely impressive. Gyros detect movement along five axes (pitch, yaw, roll, X, Y shift), and the best systems can compensate for several stops of camera shake. But not all stabilization is equal, and the interaction between in-body and optical systems is more complex than the spec sheet suggests.
IBIS: The In-Body Advantage
Image Sensor Shift Stabilization (IBIS) moves the sensor itself to counteract shake. Because the sensor is what actually captures light, this approach stabilizes the entire optical path — not just what a lens element sees. IBIS works with any lens you mount, including vintage manual-focus glass that has no stabilization of its own.
Sony's IBIS system, as implemented in bodies like the A7 IV and A7R V, delivers up to 5.5 and 8 stops of compensation respectively (CIPA standard). Canon's RF mount IBIS reaches 8 stops on the R5 and R6 II with compatible lenses. Nikon claims up to 6 stops on the Z6 III. These numbers are measured under controlled conditions and tend to overestimate real-world performance — but even discounting them by a full stop, they're meaningful.
The practical impact in our field testing: the Sony A7R V at 1/30s on a 100mm equivalent lens produced consistently sharp results on a tripod-wary handheld walk — something that would require 1/250s without stabilization. That's roughly a 3-stop real-world gain.
IBIS also enables some cameras to capture pixel-shifted high-resolution images by taking multiple shots and shifting the sensor by half a pixel each time. Sony's Pixel Shift Multi Shooting and Olympus/OM System's handheld version produce 50–200MP files with significantly reduced moiré and better color resolution. This only works with the camera on a tripod and with static subjects.
Lens Stabilization: The Optical Approach
Optical Image Stabilization (OIS) works inside the lens, moving a floating element to compensate for shake detected by a gyro in the lens barrel. Because it's closer to the optical center and reacts faster (the correction happens inside the lens before the light even reaches the sensor), OIS can be more responsive than IBIS for certain types of movement — particularly the high-frequency tremor from a telephoto lens being held at a long extension.
The Canon RF 70–200mm f/2.8L IS USM offers 5 stops of OIS on its own. Combined with an IBIS-enabled body like the R5, the two systems communicate and coordinate via the mount, achieving a combined effect of 8 stops. This coordination between IBIS and OIS is what makes the combined stabilization rating meaningfully different from either system alone.
Where OIS has a structural advantage: telephoto and super-telephoto lenses. The longer the focal length, the worse the camera shake problem. A 600mm lens amplifies hand movement significantly more than a 35mm lens. Canon and Nikon build more aggressive stabilization into their telephoto glass specifically for this reason.
If you're choosing between mirrorless systems for telephoto work, it's worth reading our comparison of mirrorless vs DSLR for bird photography — stabilization is one of several factors that swing differently depending on your primary subjects.
IBIS + OIS: Does Dual Stabilization Stack?
Yes — but not linearly. When both systems are active, they communicate via the lens mount and coordinate their corrections, with each handling different frequency ranges of movement. IBIS handles low-frequency sway; OIS handles higher-frequency shake. The combined effect is meaningfully better than either alone, typically adding 1–2 additional stops beyond what the better individual system achieves.
The caveat: not all manufacturers implement this communication equally well. Canon and Nikon coordinate IBIS + OIS well across native lenses. Sony's native G Master lenses coordinate well with Sony IBIS. When adapting lenses — say, using a Canon EF lens on a Sony body via adapter — the coordination degrades significantly and you often end up with less effective stabilization than either system alone.
One under-discussed issue: the IBIS motor produces a subtle high-frequency vibration. On some Sony bodies, you can feel this when the system is active at slow shutter speeds. It's not audible through the EVF, but it means that at very slow shutter speeds (1/2s–2s), some photographers report sharper results with IBIS turned off and the camera mounted on a solid tripod — because the stabilization motor's own vibration becomes the noise source.
For those slow-shutter scenarios, a good travel tripod becomes essential. We tested and ranked travel tripods under $200 — because no IBIS system replaces a stable platform at 1 second or longer.
No Stabilization: When It's Fine
Not every lens has OIS, and not every body has IBIS. For many use cases, that's genuinely fine.
Wide-angle lenses (below 35mm equivalent) require relatively fast shutter speeds to freeze handheld shake — but because the field of view is wide, the tolerance for camera movement is much higher. A 24mm lens can often produce acceptably sharp results at 1/30s without stabilization. The old rule of "1/focal length" shutter speed (i.e., 1/50s at 50mm) was always conservative; with modern lens resolution, it's more like 1/(focal length × 2) for sharp results on a high-megapixel body.
If you're primarily shooting landscapes on a tripod, street photography with a wide prime, or anything in consistently bright light, stabilization is less critical. Bright light means fast shutter speeds are easy to achieve. The ISO advantage of stabilization (shooting at lower sensitivity while maintaining a "safe" shutter speed) becomes less important when base ISO produces clean images.
Which Camera Systems Lead on Stabilization?
Canon and Sony are currently the IBIS leaders. The Canon R5's 8-stop system and Sony A7R V's 8-stop system are the benchmarks. Olympus/OM System (via OM Digital Solutions) has long claimed the highest CIPA-rated stops — the OM-1 Mark II rates 8.5 stops — though independent testing puts real-world results closer to Canon and Sony at their best.
The tradeoffs between systems — including how they handle adapted lenses — show up in places like our speed boosters for mirrorless cameras guide, where we test how well IBIS coordinates with adapted glass versus native lenses.
If stabilization is a priority purchase consideration, it's worth noting that the Sony APS-C system (A6700, A6600) includes IBIS in the body, which is rare at that tier. Canon doesn't include IBIS in its APS-C bodies. For telephoto wildlife and bird photography, which often involves heavy lenses, the Sony APS-C + IBIS combination is a practical advantage — especially when paired with a lens that also has OIS, as the Sony 200–600mm G OSS does.
The Real-World Recommendation
Prioritize IBIS in the body if you shoot with adapted lenses, primes without OIS, or vintage glass. An in-body system upgrades every lens you own simultaneously. Sony A7 IV or A7R V, Canon R5 or R6 II, Nikon Z6 III or Zf — any of these give you stabilization across your entire lens lineup.
Prioritize OIS in the lens if your primary work is telephoto — wildlife, bird photography, sports. The interaction between lens-based correction and IBIS at long focal lengths is genuinely better than either system alone, and telephoto is where shake is hardest to control.
Don't stress about it if you're primarily a wide-angle shooter in good light. A 24mm or 35mm prime without stabilization on a modern camera body will produce sharp images at shutter speeds most photographers naturally use. Save the premium for lenses that actually need the help.
References
- Canon Inc. "RF 70–200mm f/2.8L IS USM Technical Documentation." Canon.com, 2024.
- Sony Electronics. "Pixel Shift Multi Shooting — Operational Guide." Sony.com, 2025.
- CIPA. "DC-011: Measurement Method for Image Stabilization Performance." CIPA.jp, 2023.