X-H1 IBIS doesn't improve stabilisation on IS lenses?

Started May 14, 2018 | Discussions thread
Truman Prevatt
Truman Prevatt Forum Pro • Posts: 11,828
Re: X-H1 IBIS doesn't improve stabilisation on IS lenses?

baobob wrote:

yes in does

Most OIS lenses have only a 2 axis IS system in X and Y

IBIS is a 5 axis adding roll pitch and yawl control

That said these 3 axis are more essential for video than for stills giving in still the impression that IBIS does not improve the original OIS

The table posted onlly refers to the gain in stops for all axis concerned

Most lens motion that leads to focus issues is fully expressed in Euler coordinates, yaw, pitch and row. That why gyro directed image stabilization was first develop for the US military in the 1970's.  Also to a first order motion in dx and dy can be approximated in Euler coordinates sufficiently that three axis is sufficient.  This is particularly when the camera with a viewfinder where there is an anchor point for the camera.  Holding a camera at arms length to use the LCD might be different but probably not over a short span.

So I don't think it is any surprise that you don't gain much if anything using IBIS over OIS.  OIS is also going to perform better than IBIS on longer lenses which also factors into the equation.

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Truman
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Fujifilm X-H1 Fujifilm X-Pro3 Fujifilm XF 18mm F2 R Fujifilm XF 35mm F1.4 R Fujifilm XF 55-200mm F3.5-4.8 R LM OIS +12 more
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