Mention IBIS, and some of you may think of the French budget hotel chain of the same name; others may think of the heron-like wading bird. Photographers, however, think of In Body Image Stabilisation, which works by physically moving the sensor within the camera to counteract any movement created by the photographer. This then enables longer shutter speeds when hand-holding the camera.
Although it is often described as a new innovation, every Pentax DSLR that I have ever owned had IBIS (they call it Shake Reduction) – which works using built-in gyroscopes to provide stabilisation across the 5 axis: Yaw (left & right twist), Roll (back and forth rotation), Pitch (side to side rotation), Horizontal (side to side) and Vertical (up and down).
The Olympus OM-D E-M1 Mark iii also has IBIS, which provides up to 7.5 EV of shutter speed compensation when combined with an image-stabilised lens, such as the Olympus M.Zuiko ED 12-100mm f/4 IS PRO. I put this to the test last night when I attended the annual Christmas lights switch-on at nearby Ironbridge town in Shropshire.




To be honest, I wouldn’t usually take any photographs at such events, mainly due to the need to use either a tripod or a flash gun, but this was an opportunity to try the camera hand-held in some pretty testing light conditions, and it didn’t let me down.





Footnote: The Olympus OM-D E-M1 Mark iii also puts the IBIS technology to another use: ‘High Res Shots‘, but I’ll cover that in a later blog post. You can find out when if you subscribe:




































