Short for ‘in-body image stabilisation’ and a term used by Fujifilm for its X-H1 pro mirrorless camera. In-body image stabilisers shift the camera sensor to counteract any camera movement during the exposure. It’s the first time Fujifilm has used in-body stabilisation, but it’s already used by Pentax, Panasonic, Sony and Olympus.
Nikon’s name for its image stabilisation technology, as built into its DSLR lenses. Tiny gyroscopic sensors detect any camera movement during the exposure and instantly shift a group of internal lens elements to compensate and keep the image steady on the sensor.
A shutter speed fast enough to prevent camera shake during the exposure. Normally, it’s a second divided by the effective focal length of the lens, so for a 60mm lens a shutter speed of 1/60sec should be ‘safe’. The advent of image stabilisers, however, has made it possible to get sharp handheld shots at much slower shutter speeds.
Image stabiliser which moves physical elements within the lens, or the sensor itself, to keep the image steady during the exposure. This is superior to ‘digital stabilizers’ which use image processing techniques to reduce blur, but which also lead to a loss in quality.