Extended dynamic range movie mode introduced by Fujifilm to handle high-contrast lighting, extending dynamic range by 200% or 400%. Other higher-end movie cameras have a similar feature. It produces flat-looking footage but with extended data in the shadow and highlight areas and the idea is that you process the video later on a computer (grading) to achieve the finished look. It’s the video maker’s equivalent of shooting RAW files.
Also known as battery grips, these are accessories that attach to the bottom of some DSLRs or mirrorless cameras to offer extended battery life and, usually, a duplicate set of controls to make the camera suitable for extended use in portrait (vertical) mode. In some cases, a battery grip may also increase the continuous shooting speed of the camera. For example, the battery grip of the Nikon D850 increases its continuous shooting speed from 7fps to 9fps.
An image distortion effect caused by the way camera shutters operate at very high shutter speeds. Beyond a certain speed, focal plane shutters, as used in most interchangeable lens cameras, change the way they work. Instead of exposing the whole sensor at once, they expose it in a narrow strip between two shutter curtains passing very quickly across the sensor. This means that if a subject is moving very rapidly it may take on a skewed or twisted shape. This can be apparent not just in stills photography but in video too.
This also happens with electronic shutters, so that although they offer even higher shutter speeds than mechanical shutters, they too capture image data in ‘strips’, and while they may offer an exposure time of, say, 1/32,000sec, it actually takes considerably longer for this electronic scanning process to complete. This can only be fixed by so-called global shutters, which capture data from the entire sensor area at once.
An advanced kind of electronic shutter that can capture the entire image area at once, instead of scanning it strip by strip. This should eliminate the rolling shutter effect usually associated with electronic shutters and make them much more effective for capturing moving subjects. It does, however, require advanced sensor technology, especially in larger sensor sizes, and powerful image processing, which is why it’s still in its infancy in the mass market.
The traditional form of camera shutter, a physical device which blocks light from the sensor until the moment you press the shutter release, then opens to expose the sensor for the required amount of time before it closes again. Mechanical shutters are either focal plane types, just in front of the sensor, or in-lens ‘leaf’ types.
Electronic shutters offer shorter shutter speeds on paper, but with current technology they’re less effective at capturing fast-moving objects.