A common tripod feature that provides extra height without making the model much larger to carry. As this is a single column it can make the camera support unstable with increased vibration noticeable. Try to avoid using this where possible and always increase the leg length to gain height first before resorting to the centre column. Centre columns that have a crank handle and a geared control or those with pneumatic-dampening make it easier for you to accurately control the height adjustment.ephotozine
Term used to describe an automatic exposure system that uses just the centre portion of the image to adjust the overall value. So in effect, the exposure will be weighted to what you see towards the centre of your viewfinder.
AKA: C.I.F.E.J., CIFEJ, International Centre of Films for Children and Young PeopleA 40-year-old international non-governmental organization whose goal is to promote quality films, television programmes and videos for children and young people around the world.On the web: http://www.cifej.com