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Night-time
Night-time mode - A program exposure mode that compensates for low light by setting the aperture to maximum. This lets the most available light into the camera and gives you the fastest possible shutter speed available under the circumstances for maximum results in low light conditions. read more…
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Ni-MH
Stands for Nickel-Metal Hydride, a type of rechargeable battery rapidly replacing older Nickel Cadmium (NiCad) batteries. Ni-Mh Batteries do not suffer from the 'memory effect' which was a problem with the older rechargeables not operating a peak efficiency, and they can also store a lot more power. This makes them idea for use in battery-guzzling digital cameras. read more…
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Ni-MH
Ni-MH battery Nickel-Metal Hydride battery. Rechargeable batteries that have an energy density 100% higher than NiCd batteries and can supply high energy levels when required, e.g. when using the flash in quick succession. They can be recharged more than 300 times and are environmentally-friendly (free of cadmium and mercury). Among other devices, Ni-MH batteries are used to power digital cameras. read more…
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Nodal
Nodal point The optimal turning point of the camera is the so called Nodal Point, this is the point of intersection between the optical axes and the main surface of the object. When a beam of light hits in a certain angle on the picture side nodal point, the beam of light will leave the objectside nodal point under the same angle. A good description for this point could also be "optical centre". The nodal point is impotant with taking panorama pictures. read more…
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Noise
Noise A term used in the field of audio engineering to describe interference that can lead to impure sounds and distortion. Noise may occur, for example, as a result of faulty microphones or recording equipment. In digital imaging, noise is a term used to describe the visible effect of interference on the CCD sensor. It appears as unwanted colour spots in an image - especially those taken at night with a slow shutter speed. ( Colour noise ) Noise reduction In... read more…
