Difference between revisions of "Cable release"
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| − | A '''cable release''' is an attachment that screws into a shutter release, allowing you to trip the shutter mechanically while being isolated from the camera - to reduce [[camera shake]] or to operate the camera from a distance. A cable release is especially useful for long exposures with the camera mounted on a [[tripod]]. | + | A '''cable release''' is an attachment that screws into a socket on a shutter release, allowing you to trip the shutter mechanically while being isolated from the camera - to reduce [[camera shake]] or to operate the camera from a distance. A cable release is especially useful for long exposures with the camera mounted on a [[tripod]]. |
| − | Most cable releases consist of a flexible tube | + | Most cable releases consist of a Bowden cable<ref>[http://en.wikipedia.org/wiki/Bowden_cable Bowden cable] at [http://en.wikipedia.org/ Wikipedia]</ref>: a flexible tube made from a spiral of metal wire covered in rubber or plastic, sometimes with a fabric outer sleeve. A steel cable runs through the tube, from a press-button at one end to a piston to press the release at the camera end. Some have an additional lock, to hold the shutter open for long time-exposures. A longer cable release may be an empty tube, the piston operated by air pressure from a rubber bulb squeezed by hand; this avoids the excessive effort due to friction that a long mechanical release would entail. |
The cable release has largely been replaced by electronic remote releases, which are more suited to electronic cameras, commonly operated wirelessly and communicating using infra-red light. | The cable release has largely been replaced by electronic remote releases, which are more suited to electronic cameras, commonly operated wirelessly and communicating using infra-red light. | ||
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| + | ==Notes== | ||
| + | <references /> | ||
{{glossary}} | {{glossary}} | ||
Revision as of 12:31, 17 February 2011
A cable release is an attachment that screws into a socket on a shutter release, allowing you to trip the shutter mechanically while being isolated from the camera - to reduce camera shake or to operate the camera from a distance. A cable release is especially useful for long exposures with the camera mounted on a tripod.
Most cable releases consist of a Bowden cable[1]: a flexible tube made from a spiral of metal wire covered in rubber or plastic, sometimes with a fabric outer sleeve. A steel cable runs through the tube, from a press-button at one end to a piston to press the release at the camera end. Some have an additional lock, to hold the shutter open for long time-exposures. A longer cable release may be an empty tube, the piston operated by air pressure from a rubber bulb squeezed by hand; this avoids the excessive effort due to friction that a long mechanical release would entail.
The cable release has largely been replaced by electronic remote releases, which are more suited to electronic cameras, commonly operated wirelessly and communicating using infra-red light.
