extension ring

extension ring

or

extension tube

n
(Photography) photog a spacer element that can be fixed between the camera body and the lens to increase the distance between film and lens and allow closer focus than would be possible without it
Mentioned in ?
References in periodicals archive ?
Bowl Extension Ring for XRP 803 mills , atc -2 items
Extension Ring is milled from one piece of aluminum alloy.
The low-profile units with universal mounting and two-wire installation are easy to install on a standard electrical box without an extension ring.
not only gives the employee access to corporate resources, but also gives callers the impression that the remote worker is in the office, because calls to the office phone extension ring immediately at the remote worker's PC
Set phones to ring your current location -- By setting up a "follow me" feature, users can have calls to an extension ring out to any other phone, such as a mobile or even a hotel line.
Tenders are invited for Carrying out time bound programme and changing of worn-out components such as rollers, bullrings, liners, journal assemblies, journal skirts, journal bearings, vane wheel, bowl extension ring, air restriction ring etc.
Tenders are invited for Supply of Bowl Extension Ring for XRP 1043 Bowl Mill.
Tenders are invited for Supply of Bowl Extension Ring for XRP 1043 Bowl Mill As per drawing enclosed Material steel casting IS 1030 Gr B Qty 4 sets
Tenders are invited for NCTPS MI - MPM Unit I Carrying out time bound programme and changing of worn-out components such as rollers, bullrings, liners, journal assemblies, journal skirts, journal bearings, vane wheel, bowl extension ring, air restriction ring etc.
The project is located within the European Quarter GrE-nderzeit extension ring around the city center of Frankfurt close to the main station and runs between the districts Bockenheim and West in the north and the south Gallusviertel.
Extension rings are one solution, but still not as good as the flexibility a rail provides.
Kitagawa-NorthTech also provides custom sensors and extension rings for larger size chucks.