Term - Triple extension
|Triple extension||SWPP and BPPA Photographic Glossary|
Tuesday 11th March 2014
A camera system in which lens image distance can be extended by as much as three times its focal length. It is particularly useful for close up photography.
Information provided by: SWPP BPPA
SWPP & BPPA, 6 Bath St, Rhyl, LL18 3EB