Term - Aperture ring
|Aperture ring||SWPP and BPPA Photographic Glossary|
Friday 7th March 2014
A ring located on the outside of the lens usually behind the focusing ring, which is linked mechanically to the diaphragm to control the size of the aperture.
Information provided by: SWPP BPPA
SWPP & BPPA, 6 Bath St, Rhyl, LL18 3EB