Term - Porro prism
|Porro prism||SWPP and BPPA Photographic Glossary|
Sunday 31st August 2014
The conventional shape binoculars where light is bounced through 90 using a series of prisms. The other common type, used by many of the slim pocket style models, is roof prism that allows a straight tubed body.
Information provided by: SWPP BPPA
SWPP & BPPA, 6 Bath St, Rhyl, LL18 3EB