Symbol 5578 from IEC 60417 - Title/Meaning: Zone focus, short distance Function/description: To identify a short focal distance.
Additional information: 
This symbol is to be used in conjunction with one or more of symbols 5577, 5579 and 5580
Minor editorial improvement agreed by the Change Request was reflected after the release on 2002-10-07
Published in: Supplement M, 1994
Own work using: iso.org/obp/graphics/grs/bed1881c-c6d9-43ed-8e7c-5bcd14505351 200.png
Vectorization:  Mrmw