Macro Symmar HM 120mm/5.6 Copal #0 Shutter.
It is an 8-element lens computed for 1:1.
This lens can be used for copying flat copy and other material with the highest resolution.
Reductions or enlargements in ratios of 1:2 or 2:1 can be produced without problem.
The ratio range can be extended between 1:4 and 4:1 for normal product photography and for table-top photography, as well as machine vision applications.