Creates beautiful Biotar style bokeh
out of focus highlights are rendered as beautiful discs(in the right conditions),
making the background swirl slightly.
Helios 44m
Focal length: 58mm
Lens mount: EF mount
Relative aperture: 1:2
Scale of diaphragms: from 2 to 16
Diaphragm: Manual
Focusing range: from 0.5m to 20m to infinity