Mount: M42. Focal length: 58mm. Based on the lens Carl Zeiss Biotar 2/58. It has 8 blades diaphragm!
US Seller Helios 44m KMZ 58mm f2 Soviet portrait Lens DSLR M42 Mount Manual CLA
HELIOS-44-2 58mm f/2 KMZ Soviet lens for Sony E-mount
Helios 44-2 58mm f2 KMZ Swirly Bokeh Vintage lens Manual Focus M42 Mount
KMZ HELIOS 44 F2 58mm CINE MOD! Early SILVER 13 blades Biotar Designed "START "
Helios-44-2 KMZ 58mm f/2 Vintage Lens, Nikon Z Adapter
US Seller Helios 44m-4 58mm f2 CLA Old KMZ Soviet portrait Lens DSLR M42 Mount
