4 lenticular design Primagon 4,5 / 35mm.
10 blades. Solid construction. Smooth aperture.
Produced in the years 1955-1963.
The father of Meyer Optik Gorlitz Lydith 3.5/30 Lens and grandfather of Pentacon 3.5/30. Grandson grandfather has all the features, but it is cheaper and much easier to use. In addition, thanks to MC coating allows much easier to achieve better results.
From f 4.5 to 8 to soft. From f 11 up looks good. Good colors.
Small very handy. Solidly constructed. Pre-selection aperture. Very precise in use. But for the good outcomes must be earned.
Build quality: ★★★★★
Rugged, lightweight and very easy to use.
Market value / value of subjective: ★★★☆☆
Less than $ 200 is a very good price.