The Soligor 180mm f/3.5 is a telephoto manual focus prime lens for 35 mm SLR cameras.
No detailed technical specification for this lens is available - the information is divers and contradictory. According to some sources it has a 15-blade aperture, according to other - a 10-blade. Mine has exactly ten blades. According to some sources it is equipped with the T2 mount only, as manufactured by Tokio Koki (Tokina) , according to other there are also M42 versions by other manufacturers
I've been using the lens with FF cameras for almost a year. It has approved itself a very good portrait lens. With a focal length of 120 mm and a compact size, the lens produces a very contrast image. It has a very "tasty" price on eBay - $ 30-60.