A colleague and friend of mine had the heart to introduce me to a monster which I eventually got hold of due to his generosity. Now I own this screw monster, traditionally known as "Bokeh-Monster" this lens has been produced and built in the former German Democratic Republic (GDR) in different versions. One of them by Meyer-Optik Görlitz known as Orestor 2.8/135 mm. Other versions were produced by Carl Zeiss Jena, Pentacon and Sigma Japan. Later Pentacon sourced zoom lenses from Cimko and Cosina.
This is one of the older lenses still build to German standards, as one might expect from such a German lens, it is impressively splendid. You could easily use it as a weapon against any mugger without incurring even the slightest bit of damage upon itself.
When this Praktica lens system was launched it was accompanied by different lenses named Prakticar. They were made by different manufacturers as stated above. After German reunification the Carl Zeiss Jena Prakticar lenses production was closed. Then the Korean manufacturer Samyang was chosen, by the new owners Schneider Dresden, to supply Pentacon with zoom lenses.
Meyer-Optik Görlitz was one of the companies fully integrated in the VEB Pentacon works. When the Praktica lens line was created the lenses were no longer badged Meyer-Optik, but "Pentacon Prakticar".
The Pentacon 135 2.8 is a very compact telephoto lens which offered and offers good image quality at a very reasonable price. It was the standard telephoto lens from Pentacon and was at the beginning manufactured extensively in east Germany.
The early version I got is actually based on the Meyer-Optik Görlitz 135 2.8 Orestor. This version often referred to as “king of bookeh”, "booker monster" and alike. It has a 15 blades diaphragm which can close to f/32. This helps the bookeh and the overall performance. The minimum focusing distance is 150mm.
I have seen later build models which have been produced with 9 or even 6 blades diaphragm but no wonder that the first generation feels more solid and balanced. Compared to the later model the focus ring is wider and the aperture is set further up the lens. The first generation had in my opinion not been improved later on.
Here some images I took with my Sony. I'm glad this mirror less cameras came as it gives us a wide range of older lenses to use as well. As it is all manual you have instantly to slow down. think more about composing your image and hopefully get some good results.