SLR Camera - PRAKTICA BX20 aus GDR - PENTACON Dresden Spiegelreflexkamera mit Objektiv PRAKTIKAR 1:1.8 / f=50mm MC - Camera löst aus ## Technik ok - by LLL ###

Product Information

E/G=elements/groups, NFD=nearest focus distance [m], FT=filter thread diameter [mm], GA=greatest aperture, B=number of blades, YoP=years of production At first nine prime lenses were available for the new lens mount. They were produced by VEB Pentacon (in particular: VEB Feinoptisches Werk Görlitz, incorporated in Pentacon) and VEB Carl Zeiss Jena. It suggests itself that the lens design of the previous M42-lenses was taken and only the lens mount and the appearance were remade, but that is not entirely true: the Prakticar 2.8/28 e.g. is a redesigned Pentacon 2.8/29, and other redesigned and completely new designed lenses followed. By and by the line-up of lenses increased, also with the support of Japanese and Korean companies. That assistance was necessary to offer zoom lenses, which became more and more popular in those days. Both, Pentacon and CZJ weren't able to produce them in the early 1980ies. Praktiker βρίσκονταισχεδόνσεκάθεγωνιά τηςΕλλάδαςκαιαπό το 1991 καταγράφειμιαλαμπρή πορεία. Αποτελεί μια one-stop-shop αλυσίδακαταστημάτωνπουκαλύπτουνκάθεανάγκητουσπιτιού καιτουκήπου. Ένακατάστηματηςγνωστήςεταιρίαςβρίσκεταιδίπλασας, σεπόλεις όπως Ελληνικό, Μεταμόρφωση, Ταύρος, Λάρισα, Παλαιό Φάληρο και Νέα Αλικαρνασσός. Εκεί υπάρχουνδιαθέσιμαχιλιάδεςπροϊόντααπό τηνκατηγορία Σπίτι & Κήποςκαιμπορεί κανείςναβρει έξυπνεςιδέεςγιατοπωςνααλλάξειτηδιακόσμησηκαιτηναισθητική τουκήπουκαιτουσπιτιού του. Praktica B cameras (by Schneider) were sold at least until the year 2000, as well as lenses branded with "Meyer-Optik", though the company was closed already in 1991. It is said, that at the end most of the lenses were made by IOR in Romania, like the 2.4/50, but it remains unexplained. In 1985 the VEB Pentacon was incorporated into the VEB Carl Zeiss Jena, which led to the fact that some lenses produced by Pentacon were labeled with "Carl Zeiss Jena P". With the German reunification in 1990 the situation changed completely. The VEB CZJ was transformed into a GmbH (Ltd. company) and ceased the production of Prakticar lenses, and Pentacon was liquidated. A camera producing part of Pentacon was taken over by Schneider and named "Jos. Schneider Feinwerktechnik GmbH & Co. KG", they produced the Praktica B-series until 2001. The lens producing part, that means VEB Feinoptisches Werk Görlitz, restarted as "Feinoptisches Werk Görlitz GmbH", now an independent company. Their lenses are labeled with "Meyer-Optik Made in Germany". It turned out, that Meyer was not competitive, so it was closed already in 1991.

All lenses bear a red Prakticar name, and were also available with M42-mount. The country of manufacture is not specified. After the German reunification, when the company became independent again, the lenses were branded with "Meyer-Optik" instead of "Pentacon". The 24 Praktiker stores in Poland were sold to Papag AG in March 2014. [ citation needed] However the group was declared bankrupted in 2017, and all the stores were closed, [17] part of the former Praktiker stores are now part of the Castorama network detained by Kingfisher. However, there exist Prakticar labeled lenses with Sigma YS-mount, but that mount was already obsolete when the PB-mount was introduced. In the early 1990ies, when Carl Zeiss Jena as well as Feinoptisches Werk Görlitz didn't provided lenses for the Praktica B anymore, Samyang from Korea was found as subsequent producer. It is supposable, that the manufacturer of the camera bodies, Jos. Schneider Feinwerktechnik GmbH & Co KG, made that decision.When the identification of the lens is written like, e.g. "1:1.4 f=50mm" it is located on the ring around the front lens. If it is like "1.4/50" it is written on the lens barrel from outside, or, in case of the mirror lens, on the attachment in the center of the front lens.

P.S.:The supervisor suggested to go to Agia Varvara Praktiker (they had the product there), which was a joke to use unknown public transportation for a far distance spot, under the increasing heat . The 19 Hungarian Praktiker stores were sold to Papag AG in January 2015, [10] and again to Wallis Group in January 2016. [11] In Moldova, the company had planned to open a store in 2009 in Chişinău, but it was canceled later. In Albania, the first store was opened on October 30, 2009 in Tirana. It was closed on November 30, 2011 due to the restructuring. In Ukraine, the first store was opened on November 29, 2007 in Donetsk, three more opened in Lviv, Mykolaiv and Kyiv. The stores were sold on February 11, 2014 to Ukrainian investor Kreston Guarantee Group. [ citation needed]In the middle of the 1980ies the appearance of the lenses changed, metal parts like the f-stop ring were replaced by plastic parts, also the rubberization of the focus ring was dropped; the new versions were called "ratio". On some lenses also the nearest focus distance changed.