Domiplan - Aus Jena T 2.8 /50mm

As with 1.8/50mm, you can find on the Prakticas 2.8/50mm lenses from Meyer Optik Görlitz or from Carl Zeiss Jena.

Domiplan 2.8 / 50mm, on the Praktica LB 2 bought by Christophe in a secondhand fair in october 2009.

Aus Jena T 2.8 / 50mm, on the Praktica MAT bought by Christophe in a secondhand fair in August 2009.

It's a Tessar which would be simply called "T".