Ihagee (23)
Ihagee Kamerawerk A.G.Dresden    VEB
     Patent Duplex                                  Duplex                                    Ultrix Duplex 1560                 Duplex Zweiverschluss                   Auto Ultrix (6,3)
         Auto Ultrix (4,5)                          Parvola 1350                            Auto Ultrix 2850                                   Exa                                          Exa 1                 
               Exa 1a                                          Exa 1b                                      Exa II b                                     Exakta II.                               Exakta Varex VX
              Exakta VX II b                          Exakta RTL 1000                               Prakti II.                                 Penti II.                                          Penti I.                                  
            Exa 500                                  Penti I. červ.                                  Exa II.b                                     Exakta vx500                         Exakta vx1000
            Exa 1 a