Made by Dipl.-Ing. Wulf H. Köhler of Oceanoptics, , Darmstadt, Germany.

Orange colored aluminum underwater housing for SL 66 with dome glass for either 30 and 40mm, 80mm or  120 and 150mm lenses.

Next to the pictured UW lamp, there was an underwater housing with a Rollei E36RE flash unit available.

The UW housing and accessories were made available from 1974.