Hi folks, I found a Kristall camera in charity shop today with a Stable Tetragon 50mm 2.8 lens. The lens loos like it has around 14 blades on the iris. Does anybody have any info apart from the small amount on the net?
It's a Kristall Standard, rather rare, less than 1000 supposedly made. The lens is probably a lot less rare than the Body, Staeble also made lenses for the Braun Paxette series and other cheap cameras of the period.