Emil Wünsche Photo-Jumelle
Emil Wünsche's Detectiv-Camera "Photo-Jumelle" was a folding variant of the popular Photo-Jumelle concept. Photo-Jumelles were cameras which were built into a binoculars-like housing. Wünsche's variant was to create a special 9x12cm plate folder with the leather case of Krim field glasses as body.
The camera had a 90 degrees turnable viewfinder, a shutter with selectable speeds, and an Extrarapid-Aplanat lens with fixed aperture.