These two came with a Linhof 70 and the previous owner, like me, has no idea what they are!
The Technika board is normal 6x9 board size and the raised piece stands 15mm above board height. The opening tapers from 61mm diameter to 56mm at the front. There are no threads. Maybe a microscope adapter? Maybe an extension job but don't see how lens attaches if so?
The silver one is 81mmx74mm and 4.5mm thick. The opening is 61mm diameter and the raised part is 74mm square. It has a lozenge shaped indent top centre and two on the opposite side with a v shaped nick between them.
Any assistance gratefully received.
The Technika board is normal 6x9 board size and the raised piece stands 15mm above board height. The opening tapers from 61mm diameter to 56mm at the front. There are no threads. Maybe a microscope adapter? Maybe an extension job but don't see how lens attaches if so?
The silver one is 81mmx74mm and 4.5mm thick. The opening is 61mm diameter and the raised part is 74mm square. It has a lozenge shaped indent top centre and two on the opposite side with a v shaped nick between them.
Any assistance gratefully received.