On the other hand the self-erecting feature and the plastic advance knob are typically found on folding cameras made after 1945. This camera also has two ruby windows on the back, indicating an option of getting sixteen frames from a roll of 120 film. However, my camera did not come with the half-frame mask which would enable that choice. The Bentzin looks like it was little used, including a faultless bellows and no Zeiss bumps in the covering.
Being a Friday morning, the old guys and their restored classic cars were available in the Plaza Vieja to help with camera testing.
I remembered that the Rada rollfilm adapter for my Bentzin plate camera came to me with a thin cardboard mask for half-frame images. It does not quite fit in the Bentzin folder, but it would be just a few moments work to cut one to fit.







