Zeiss Ikon Box Tengor 56/2 Filter Type_Polarizing Please note that it is

Please note that it is designed for E mount cameras with APS-C sized sensors

Designed to fit Cokin Z-Pro filter holders

which I guess is one way of describing what it does (it's a 90-degree angle finder)

Too large for contact printing on 8x10 paper

Zeiss Ikon Box Tengor 56/2 Filter Type_Polarizing Please note that it isThe Zeiss Ikon Box Tengor 56 2 is a neat little box camera that shoots 6x9cm images on 120 rollfilm. The lens is a Goerz Frontar Achromat triplet, which is a real lens, not the usual single element meniscus you'd find on most box cameras; its focus can be adjusted with a lever that moves a pair of diopters into position behind the rear element. F stops are adjustable, too, from f9 to f16. The shutter speed is fixed (at about 1 60s) but there's a Bulb