New IRIS DIAPHRAGM Aperture blade with M42 x1mm thread casing
item number: 324294448250
Max. aperture diameter: appro 25mm
min. aperture diameter: appro 1mm
the dimension of the outer casing:
outside diameter: appro 54mm
thickness: appro 13mm (w/o the male M42 thread); appro 17mm (w/ the male M42x1mm thread)
Diaphragm blades count: 14
When you close or open the diaphrag, both screws (male and female) remain at the same position