Product features:
1. There are many adjustable diaphragm blades
2. Smooth aperture, continuous adjustable, easy to use
model
Optical aperture Φ（mm）
Outside diameter Φ（mm）
thickness（mm）
number of blades
material
installation part
Maximum
Minimum
inner ring
outer ring (shell)
WN03ID59
59
9
78
12
20
aluminum
outer ring
