EASY The user can change the diaphragm diameter by the handle, and the diaphragm inner diameter can be adjusted.
METAL MATERIAL: The light diaphragm is made of aluminum alloy and stainless steel for reliable performance and durability.
MICROSCOPE APERTURE: The thread diameter of the diaphragm is M42 to M42, the number of blades is 14, fine workmanship,
COMPACT AND SMALL: The compact and practical design of the diaphragm makes the diaphragm a more practical way to work.
ADJUSTABLE INNER DIAMETER: The diaphragm is adjustable from 1.5 to 26mm, with an outer diameter of 45mm, in an optical system to meet different through lighting requirements.