Health & Beauty Product Light Iris Diaphragm 1.5Mm?25Mm Id 55Mm Od M42 To M42 Aperture For Optical System Camera Microscope

Health & Beauty PRODUCT

Iris Diaphragm 1.5mm?25mm ID 55mm OD M42 to M42 Aperture for Optical System Camera Microscope.Feature: 1. 1.5mm to 25mm: The aperture has an outer Diameter of 55mm and an adjustable inner Diameter of 1.5mm to 25mm, which provides small holes with different in the optical system to meet different light transmission requirements. 2. Simple Operation: Just use the handle to change the aperture diaphragm diameter, which is easy to operate and more directly for adjustment. 3. Reliable Materials: The