The 71400 Manual Iris Diaphragm is excellent for light attenuation and as a lens aperture stop. A lever on the top of the diaphragm controls the 0.06 to 1 inch (1.5 to 25 mm) aperture range. It has 1.5 Inch Series male and female flanges and a 1/4-20 tapped hole at the bottom.
|Diameter||1.5 in. (38.1 mm)|
|Flange Series Size||1.5 Inch|