| Brand | Unbranded |
|---|---|
| Type | Optical Iris |
| Origin | Mainland China |
| Magnification Ratio | 500X & Under |
Check the listing for details. 2-30mm Amplifying Diameter Metal Zoom Adjustable Optical Iris Diaphragm Aperture. Condition: New. Listed at 29.85 USD. Luminous aperture:2-30mm. Material: Shell Aluminum Alloy, Leaves Stainless Steel. Thickness: 6mm.