Magnification: 2X
Lens Material: Optical glass
Number of Lenses: 1 element
Lens Coating: FMC – Green coating
Barrel Material: Aluminum alloy
Interface Size: 1.25 inches (approx. 31.7 mm)
Photography Thread: Supports connection to adapters with T2 (M42×0.75 mm) thread and M35×1 mm thread
Extension Length for Photography: 22 mm extension with M35 mount; 32 mm extension with M42 mount
Anti-slip Design: Inward-sloping anti-slip and anti-jam design