Tarjeta adaptadora de latón ligero y Flexible, M42 a M39, 17mm-31mm, longitud Focal, tarjetas de montaje de enfoque, adaptadores de tornillo antideslizantes

Description:
Material: This focusing spiral tube is made of standard M42 mounting lens and M39 mounting camera. The adapter is made of copper core.
Suitability: This spiral tube is suitable for those lenses without a focusing ring. It can be used as a lens tube and provide fine focusing control for macrophotography.
Appearance: The surface of the adapter card is made of anodized aluminum with black finish.
Compatible: The adapter card is better used with the filter adapter.
Installation: First connect your M42 lens to this tube. Then connect the lens and spiral tube to your M39 camera.
Specification:
Material: metal
Color: as shown
Size:Approx.6x6x2 cm/2.36x2.36x0.78 inches.
Package Includes:
1 Piece M42-m39 17-31mm Adjustable Focus Screw Adapter.