BGNing M42 to M42 Adjustable Focuse Helicoid Macro Tube Adapter Macro Extension Tube for Macro Photography (25-55mm)

Introduction: This tube useful for lens without focusing ring. And it can be use as macro extension tube. There is no electronic element in the adapter. aperture and focusing must be manually control. Feature: Copper core aluminum body,made of Anodized Aluminum in Black finish with high quality.The length of this Helicoid tube is 25mm (min) to 55mm (max),it offers a total of 30mm movement distance for the lens focusing.You can use M42 screw mount lenses.This Helicoid tube is useful for those lenses without focus ring, Tube offers fine focus control for macro photography.This focusing helicoid tube is made with 42mm front mount and standard 42mm rear mount and is made with light-weight alloy. Compatible With: M42 Lens & Camera Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. packing list: Focusing tube*1

• Copper core aluminum body,made of Anodized Aluminum in Black finish with high quality.
• The length of this Helicoid tube is 25mm (min) to 55mm (max),it offers a total of 30mm movement distance for the lens focusing.
• You can use M42 screw mount lenses.
• This Helicoid tube is useful for those lenses without focus ring, Tube offers fine focus control for macro photography.
• This focusing helicoid tube is made with 42mm front mount and standard 42mm rear mount and is made with light-weight alloy.