This M42 mount 17-31mm focusing helicoid is designed for M42 42mm lens. It is very useful for macro photography
made with light-weight aluminum alloy
the length of this Helicoid tube 17mm (min) to 31mm (max), it offers a total of 14mm movement distance for lens focusing.
you may need an additional 39mm-42mm adapter if uou want to use 39mm enlarge lens with this Helicoid tube.
- Made of light-weight aluminum alloy
- Male thread: 42mm; female thread: 42mm
- The Length of this Helicoid Tube 17mm(Min), 31mm(Max), it offers a total of 14mm Movement Distance for Lens Focusing.
- Work with M42 screw mount lenses, such as Carl Zeiss, Pentax takumer lens. If you want to use 39mm enlarger lens with this focusing helicoid, you need an additional 39mm-42mm adapter
- Very useful for lenses without focus ring. It could be used as macro barrel, and offers fine focus control for macro photography
- Made of light-weight aluminum alloy
- Male thread: 42mm; female thread: 42mm
- The Length of this Helicoid Tube 17mm(Min), 31mm(Max), it offers a total of 14mm Movement Distance for Lens Focusing.
- Work with M42 screw mount lenses, such as Carl Zeiss, Pentax takumer lens. If you want to use 39mm enlarger lens with this focusing helicoid, you need an additional 39mm-42mm adapter
- Very useful for lenses without focus ring. It could be used as macro barrel, and offers fine focus control for macro photography
