M42 to M39 12mm-19mm Adjustable Focus Helicoid Adapter Macro Mount Tube Ring for M39 Mount Cameras and M42 Mount Lenses
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Specifications
- Brand Name
- NONE
- High-concerned chemical
- None
- Origin
- Mainland China
- Model Number
- C03174
- Compatible Brand
- Canon
- Focus Type
- Auto Focus
- Lens Adapters Type
- Lens Adapters
- Video Auto Focus
- No
Product Description
Package Included:
1 x M42-M39 12-19mm Focus Adjustable Helicoid Adapter
Product Description:
This focusing Helicoid tube is made with standard M42 mount and M39 Mount. This adapter made with Copper core, high quality and stable.
The length of this Helicoid tube 12mm (min) to 19mm (max).
Independent product assembly, There will be 1 to 2mm deviation.
This Helicoid tube is useful for those lenses without focus ring, It could be used as Macro barrel and offers fine focus control for macro photography.
Made of Anodized Aluminum in Black finish with high quality.
It will be better when you use it with filter adapter together.
Warranty: 1 Year
Install:
Firstly attach your M42 lens to this tube. then attach the lens and helicoid tube together to your M42 camera.
Suitable For:
Lens:
M42 mount lenses
Cameras:
M39 mount cameras
Pros & Cons
Pros
- Adjustable helicoid design enables precise macro focus adjustments between 12mm and 19mm
- Copper core construction ensures stable, long-lasting performance without warping
- Standard M42 and M39 mounts offer broad compatibility with legacy lenses and cameras
- Compact, lightweight design for easy transport and quick camera setup
Cons
- Does not support auto focus, all focus adjustments must be done manually
- Only compatible with M42 mount lenses and M39 mount cameras, limiting cross-mount use
- No included instructions or mounting hardware, requiring additional tools for setup
- Minor manual measurement deviations may cause slight focus inconsistencies
Common Questions
What material is this lens adapter made of?
This adapter has a copper core and high-quality construction for stable, durable performance.
What is the adjustable focus range of this helicoid adapter?
The helicoid tube adjusts from a minimum 12mm length to a maximum 19mm length for flexible macro focusing.
What camera and lens mounts is this adapter compatible with?
It connects M42 mount lenses to M39 mount cameras, and is compatible with Canon brand cameras as noted in the specs.
What type of photography is this adapter best suited for?
It is optimized for macro photography, allowing precise manual focus adjustments for close-up shots.
What is included per order lot, and where is this adapter manufactured?
Each order includes 1 M42-M39 adjustable focus helicoid adapter, and it is produced in Mainland China.
Product information last updated on December 5, 2025