Very good anti-reflection inside, so there is no internal reflections. helicoid is very solid, no wiggle or slop, and movement is very smooth. very high quality product.
M42 to M42 Manual Focus Helicoid Extension Tubes
Price range: $39.72 through $50.08
Pay now, in 4 interest-free payments of $9.93, or over 3–6 months
4 interest-free payments of $9.93
Manual focus M42 helicoid extension tubes designed for lenses without focusing rings. Made of durable aluminum alloy, available in various extension lengths for macro shooting.
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Estimated Delivery Time3–7 business days
Precision Manual Focusing for M42 Lenses
Designed for lenses lacking a focusing ring, this M42 helicoid extension tube provides precise manual focus control. Its threaded design ensures smooth adjustments for sharp images.
Because there are no electronic components, users manually control aperture and focusing, offering full mechanical reliability and versatility.
Versatile Extension Lengths for Macro Photography
Available in multiple adjustable length ranges, these tubes extend your lens-to-sensor distance effectively enabling macro or close-up photography.
Each length option provides specific focusing travel: 12-17mm (5mm travel), 17-31mm (14mm), 25-55mm (30mm), and 35-90mm (55mm) for precise focusing at varying magnifications.
Durable Aluminum Alloy Construction
Constructed from quality aluminum alloy, the extension tube is lightweight yet sturdy to withstand regular use and ensure long-lasting performance.
Its high-quality finish protects against wear and maintains aesthetic appeal over time.
Compatibility and Usage
Fits front and rear M42 screw mounts for a secure, stable connection between camera body and lens.
Ideal for photographers seeking a manual focusing macro extension solution for M42 mount lenses without built-in focusing rings.
Key Specifications
- Mount Type: M42 screw mount male to female
- Lengths Available: 12-17mm, 17-31mm, 25-55mm, 35-90mm
- Focus: Manual only
- Material: Aluminum alloy
- No electronic parts included
What's in the box
- 1 x M42 Manual Focus Helicoid Extension Tube
Product FAQ
Frequently asked questions
01 What is the function of this M42 helicoid extension tube?
It serves as a manual focus adapter and macro extension tube for lenses without a focusing ring.
02 Does this adapter have electronic contacts?
No, it is fully manual with no electronic elements; aperture and focus are manually controlled.
03 What materials are used in this extension tube?
It is made from durable aluminum alloy.
04 What are the available length options for these extension tubes?
Lengths vary including 12-17mm, 17-31mm, 25-55mm, and 35-90mm options.
05 How much manual focusing movement does each length provide?
12-17mm length offers 5mm, 17-31mm offers 14mm, 25-55mm offers 30mm, and 35-90mm offers 55mm travel for focusing.
06 Is this extension tube compatible with all M42 mount lenses?
It is designed for lenses with M42 screw mounts but only for those without focusing rings.
07 Can this adapter be used for macro photography?
Yes, it functions as a macro extension tube to enable closer focusing distances.
08 What is included in the package?
The package includes one focusing helicoid extension tube; camera and lenses are not included.
09 What brand manufactures this product?
It is made by the brand m1zeng.
10 Where is this product made?
This product is manufactured in Mainland China.
Discussion
5.0
Based on 3 reviews
Good quality, no issues.
Perfectly built device. Not cheap but really fine.
