ZWO
ZWO M42-M42 Extender
ZWO M42-M42 Extender
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Product Description
The ZWO M42-M42 Extender is a precision-machined spacer designed to achieve accurate back focus in astrophotography imaging systems. It provides a secure extension between M42-threaded components, helping you maintain the correct sensor distance required by field flatteners, focal reducers, and other optical accessories. Manufactured from high-quality CNC-machined aluminium, this extender ensures reliable performance, precise thread alignment, and a rigid connection for sharp, distortion-free astrophotography images.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | ZWO |
| Product Type | M42-M42 Extender |
| Available Lengths | 5mm, 10mm, 15mm, 20mm |
| Thread Type | M42 × 0.75 |
| Thread Configuration | Male to Female |
| Material | CNC-Machined Aluminium |
| Finish | Black Anodized |
| Application | Back Focus Adjustment & Imaging Train Spacing |
| Compatibility | M42-Threaded Cameras, Filter Wheels, Flatteners & Astronomy Accessories |
What's Included in the Box
The package includes one ZWO M42-M42 Extender in your selected length (5mm, 10mm, 15mm, or 20mm). Precision-machined from CNC aluminium, it is designed to provide accurate spacing between M42-threaded components for proper back focus adjustment. The extender comes securely packaged by ZWO and is ready for immediate installation into compatible astrophotography imaging systems.
Why Buy from Sky Deep Co?
Sky Deep Co is Pakistan's trusted partner for astronomy equipment, offering 100% genuine ZWO products backed by manufacturer warranty and expert technical support. As Pakistan's Authorized ZWO Dealer and the Official Learning Partner of the Lahore Astronomical Society, we help beginners and experienced astrophotographers choose the right equipment with confidence. From professional product advice and reliable after-sales support to fast nationwide delivery, Sky Deep Co is committed to delivering an exceptional experience for every astronomy enthusiast.
FAQs
1. What is the ZWO M42-M42 Extender used for?
It provides precise spacing between M42-threaded components to achieve the correct back focus for astrophotography setups.
2. Which thread standard does this extender use?
It features standard M42 × 0.75 threads, making it compatible with a wide range of astronomy cameras and accessories.
3. Can I stack multiple extenders together?
Yes. The male-to-female thread design allows multiple extenders to be combined to achieve the exact spacing required for your imaging train.
4. Does this extender affect image quality?
No. It contains no optical elements and simply provides accurate mechanical spacing without introducing optical distortion.
5. Is the ZWO M42-M42 Extender compatible with non-ZWO equipment?
Yes. It works with any telescope, camera, filter wheel, or accessory that uses the standard M42 × 0.75 thread.
