ZWO
ZWO M42-M48 Extender (16.5mm)
ZWO M42-M48 Extender (16.5mm)
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Product Description
The ZWO M42-M48 Extender (16.5mm) is a precision-machined adapter designed to connect M42 and M48 threaded astrophotography accessories while adding an accurate 16.5mm of back focus spacing. It helps achieve the correct imaging distance required by field flatteners and focal reducers, ensuring sharp, well-corrected images across the frame. Made from durable CNC-machined aluminium with anodized black finishing, this extender provides a secure and reliable connection for ZWO cameras and other compatible astronomy equipment.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | ZWO |
| Product Type | Thread Extender & Spacer |
| Extension Length | 16.5 mm |
| Thread Side 1 | M42 × 0.75 Male |
| Thread Side 2 | M48 × 0.75 Male |
| Material | CNC-Machined Aluminium |
| Finish | Black Anodized |
| Application | Back Focus Adjustment & Thread Conversion |
| Compatibility | M42 & M48 Threaded Cameras and Astronomy Accessories |
What's Included in the Box
The package includes one ZWO M42-M48 Extender (16.5mm), precision-machined from CNC aluminium to provide accurate spacing and seamless thread conversion between M42 and M48 accessories. It comes securely packaged by ZWO to protect the adapter during storage and transportation, ready for immediate installation in your astrophotography imaging train.
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 build the right imaging setup with confidence. From professional product guidance 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-M48 Extender (16.5mm) used for?
It connects M42 and M48 threaded accessories while adding 16.5mm of precise back focus spacing for astrophotography setups.
2. Does this extender contain any optical glass?
No. It is a solid aluminium spacer with no optical elements, so it does not affect image quality.
3. Is it compatible with non-ZWO equipment?
Yes. It works with any astronomy accessories that use standard M42 × 0.75 and M48 × 0.75 threads.
4. Why is 16.5mm spacing important?
Many imaging systems require precise back focus for field flatteners and focal reducers to produce sharp stars across the entire image.
5. Is this extender suitable for deep-sky astrophotography?
Yes. It is designed for astrophotography imaging trains where accurate spacing and secure threaded connections are essential.
