All-metal structure and anodized aluminum process, durable, can be used for a long time.
Use this extension tube to obtain the correct image scale or the exact spacing required for reducing tubes or field flatteners.
The extension tube has M48 internal and M48 external threads and is used to solve spacing problems in astrophotography and eliminate a range of focusing problems.
The required spacing can be achieved by combining several extenders of different lengths.
Type: Astronomical telescope M48*0.75 threaded extension tube Extension tube
Height: 3mm/ 5mm/ 7mm/ 10mm/ 12mm/ 15mm/ 20mm/ 30mm External thread: M48*0.75mm Internal thread: M48*0.75mm External diameter: 2in/ 50.8mm
Color: Black
The package includes:
1 x M48 extension ring
Please note:
This is the M48 (48mm) thread diameter, not the M42 thread diameter
Attention:
Allow an error of 0-2mm due to manual measurement. Make sure you don't mind before you bid.
Due to differences between different monitors, the picture may not reflect the actual color of the item. Thank you!
If you really care about these details, don't order.