ZWO M48 Extension Ring 16.5mm

The ZWO M48 Extension Ring 16.5mm is designed to provide precise back focus adjustment in astrophotography setups. With an optical length of 16.5mm, this extension ring is essential for maintaining proper spacing between your camera, filters, and other optical components. Its high-quality anodized aluminum construction ensures durability and stability during imaging sessions.  

• Extension Type: M48
• Thread Size: M48x0.75
• Optical Length: 16.5mm
• Material: CNC-machined aluminum alloy
• Finish: Black anodized
• Compatibility: ZWO cameras and astrophotography accessories with M48 threads

• ZWO M48 Extension Ring 16.5mm