GSO adjustable M48 extension with locking ring (GSO Taiwan, SKU: FF358 / FF359). This metal GSO extension connects a male M48 thread to a female M48 thread. The movable locking ring secures the selected position of the threaded connection. It is used to adjust spacing between astrophotography accessories such as a camera, off-axis guider, field corrector or projection adapter. Maintain sufficient thread engagement when adjusting the spacing.
Key features
• adjustment of the threaded connection position • locking ring to secure the setting • metal construction
Included items
• extension: GSO M48 with locking ring
Technical specifications
• overall length: 16 mm • minimum optical length: 6 mm • travel range: 13 mm • material: metal • male thread: M48 • female thread: M48 • manufacturer: GSO, Taiwan
The extension helps adjust the connection and spacing between components in the imaging train.
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