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Get it between 2024-12-31 to 2025-01-07. Additional 3 business days for provincial shipping.
The extension tube kit is used to obtain the correct image focal length or exact spacing required, thereby solving the spacing problem in astrophotography. It has an outer diameter of 2 inches and can be connected directly to the 2-inch telescope port.Length: 5mm; 7mm; 15mm; 20mm; 30mm
The M48x0.75 threads on both ends make it versatile. External thread M48 * 0.75; internal thread M48 * 0.75; a series of focusing problems are eliminated.
The required spacing can be achieved by combining several extenders of differing lengths;you can use 1 piece;2 pieces;3 pieces ;4 pieces;5 pieces of the extension rings as you like.
By combining multiple extenders of different lengths, you get the right focal length to focus with the camera or eyepiece.
All metal construction and anodizing aluminium process;durable for long time use.
Specification: Type: Telescope M48 thread Extension Tube Male thread: M48*0.75mm Female thread: M48*0.75mm Length: 5mm 7mm 15mm 20mm 30mm The package contains: 1 x 5mm - M48 thread Extension Tube 1 x 7mm - M48 thread Extension Tube 1 x 15mm - M48 thread Extension Tube 1 x 20mm - M48 thread Extension Tube 1 x 30mm - M48 thread Extension Tube