Extension tube in 2" fitting for telescopes where extra focuser length is required for cameras to achieve focus or for using eyepieces without the diagonal in place, threaded for standard 2" filters.
This 80mm version is CNC machined from aircraft grade aluminium for a precise fit and has a compression ring to accurately centre your 2" camera adaptor or eyepiece without marking the barrel.
These extension tubes are designed for telescopes equipped with 2" focusers only and are ideal for modern short focus refractors when a camera is used at prime focus.
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