Double Helical Focuser For Telescopes 0.05mm Scale And 10mm Stroke 1.25 Inch Guide Scope Focuser High Precision Astronomy Accessory With Fixed Orientation For Stable Finders And Cameras
✔️ 0.05mm precision, 10mm stroke, 1.25in (31.75mm) interface
This fixed-orientation double helical focuser is a precision accessory for guide scopes and finders on telescopes, designed to keep cameras or eyepieces from rotating as you focus.
✅ 0.05mm focusing accuracy
✅ 10mm stroke (0.39in)
✅ 1.25in interface with M42x0.75 thread
✅ Fixed orientation to keep field of view steady
✅ Full-metal construction for durability
✅ Includes adapters for M31X0.5 and M42x0.75 threads
💡 What is a double helix focuser used for in astronomy gear? This handy device helps with precise micro-adjustments for guiding and fine focus, while keeping orientation stable. - Precise micro-adjustment for guiding and fine focus - Keeps orientation stable to prevent image shift during focusing - Works with 1.25in accessories and M42x0.75/M31 threads
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