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THREE PRECISE THICKNESSES FOR FINE FOCUS ADJUSTMENT Includes 0.5mm, 0.8mm, and 1.0mm spacer rings to help calibrate focus distance and improve sharpness for planetary and deep-sky observation.
STANDARD M42 THREAD COMPATIBILITY Inner and outer threads follow the M42x0.75 standard, compatible with mainstream telescopes and M42 thread accessories. Easy installation, no tools required.
PRECISION-MACHINED ALUMINUM CNC-machined from high-quality aluminum with black anodized finish. Effectively reduces stray light interference for clearer imaging.
ULTRA-THIN LIGHTWEIGHT DESIGN Individual rings as thin as 0.5mm, stackable without affecting equipment balance. Includes storage pouch for convenient outdoor carrying and organization.
PRACTICAL ASTROPHOTOGRAPHY ACCESSORY Ideal for visual observation and deep-sky photography, enabling fine adjustment of focus distance. A useful addition to any astronomy enthusiast's accessory kit.
Product Description
Specifications Product Name: M42 Telescope Spacer Shim SetSet Quantity: 3 Shims per SetThickness Options: 0.5mm / 0.8mm / 1.0mm (one of each per set)Thread Specification: M42 x 0.75 (Male and Female Threads on Both Ends)Material: AL6061 AluminumSurface Finish: Black AnodizedManufacturing Process: CNC Precision MachinedWeight per Shim: Approx. 5gPackage Contents: 1 × 0.5mm Shim + 1 × 0.8mm Shim + 1 × 1.0mm Shim
