Telescope Accessories
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AUD $39.00Backorder Available
Fine-tune your imaging train's back-focus distance with this 11-piece M42 stainless steel spacer ring set, featuring thicknesses from 0.02 mm to 1.0 mm. Combine multiple shims to achieve precise spacing adjustments down to hundredths of a millimetre—essential for eliminating star elongation and field curvature when using field flatteners, coma correctors, and reducers. Durable 304 stainless steel construction ensures each ring stays flat and rigid for years of reliable use.
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AUD $39.00
Backorder Available
M48 11-Piece Stainless Steel Spacing Shim Set for precision back-focus adjustment in astrophotography. Includes shims ranging from 0.02mm to 1.0mm thickness, allowing fine-tuned spacing between your telescope and camera for optimal image quality.
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AUD $59.00Backorder Available
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AUD $1,129.00
Backorder Available
Get better views from your telescope with the saxon Cielo HD 1.25" ED Eyepieces. Premium six-element fully multi-coated eyepieces with extra-low dispersion glass, these eyepieces promise excellent, clear, well-corrected images for any astronomy viewing.
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Why buy from Sirius Optics
Queensland's largest telescope showroom and warehouse
Run by astronomers and nature lovers, not sales people
Expert advice and lessons
Secure checkout with multiple payment options
30 day returns (T&Cs apply)
