Backyard Universe Primary Mirror Mask for Sky-Watcher 150mm Newtonian Telescopes
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Backyard Universe Primary Mirror Mask for Sky-Watcher 150mm Newtonian Telescopes

£45.00
  (1 Review)
✓ 2 year warranty

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7x in stock shipped 1-2 working days
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About this product

Model:  bu_pmm_sw150
Part Number:  BU2022-005

Backyard Universe Primary Mirror Mask for Sky-Watcher 150mm Newtonian Telescopes

CNC milled aperture ring made of matt black anodised aluminium (EN AW-6061), suitable for Skywatcher 150PDS/P/Quattro. 

This precisely manufactured aperture ring, for mounting on the primary mirror, reliably covers the mirror brackets and the outer area of ​​the primary mirror, thus helping to avoid unwanted diffraction effects caused by the brackets and a sloping mirror edge. 

A 2mm chamfer in the inner ring minimises unwanted residual reflections on the primary mirror from the inner edge of the aperture. 

 

Customer reviews

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Perfect 👌
15 November 2024  | 

Firstly, impeccable service and delivery from FLO 👌
This mask fits perfectly and makes collimation much more stable and reliable.
Cannot recommend highly enough 👌

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