About this product
Model: bu_sms_sw200
Part Number: BU2022-003
Backyard Universe Upgraded Secondary Mirror Spider for Sky-Watcher 200mm Newtonian Telescopes.
CNC-milled secondary mirror spider made of matt black anodised aluminium (EN AW-6061), suitable for Skywatcher 200p, 200PDS & 8" Quattro.
This secondary mirror spider is manufactured on a modern CNC machining centre.
The high-precision manufacturing ensures that the 1.8mm thick struts of the spider are perfectly aligned, and the diffraction-related spikes on bright stars appear razor-sharp.
The light, stable design, optimised by FEM simulation, also significantly improves the collimation stability of the Newtonian.
What's In The Box
1 x secondary mirror spider suitable, e.g. for Skywatcher 200PDS (inner tube diameter 233mm), matt black anodised
4 x fastening screws M5x6 (for fastening in the tube)
3 x stainless steel studs M4x25 (with tip) for collimation
3 x studs M4x25 (with conical head) for collimation (black)
1 x stainless steel fastening screw M5x35 for fastening the secondary mirror holder
1 x stainless steel disc 35x15x1.5 (for the optional optimisation of the secondary mirror holder)
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