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Checkout our useful upgrades for Newtonian telescopes from Skywatcher & Co.
Especially the CNC-milled secondary spiders provide exceptional stability, both mechanically and in terms of collimation properties, and produce perfect star spikes. An upgrade that many of our customers have described as the "best investment for the telescope".
Due to high-precision manufacturing on modern CNC milling machines, the struts of the secondary mirror spiders have a perfect edges and are precisely aligned, resulting in diffraction effects close to the theoretical optimum. In combination with the matte surface of the secondary spiders which are made of aluminum 6061 (EN AW6061), the results are razor-sharp and fine spikes.
The CNC machined mirror masks can be eliminate disturbing diffraction effects which come from mirror holders as well as errors caused by the grinding process of the main mirror (e.g. a falling edge). A perfekt match!!!