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Apochromatic Refractor - ED Refractor - less color aberration than an achromatic
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Adaptors - Adapter 1,25" and 24,5mm
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manufacturers
Manufacturer: Backyard Universe
Product number: BU2022-010
EUR369.90new
EUR 369,90
incl. 19 % VAT (DE)
The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.
excl. 6.95 € shipping costs (DE)
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- Details..
- Technical data..
- In the box..
Backyard Universe Secondary Spider SW250
This secondary spider is manufactured on a modern CNC machining center. The high-precision manufacturing ensures that the 1.8 mm thick spider vanes are perfectly aligned and the diffraction-induced spikes on bright stars appear razor-sharp. The lightweight, stable design, optimized by FEM simulation, also significantly improves the collimation stability of the Skywatcher Newtonian.Scope of delivery:
| Fits telescopes: | Skywatcher 250PDS/Quattro |
| Suitable for tubes with inner diameter: | 180 mm |
| Vane thickness: | 1.8 mm |
| Material: | Aluminum alloy EN AW-6061 (AlMg1SiCu/3.3214) |
| Machining: | CNC milled, matt black anodized |
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