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New but: TS-Optics 250 mm (10") Newtonian Primary Mirror f/4

373,95 EUR
excl. VAT
excl. 5,03 € Shipping costs
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New but: TS-Optics 250 mm (10") Newtonian Primary Mirror f/4

Very fast parabolic primary mirror for self construction of Newtonian telescopes, made of optical quality glass BK7.

# GSHS250f4 - The mirror is new, but it has minimal astigmatism. However, the mirror still images diffraction limited. Ideal for building a photo Newton or a large field telescope.

♦ Diameter 10" / 250 mm

♦ Focal ratio f/4

♦ Mirror substrate made of homogeneous stress-free optical glass BK7

♦ Reflectivity: 94%

♦ Optical quality: better than diffraction-limited imaging guaranteed

♦ Center marked for collimation


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