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Orion Optics UK 250mm f4.8 Standard 1/4pv mirror

Orion Optics UK 250mm F/4.8 Mirror

by Orion Optics UK
SKU OOUK-250MM-F4-8-STANDARD-1
CA$778.00 - CA$1,542.00
CA$778.00
CA$858.00
CA$858.00 - CA$1,622.00
CA$858.00
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  • 250mm aperture, f/4.8
  • Standard grade, 1/4 PV wavefront accuracy
  • Hand-figured in the UK
  • Supplied with a Zygo interferometer test report
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  • Description
  • Specifications
  • In the Box
  • Warranty

  • 250mm f/4.8 Standard Grade Primary Mirror

    A 250mm f/4.8 Newtonian primary mirror hand-figured by Orion Optics UK to Standard grade (1/4 PV wavefront accuracy).

    Wavefront-Accuracy Grading

    Orion Optics UK hand-figures every primary mirror in-house to a wavefront-accuracy grade (Standard 1/4 PV, Professional 1/6 PV, Research 1/8 PV, or Ultra 1/10 PV) -- the smaller the fraction, the more precisely the surface matches a perfect parabola, and the sharper and higher-contrast the resulting image. Supplied with a Zygo interferometer test report.

  • Aperture 250mm
    Focal ratio f/4.8
    Grade Standard
    Wavefront accuracy 1/4 PV

    • 250mm f/4.8 Standard Primary Mirror

      × 1

  • Orion Optics UK 1-Year Warranty