8 December 2023
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star diagonal

Equipment

Baader Planetarium flip mirror II Star Diagonal

3 June 2022 Steve Ringwood

This latest flip-mirror star diagonal from Baader Planetarium offers high-quality views for imagers who want to use a guiding eyepiece, as well as a revolutionary third port for off-axis autoguiding, writes Steve Ringwood.

Equipment

Explore Scientific 2″ Push-fit dielectric diagonal

12 March 2016 Steve Ringwood

Steve Ringwood casts his expert eye over and into a 2-inch push-fit dielectric mirror diagonal for refractors and catadioptrics from Explore Scientific. This star diagonal delivers optical fidelity since it has a mirror that has been honed to 1/12th wave and reflects 99 percent of incoming light to the eyepiece.

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News Headlines

  • First colour images from Euclid space telescope get rave reviews
    7 November 2023
  • The Great Square of Pegasus: heralding autumn
    11 September 2023
  • New comet predicted to brighten rapidly as it sprints Sunwards
    18 August 2023
  • NASA picks up faint carrier signal from Voyager 2
    2 August 2023
  • Razor-sharp test images show Euclid’s instruments performing as expected
    31 July 2023
  • Home
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  • Reviews
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  • Spaceflight Now
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    • Ask Astronomy Now
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