This webpage contains information on the optical and mechanical systems of the WHT main optics.

WHT Main Optics

• Optical layout of the WHT
  Optical layouts and Zemax figures of the Primary, Cassegrain and Nasmyth focal stations at WHT.

• Main mirrors at the WHT
  Optical and mechanical characteristics of the primary, secondary and tertiary mirrors at WHT.

• Foci at the WHT
  Optical characteristics (focal length, focal ratio, field diameter, image scaling) of the WHT foci.

• Vignetting
  Vignetting in the various foci of the WHT.