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Diagonals

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This 45-degree viewing angle image erecting diagonal has a knurled ring that threads onto the Cassegrain focus at the rear of Meade ETX60, 70 and 80 refractors only.

Meade Erecting Prism For ETX 70/80 #933

ONLY £46.00

All ETX telescopes include an internal, flat mirror to reflect light to the telescope's 90-degree astronomical observing position; in this position the telescope's image is right side up, but reversed.

Meade ETX Erecting Prism 45 Degree #932

ONLY £48.00

Altair 2" star diagonal mirror with a 90 viewing angle allows you to comfortably view objects at a high angle in the sky, producing an upright but mirror reversed image.

Altair Astro 2'' Mirror Star Diagonal

ONLY £49.99

Altair 2" star diagonal mirror with a 90 viewing angle allows you to comfortably view objects at a high angle in the sky, producing an upright but mirror reversed image.

Altair Astro 2'' SCT Fit Mirror Diagonal

ONLY £49.99

Antares 92% Enhanced 2" SCT Fitting diagonal.

Antares 2MDS 2'' SCT Diagonal 92% Enhanced Aluminum

ONLY £54.99

High quality 2" star diagonal. Makes observing at high angles much more comfortable when using Refractor and SCT telescopes. Comes complete with the 2" - 1.25" adaptor so you can use both eyepiece sizes with this diagonal.

Skywatcher 90 Star Diagonal 2''

ONLY £57.00

Another beautiful product exclusively from WO. This 1.25" 90 deg. erecting prism will very happy to be used with that nice premium refractor of yours! Perfect for daytime observations too.

William Optics 90 Erecting Prism 1.25''

ONLY £59.00

A premium dielectric coated diagonal which is small and compact with very high quality machining and a super-hard black anodised chassis. Delivers all the optical and mechanical quality you'd expect from a premium diagonal.

Altair 1.25'' Lightwave Premium Dielectric Diagonal

ONLY £65.00

The Altair-EX Dielectric Diagonal is precision CNC machined with an extremely reflective, accurate and smooth mirror surface for maximum image contrast. Recommended to do justice to telescopes with good quality optics.

Altair 2'' Dielectric Diagonal Push Fit

ONLY £69.99

Available in either 1.25" or 2" sizes the mirrors inside these diagonals have undergone a special high-reflectivity multi-coating process, allowing them to reflect 99% of the precious gathered starlight, providing exceptional brightness and contrast. (Standard diagonals typically reflect 90-95% of light).

Skywatcher Deluxe Dielectric Mirror Diagonals

ONLY £71.00  -  £99.50
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