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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.

ONLY £47.50

Meade Erecting Prism For ETX 70/80 #933


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.

ONLY £47.50

Meade ETX Erecting Prism 45 Degree #932


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.

ONLY £49.99

Altair Astro 2'' Mirror Star Diagonal


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.

ONLY £49.99

Altair Astro 2'' SCT Fit Mirror Diagonal


Antares 92% Enhanced 2" SCT Fitting diagonal.

ONLY £54.99

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


The Bresser Messier 2" Mirror Diagonal - 93% Transmission is very good diagonal mirror for refracting and Cassegrain telescopes with 2" focusers (and for the Explore Scientific and Bresser Messier telescopes with 2.5"- HEX focusers).

ONLY £58.00

Bresser Messier 2'' Mirror Diagonal


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.

ONLY £59.00

Skywatcher 90 Star Diagonal 2''


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.

ONLY £65.00

Altair 1.25'' Lightwave Premium Dielectric Diagonal


High quality 2" dielectric diagonal with 2" - 1.25" reducer. Brand new but no box is inlcuded as this has been split from an Evostar 80 ED DS kit.

ONLY £70.00

Skywatcher 2'' Dielectric 90 Diagonal Split From Evostar 80 ED Kit


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).

ONLY £71.00  -  £99.50

Skywatcher Deluxe Dielectric Mirror Diagonals

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