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The Altair 2" premium diagonal with positive-lock system grips 2" accessories tightly with a small rotation of the top knurled ring, keeping them precisely centred.

ONLY £119.00

Altair 2'' Premium Positive Lock Dielectric 2'' Diagonal Push Fit

Dedicated 1.25" dielectirc mirror diagonal made especially for use with latest Star71 71mm f/4.9 apo imaging refractor telescope. Allows you to use this scope visually with any 1.25" eyepiece.

ONLY £119.00

William Optics Dura Bright 1.25'' Dielectric Diagonal For WO Star 71

Prism diagonals give less scatter and therefore better contrast than diagonals using reflective mirror surfaces, including dielectric ones.

ONLY £125.00

Altair 2'' Positive Lock 90 Prism Diagonal Push Fit

Introducing the new William Optics Dura-Bright diagonal - a dramatic step forward in the evolution of mirror diagonals!

ONLY £135.00

William Optics Dura Bright 2'' Dielectric Diagonal

Upgrade your existing star diagonal with this premium Celestron 1.25" Dielectric Star Diagonal with Twist-lock ensures maximum light transmission without loss of optical quality.

ONLY £139.00

Celestron Dielectric Star Diagonal 1.25'' With Twist Lock

A high grade star diagonal mirror with a very precise mirror surface (approx. 1/12 lambda) for demanding users.

ONLY £142.00

Explore Scientific 2'' ES Push Fit Dielectric Diagonal

Dura Bright 2" Dielectric diagonal with 1/10λ, 99% reflectivity with FULL carbon fibre plates for SCT threaded telecopes. A lovely upgrade for any SCT telescope.

ONLY £149.00

William Optics Dura Bright 2'' Dielectric SCT Diagonal

The Series 5000 2" Enhanced Diagonal from Meade is for use with all Meade LT, LS, LX90, and LX200 telescopes. It also supports other models with standard, "Schmidt-Cassegrain" type, rear cell threads.

ONLY £158.00

Meade Series 5000 2'' Diagonal With SCT Adaptor

Introducing our new 2" XLT Diagonal. This high quality multi-coated mirror diagonal allows you to take advantage of the wider field of view provided by 2" eyepieces. Featuring our premier StarBright XLT coatings, this unit has an interferometer tested 10th wave flat mirror.

ONLY £167.00

Celestron 2'' XLT Diagonal SCT Fit

The new T-2 Maxbright Mirror Diagonal uses the proprietary Baader Maxbright all-dielectric mirror coatings, which delivers outstanding mirror flatness.

ONLY £170.00

Baader T-2 Maxbright Mirror Diagonal Sital-Ceramic Mirror

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