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Home > Diagonals & Erecting Prisms

Diagonals & Erecting Prisms

Diagonals let you to view the sky through a telescope from a comfortable position. Astro telescopes show an upside down reversed images. This is fine for astronomy, but not for daytime terrestrial viewing. Erecting prisms correctly orientate the image for daytime viewing.

Products

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Altair Astro 1.25" Dielectric Star Diagonal
 
1.25" Lightwave Premium Dielectric Diagonal
 
1.25" Lightwave Premium 45 Degree Correct Image Diagonal
Altair Astro 1.25" Dielectric Star Diagonal
 
1.25" Lightwave Premium Dielectric Diagonal
 
1.25" Lightwave Premium 45 Degree Correct Image Diagonal
Product code: DIAG-125IN-DIEL
 
Product code: LW-125-D99-DIAG
 
Product code: LW-125-45-DIAG
£49.99
Incl. VAT 20% ( £8.33 )
 
£65.00
Incl. VAT 20% ( £10.83 )
 
£49.99
Incl. VAT 20% ( £8.33 )
 
 
 
 
 
 
Altair 2" Meade Celestron SCT Dielectric Diagonal 99% Reflective Coating
 
Altair 2" Star Diagonal Mirror for refractor telescopes - with brass compression ring and 1.25" eyepiece adaptor.
 
Altair 2" Star Diagonal Mirror for SCT telescopes - with brass compression ring and 1.25" eyepiece adaptor, fits Meade LX & Celestron NexStar, Evolution Schmidt Cassegrain
Altair 2" Meade Celestron SCT Dielectric Diagonal 99% Reflective Coating
 
Altair 2" Star Diagonal Mirror for refractor telescopes - with brass compression ring and 1.25" eyepiece adaptor.
 
Altair 2" Star Diagonal Mirror for SCT telescopes - with brass compression ring and 1.25" eyepiece adaptor, fits Meade LX & Celestron NexStar, Evolution Schmidt Cassegrain
Product code: DIAG-SCT
 
Product code: DIAG-2IN-AL
 
Product code: DIAG-2IN-SCT-AL
£69.99
Incl. VAT 20% ( £11.67 )
 
£49.99
Incl. VAT 20% ( £8.33 )
 
£49.99
Incl. VAT 20% ( £8.33 )
 
 
 
 
 
 
Altair Dielectric Diagonal 99% Reflective 2" Push-fit for refractor telescope
 
Altair Quartz Dielectric Diagonal 99% Reflective 2" Push-fit for refractor telescope
 
2" Lightwave Premium Dielectric Diagonal Push-fit for Refractors
Altair Dielectric Diagonal 99% Reflective 2" Push-fit for refractor telescope
 
Altair Quartz Dielectric Diagonal 99% Reflective 2" Push-fit for refractor telescope
 
2" Lightwave Premium Dielectric Diagonal Push-fit for Refractors
Product code: DIAG-2IN
 
Product code: QUARTZ-DIAG-2IN
 
Product code: LW-DIAG2-P
£69.99
Incl. VAT 20% ( £11.67 )
 
£79.99
Incl. VAT 20% ( £13.33 )
 
£89.00
Incl. VAT 20% ( £14.83 )
 
 
 
 
 
 
2" Lightwave Premium Dielectric SCT Diagonal for Celestron Meade
 
Altair Premium Positive-Lock Diagonal - Dielectric 2" Pushfit
 
2" Lightwave Premium 45 Degree Correct Image Diagonal
2" Lightwave Premium Dielectric SCT Diagonal for Celestron Meade
 
Altair Premium Positive-Lock Diagonal - Dielectric 2" Pushfit
 
2" Lightwave Premium 45 Degree Correct Image Diagonal
Product code: LW-DIAG2-P-SCT
 
Product code: DIAG-2IN-POSILOCK
 
Product code: LW-2-45-DIAG
£89.00
Incl. VAT 20% ( £14.83 )
 
£119.00
Incl. VAT 20% ( £19.83 )
 
£99.00
Incl. VAT 20% ( £16.50 )
 
 
 
 
 
 
Skywatcher Dielectric Diagonals 2" & 1.25"
Skywatcher Dielectric Diagonals 2" & 1.25"
Product code: 968
£99.00
Incl. VAT 20% ( £16.50 )
 
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