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Star diagonals are important devices that divert the path of the beam of light coming from the telescope so that you do not have to strain to see, but can view comfortably and hence enjoy your observing more. The star diagonal’s prism deflects the light by 90°. Refractors, Schmidt-Cassegrain and Maksutov optics often need this device.

Amici prisms divert the light, usually by 45° or even 90°, providing an upright and non-reversed image for terrestrial observing.

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Omegon Star diagonal with 99% reflection, 2"
Omegon
Star diagonal with 99% reflection, 2"
( 5 / 5 )
$ 219.00
ready for shipping in 24 h
Omegon 1.25" 45° erecting prism
Omegon
1.25" 45° erecting prism
$ 44.90
ready for shipping in 24 h
Omegon 1.25", 90° Amici prism
Omegon
1.25", 90° Amici prism
( 5 / 5 )
$ 29.90
ready for shipping in 24 h
Omegon Carbonline 2", 90° mirror star diagonal, 99% dielectric
Omegon
Carbonline 2", 90° mirror star diagonal, 99% dielectric
$ 199.00
ready for shipping in 24 h
Omegon 1,25'' Amici Prism 90°
Omegon
1,25'' Amici Prism 90°
( 5 / 5 )
$ 169.00
ready for shipping in 24 h
Omegon Mirror star diagonal, 90°, 1.25"
Omegon
Mirror star diagonal, 90°, 1.25"
$ 29.90
ready for shipping in 24 h
Omegon 45°, 1.25'' to 1.25'' Amici prism
Omegon
45°, 1.25'' to 1.25'' Amici prism
$ 99.00
ready for shipping in 24 h
Omegon Amici prism 90° 2"
Omegon
Amici prism 90° 2"
$ 269.00
ready for shipping in 24 h
Omegon Carbonline 2'', 90° SC mirror star diagonal, 99% dielectric
Omegon
Carbonline 2'', 90° SC mirror star diagonal, 99% dielectric
$ 199.00
ready for shipping in 24 h
Omegon Pro Penta Prisma 90° 1.25''
Omegon
Pro Penta Prisma 90° 1.25''
$ 239.00
ready for shipping in 24 h
Omegon Carbonline 1.25'', 90° mirror star diagonal, 99% dielectric
Omegon
Carbonline 1.25'', 90° mirror star diagonal, 99% dielectric
$ 139.00
ready for shipping in 24 h
Omegon 2'', 45° Amici prism
Omegon
2'', 45° Amici prism
$ 199.00
ready for shipping in 24 h
Omegon Pro 1.25'', 45° penta-prism
Omegon
Pro 1.25'', 45° penta-prism
$ 189.00
ready for shipping in 24 h
Omegon 45°, 2'' to 1.25'' Amici prism
Omegon
45°, 2'' to 1.25'' Amici prism
$ 219.00
ready for shipping in 24 h
Auriga Amici prism 45° 1,25"
Auriga
Amici prism 45° 1,25"
$ 86.00
ready for shipping in 1-2 weeks
William Optics Diagonal prism RedCat 90° 1,25"
William Optics
Diagonal prism RedCat 90° 1,25"
$ 173.00
ready for shipping in 24 h
William Optics Diagonal mirror Dura Bright 90° 2"
William Optics
Diagonal mirror Dura Bright 90° 2"
$ 249.00
ready for shipping in 24 h
Denkmeier IVB Power Switch Star Diagonal S2
Denkmeier
IVB Power Switch Star Diagonal S2
$ 740.00
ready for shipping in 3-5 weeks
Auriga Diagonal mirror 90° 2"
Auriga
Diagonal mirror 90° 2"
$ 215.00
ready for shipping in 1-2 weeks
TS Optics Diagonal mirror 90° SC/2"
TS Optics
Diagonal mirror 90° SC/2"
$ 174.00
ready for shipping in 3-7 days
Skywatcher Amici prism 90° 1,25"
Skywatcher
Amici prism 90° 1,25"
$ 61.00
ready for shipping in 3-7 days
Bresser Amici prism 90° 1,25"
Bresser
Amici prism 90° 1,25"
Our price:
RRP:  $ 54.00
$ 36.90
ready for shipping in 1-2 weeks
Celestron zenith prism 90°, 1.25"
Celestron
zenith prism 90°, 1.25"
( 5 / 5 )
$ 42.90
ready for shipping in 24 h
TS Optics Diagonal mirror 90°, dielectric full coating, 1,25"
TS Optics
Diagonal mirror 90°, dielectric full coating, 1,25"
$ 109.00
ready for shipping in 3-7 days
Bresser Star diagonal 99 Percent Reflectivity 2"
Bresser
Star diagonal 99 Percent Reflectivity 2"
$ 86.00
ready for shipping in 1-2 weeks
Baader Planetarium 45° Amici prism, SC to 2"
Baader
Planetarium 45° Amici prism, SC to 2"
$ 259.00
ready for shipping in 1-2 weeks
Baader 45° picture-putting up AmiciPrisma for Maxbright binocular
Baader
45° picture-putting up AmiciPrisma for Maxbright binocular
$ 103.00
ready for shipping in 24 h
Skywatcher Diagonal Mirror Deluxe 90° 1,25"
Skywatcher
Diagonal Mirror Deluxe 90° 1,25"
$ 136.00
ready for shipping in 24 h
Artesky Diagonal mirror 90° 1.25"
Artesky
Diagonal mirror 90° 1.25"
( 5 / 5 )
$ 82.00
Product can be shipped as of 15.03.2024
Auriga Diagonal mirror 90° 1.25"
Auriga
Diagonal mirror 90° 1.25"
( 5 / 5 )
$ 119.00
ready for shipping in 24 h
Skywatcher Diagonal Mirror Deluxe 90° 2"
Skywatcher
Diagonal Mirror Deluxe 90° 2"
$ 179.00
ready for shipping in 3-7 days
Artesky Diagonal mirror 90° 2"
Artesky
Diagonal mirror 90° 2"
$ 148.00
ready for shipping in 3-5 weeks
Celestron Diagonal mirror Twist-Lock 2"
Celestron
Diagonal mirror Twist-Lock 2"
$ 357.00
ready for shipping in 1-2 weeks
Meade Diagonal mirror Series 5000 2"
Meade
Diagonal mirror Series 5000 2"
$ 281.00
ready for shipping in 3-5 weeks
TS Optics Diagonal mirror 90°, dielectric full coating, 2'' Quartzprotection
TS Optics
Diagonal mirror 90°, dielectric full coating, 2'' Quartzprotection
$ 216.00
ready for shipping in 3-7 days
Baader Zenith prism T-2/90 degree, 32mm
Baader
Zenith prism T-2/90 degree, 32mm
$ 148.00
ready for shipping in 1-2 weeks