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.
Optical design & connection
Top brands
Omegon
Carbonline 2'', 90° SC mirror star diagonal, 99% dielectric
$ 199.00
ready for shipping in 24
h
Omegon
1.25", 90° Amici prism
( 5 / 5 )
$ 29.90
ready for shipping in 24
h
Omegon
Carbonline 1.25'', 90° mirror star diagonal, 99% dielectric
$ 139.00
ready for shipping in 24
h
Omegon
Star diagonal with 99% reflection, 2"
( 5 / 5 )
$ 219.00
ready for shipping in 24
h
Omegon
Carbonline 2", 90° mirror star diagonal, 99% dielectric
$ 199.00
ready for shipping in 24
h
Omegon
45°, 1.25'' to 1.25'' Amici prism
$ 99.00
ready for shipping in 24
h
Baader
Diagonal mirror ClickLock 2"
( 5 / 5 )
$ 319.00
ready for shipping in 1-2
weeks
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Omegon
Amici prism 90° 2"
$ 194.97
Sale price:
$ 181.00
ready for shipping in 24
h
Omegon
Mirror star diagonal, 90°, 1.25"
$ 29.90
ready for shipping in 24
h
Omegon
1,25'' Amici Prism 90°
( 5 / 5 )
$ 169.00
ready for shipping in 24
h
Omegon
Pro Penta Prisma 90° 1.25''
$ 239.00
ready for shipping in 24
h
Seben
Zenitprisma 90° AP3 1,25''
$ 12.90
ready for shipping in 24
h
Levenhuk
Diagonal mirror Ra 90° 2"
$ 247.00
ready for shipping in 24
h
Baader
Zenith prism T-2/90 degree, 32mm
$ 147.00
ready for shipping in 1-2
weeks
Explore Scientific
3" 90° mirror star diagonal
$ 620.00
ready for shipping in 1-2
weeks
Omegon
1.25" 45° erecting prism
$ 44.90
ready for shipping in 24
h
Omegon
45°, 2'' to 1.25'' Amici prism
$ 219.00
ready for shipping in 24
h
Baader
2" BBHS®-Click-Lock mirror star diagonal
$ 520.00
ready for shipping in 1-2
weeks
Omegon
2'', 45° Amici prism
$ 199.00
ready for shipping in 24
h
APM
Star diagonal 99 Percent Reflectivity 2"
$ 193.00
ready for shipping in 1-2
weeks
William Optics
Diagonal mirror Dura Bright 90° 2"
$ 247.00
ready for shipping in 3-5
weeks
Omegon
Pro 1.25'', 45° penta-prism
$ 189.00
ready for shipping in 24
h
Celestron
zenith prism 90°, 1.25"
( 5 / 5 )
$ 42.90
ready for shipping in 24
h
APM
Diagonal prism with quick release 2"
$ 236.00
ready for shipping in 1-2
weeks
William Optics
Dura Bright 1.25" 90° mirror star diagonal
$ 193.00
ready for shipping in 24
h
Auriga
Diagonal mirror 90° 1.25"
( 5 / 5 )
$ 118.00
ready for shipping in 24
h
Bresser
Star diagonal 99 Percent Reflectivity 2"
$ 86.00
ready for shipping in 24
h
Baader
Amici prism ClickLock BBHS® 90° 2"
$ 730.00
ready for shipping in 1-2
weeks
Bresser
Amici prism 90° 1,25"
$ 53.00
ready for shipping in 1-2
weeks
Baader
Amici prism 90° 2"
$ 315.00
ready for shipping in 1-2
weeks
TeleVue
Diagonal mirror Everbrite SC 90° 2"
RRP:
$ 730.00
Our price:
$ 609.00
ready for shipping in 6-10
weeks
TS Optics
1.25", mirror star diagonal for Imaging Star apochromats
$ 150.00
Sale price:
$ 107.72
ready for shipping in 24
h
Skywatcher
Amici prism 45° 1,25"
$ 61.00
ready for shipping in 1-2
weeks
Skywatcher
Amici prism 45° 2"
$ 200.00
ready for shipping in 1-2
weeks
Baader
90°, T2 star diagonal with 35mm of free aperture
$ 262.00
ready for shipping in 3-7
days
Auriga
Diagonal mirror 90° 2"
$ 214.00
ready for shipping in 1-2
weeks