Prisms & Diagonal mirrors < Telescope accessories

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

Prisms & Diagonal mirrors

Optical design & connection

Top brands

Omegon

Carbonline 2'', 90° SC mirror star diagonal, 99% dielectric

$ 199.00

Omegon

Amici-Prisma 90°, 1,25''

$ 29.90

Omegon

45°, 1.25'' to 1.25'' Amici prism

$ 99.00

Omegon

Amici prism 90° 2"

$ 191.17

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Omegon

Carbonline 2", 90° mirror star diagonal, 99% dielectric

$ 199.00

Omegon

Carbonline 1.25'', 90° mirror star diagonal, 99% dielectric

$ 139.00

Omegon

Star diagonal with 99% reflection, 2"

$ 219.00

Omegon

Mirror star diagonal, 90°, 1.25"

$ 29.90

Omegon

1,25'' Amici Prism 90°

$ 169.00

Omegon

Pro Penta Prisma 90° 1.25''

$ 239.00

Seben

Zenitprisma 90° AP3 1,25''

$ 12.90

Baader

2" BBHS®-Click-Lock mirror star diagonal

$ 510.00

Levenhuk

Diagonal mirror Ra 90° 2"

$ 242.00

Baader

Zenith prism T-2/90 degree, 32mm

$ 144.00

William Optics

Diagonal mirror Dura Bright 90° 2"

$ 242.00

Explore Scientific

3" 90° mirror star diagonal

$ 610.00

Omegon

1.25" 45° erecting prism

$ 44.90

Omegon

45°, 2'' to 1.25'' Amici prism

$ 219.00

Baader

Diagonal prism 2" ClickLock BBHS®

$ 540.00

Omegon

2'', 45° Amici prism

$ 199.00

Bresser

Star diagonal 99 Percent Reflectivity 2"

$ 84.00

APM

Star diagonal 99 Percent Reflectivity 2"

$ 190.00

Omegon

Pro 1.25'', 45° penta-prism

$ 189.00

APM

Diagonal prism with quick release 2"

$ 232.00

William Optics

Dura Bright 1.25" 90° mirror star diagonal

$ 190.00

Baader