Prisms & Diagonal mirrors < Telescope accessories < Astronomy

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

1.25", 90° Amici prism

$ 29.90

Omegon

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

$ 139.00

Omegon

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

$ 199.00

Omegon

1,25'' Amici Prism 90°

$ 169.00

Omegon

Amici prism 90° 2"

$ 190.65

Sale price:

Seben

Zenitprisma 90° AP3 1,25''

$ 12.90

Omegon

Star diagonal with 99% reflection, 2"

$ 219.00

Omegon

45°, 1.25'' to 1.25'' Amici prism

$ 99.00

Omegon

1.25" 45° erecting prism

$ 44.90

Omegon

45°, 2'' to 1.25'' Amici prism

$ 219.00

Omegon

Mirror star diagonal, 90°, 1.25"

$ 29.90

Omegon

2'', 45° Amici prism

$ 199.00

Omegon

Pro Penta Prisma 90° 1.25''

$ 239.00

Omegon

Pro 1.25'', 45° penta-prism

$ 189.00

Levenhuk

Diagonal mirror Ra 90° 2"

$ 242.00

William Optics

Diagonal mirror Dura Bright 90° 2"

$ 242.00

William Optics

Dura Bright 1.25" 90° mirror star diagonal

$ 189.00

Baader

Amici prism ClickLock BBHS® 90° 2"

$ 710.00

Explore Scientific

3" 90° mirror star diagonal

$ 610.00

Baader

2" BBHS®-Click-Lock mirror star diagonal

$ 510.00

Baader

Amici prism 90° 2"

$ 308.00

TeleVue

Diagonal mirror Everbrite SC 90° 2"

RRP: $ 710.00

Our price:

TS Optics

1.25", mirror star diagonal for Imaging Star apochromats

$ 147.00

Sale price:

Baader

BBHS® T2 mirror star diagonal