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Prism rails, also called dovetail bars, are usually used for mounting telescopes onto an astronomical mount. Often these rails are also used to attach additional accessories to the telescope tube, such as a guide scope or a camera.

Two standards have been established: the relatively narrow rails introduced by the Japanese manufacturer Vixen, and the wider Losmandy rails. The latter are 3 inches wide and are mainly used for heavy telescopes.

Most astronomical mounts are designed for one of the two standards. Medium-sized mounts are often equipped with a dual mounting saddle that can accommodate both standards.

Products 1 - 36 of 190
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Omegon 120mm prism rail
Omegon
120mm prism rail
( 1 / 5 )
$ 29.90
ready for shipping in 24 h
Omegon 180mm prism rail with screw
Omegon
180mm prism rail with screw
( 5 / 5 )
$ 59.00
ready for shipping in 24 h
Omegon 55mm prism rail with screw
Omegon
55mm prism rail with screw
$ 24.90
ready for shipping in 24 h
Omegon Montageschiene lang (Losmandy Style)
Omegon
Montageschiene lang (Losmandy Style)
$ 79.00
ready for shipping in 24 h
Skywatcher 335mm Vixen prism rail
Skywatcher
335mm Vixen prism rail
$ 33.90
ready for shipping in 24 h
Omegon Montageschiene 33cm für EQ-4/5/6 Montierungen
Omegon
Montageschiene 33cm für EQ-4/5/6 Montierungen
$ 39.90
ready for shipping in 24 h
Omegon Montageschiene für EQ-4/5/6 Montierungen
Omegon
Montageschiene für EQ-4/5/6 Montierungen
$ 29.90
ready for shipping in 24 h
Omegon universal mounting plate Losmandy style (short)
Omegon
universal mounting plate Losmandy style (short)
$ 79.00
ready for shipping in 24 h
Omegon Pro Prism rail RC 6''
Omegon
Pro Prism rail RC 6''
RRP:  $ 79.00
Our price:
$ 64.90
ready for shipping in 24 h
PrimaLuceLab Prism rail PLUS Vixen-Style 350mm
PrimaLuceLab
Prism rail PLUS Vixen-Style 350mm
$ 83.00
ready for shipping in 24 h
PrimaLuceLab Prismenschiene PLUS Vixen-Style 240mm
PrimaLuceLab
Prismenschiene PLUS Vixen-Style 240mm
$ 62.00
ready for shipping in 24 h
PrimaLuceLab PLUS Losmandy-style prism rail, 240mm
PrimaLuceLab
PLUS Losmandy-style prism rail, 240mm
$ 93.00
ready for shipping in 24 h
PrimaLuceLab Prismenschiene PLUS Vixen-Style 140mm
PrimaLuceLab
Prismenschiene PLUS Vixen-Style 140mm
$ 40.90
ready for shipping in 24 h
PrimaLuceLab PLUS Losmandy-Style prism rail, 350mm
PrimaLuceLab
PLUS Losmandy-Style prism rail, 350mm
$ 93.00
ready for shipping in 24 h
William Optics Prism rail DSD 210
William Optics
Prism rail DSD 210
$ 62.00
ready for shipping in 24 h
ASToptics MINI Vixen-style dovetail, 42mm
ASToptics
MINI Vixen-style dovetail, 42mm
$ 36.90
ready for shipping in 24 h
PrimaLuceLab PLUS Losmandy-style prism rail, 495mm
PrimaLuceLab
PLUS Losmandy-style prism rail, 495mm
$ 114.00
ready for shipping in 24 h
TS Optics Guidemount - ultra-compact Vixen GP level dual mount
TS Optics
Guidemount - ultra-compact Vixen GP level dual mount
$ 70.00
ready for shipping in 24 h
ASToptics UNIVERSAL V PLATE, 215MM with 50MM PLATFORM (RED)
ASToptics
UNIVERSAL V PLATE, 215MM with 50MM PLATFORM (RED)
$ 103.00
ready for shipping in 24 h
ASToptics Universal Vixen-style dovetail, 300mm
ASToptics
Universal Vixen-style dovetail, 300mm
$ 93.00
ready for shipping in 24 h
Omegon Montageschiene 15cm für EQ-5/6 Montierungen
Omegon
Montageschiene 15cm für EQ-5/6 Montierungen
$ 29.90
ready for shipping in 24 h
ADM Prism rail Vixen-Style for RASA 8" SCT
ADM
Prism rail Vixen-Style for RASA 8" SCT
$ 194.00
ready for shipping in 24 h
Omegon Pro Prism rail RC 8''
Omegon
Pro Prism rail RC 8''
$ 49.90
ready for shipping in 24 h
Skywatcher Mounting plate for EQ-4/5/6 mounts - short
Skywatcher
Mounting plate for EQ-4/5/6 mounts - short
$ 27.90
ready for shipping in 24 h
TS Optics Losmandy-Style prism rail, 356mm
TS Optics
Losmandy-Style prism rail, 356mm
RRP:  $ 99.00
Our price:
$ 88.00
ready for shipping in 24 h
TS Optics short full aluminum - prism rail with screw
TS Optics
short full aluminum - prism rail with screw
$ 28.90
ready for shipping in 24 h
Astroprints Vixen style prism rail 200mm
Astroprints
Vixen style prism rail 200mm
$ 46.90
ready for shipping in 24 h
Baader V(EQ) dovetail for Celestron 9.25" + 11" SC/HD, orange anodised
Baader
V(EQ) dovetail for Celestron 9.25" + 11" SC/HD, orange anodised
$ 89.00
ready for shipping in 24 h
Celestron 8" dovetail plate for CGE
Celestron
8" dovetail plate for CGE
$ 62.00
ready for shipping in 24 h
ASToptics HD DUAL Losmandy and Vixen, 355mm
ASToptics
HD DUAL Losmandy and Vixen, 355mm
$ 498.00
ready for shipping in 24 h
Losmandy Universal Dovetail Plate 14"
Losmandy
Universal Dovetail Plate 14"
RRP:  $ 218.00
Our price:
$ 166.00
ready for shipping in 24 h
Omegon Losmandy-style 370mm parallel mounting plate
Omegon
Losmandy-style 370mm parallel mounting plate
$ 249.00
ready for shipping in 24 h
Baader V(EQ) dovetail bar for Celestron 8" SC / HD, orange anodised
Baader
V(EQ) dovetail bar for Celestron 8" SC / HD, orange anodised
$ 76.00
ready for shipping in 24 h
Explore Scientific Prism rails with Vixen-style 280mm camera screw
Explore Scientific
Prism rails with Vixen-style 280mm camera screw
$ 72.00
ready for shipping in 24 h
Lunt Solar Systems Prism rail, 150mm
Lunt Solar Systems
Prism rail, 150mm
$ 89.00
ready for shipping in 24 h
TS Optics Losmandy-style prism rail, 180 mm
TS Optics
Losmandy-style prism rail, 180 mm
$ 51.00
ready for shipping in 24 h
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