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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 55mm prism rail with screw
Omegon
55mm prism rail with screw
$ 24.90
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 Montageschiene lang (Losmandy Style)
Omegon
Montageschiene lang (Losmandy Style)
$ 79.00
ready for shipping in 24 h
ASToptics HEAVY DUTY DUAL L/V MOUNTING, 355MM
ASToptics
HEAVY DUTY DUAL L/V MOUNTING, 355MM
$ 680.00
ready for shipping in 3-5 weeks
ASToptics HD DUAL Losmandy and Vixen, 355mm
ASToptics
HD DUAL Losmandy and Vixen, 355mm
$ 510.00
Sale price:
$ 341.04
ready for shipping in 24 h
PrimaLuceLab Prismenschiene PLUS Vixen-Style 140mm
PrimaLuceLab
Prismenschiene PLUS Vixen-Style 140mm
$ 41.90
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 für EQ-4/5/6 Montierungen
Omegon
Montageschiene für EQ-4/5/6 Montierungen
$ 29.90
ready for shipping in 24 h
PrimaLuceLab PLUS Losmandy-style prism rail, 240mm
PrimaLuceLab
PLUS Losmandy-style prism rail, 240mm
$ 94.00
ready for shipping in 24 h
PrimaLuceLab Prismenschiene PLUS Vixen-Style 240mm
PrimaLuceLab
Prismenschiene PLUS Vixen-Style 240mm
$ 63.00
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
ADM Prism rail Vixen-Style for RASA 8" SCT
ADM
Prism rail Vixen-Style for RASA 8" SCT
$ 196.00
ready for shipping in 24 h
Losmandy Male to Male Adaptor Plate 178mm
Losmandy
Male to Male Adaptor Plate 178mm
$ 189.00
Sale price:
$ 136.84
ready for shipping in 24 h
ASToptics UNIVERSAL V PLATE, 215MM with 50MM PLATFORM (RED)
ASToptics
UNIVERSAL V PLATE, 215MM with 50MM PLATFORM (RED)
$ 105.00
ready for shipping in 24 h
ASToptics Universal Vixen-style dovetail, 300mm
ASToptics
Universal Vixen-style dovetail, 300mm
$ 94.00
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
$ 84.00
ready for shipping in 24 h
William Optics Losmandy Swan Series 400mm
William Optics
Losmandy Swan Series 400mm
$ 210.00
ready for shipping in 3-5 weeks
PrimaLuceLab PLUS Losmandy-Style prism rail, 350mm
PrimaLuceLab
PLUS Losmandy-Style prism rail, 350mm
$ 94.00
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
Losmandy dovetail plate for Celestron 8"
Losmandy
dovetail plate for Celestron 8"
$ 242.00
Sale price:
$ 216.84
ready for shipping in 24 h
Losmandy dovetail plate for Celestron 9.25"
Losmandy
dovetail plate for Celestron 9.25"
$ 315.00
Sale price:
$ 283.15
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
ASToptics MINI Vixen-style dovetail, 42mm
ASToptics
MINI Vixen-style dovetail, 42mm
$ 36.90
ready for shipping in 24 h
PrimaLuceLab Prismenschiene PLUS Losmandy SC 8
PrimaLuceLab
Prismenschiene PLUS Losmandy SC 8
$ 178.00
ready for shipping in 24 h
William Optics Prism rail DSD 210
William Optics
Prism rail DSD 210
$ 63.00
ready for shipping in 24 h
Losmandy dovetail plate for Meade 16" f/8
Losmandy
dovetail plate for Meade 16" f/8
$ 368.00
ready for shipping in 6-10 weeks
ADM Dovetail Bar V-Series (Vixen-Style) for RC 8"
ADM
Dovetail Bar V-Series (Vixen-Style) for RC 8"
$ 178.00
Sale price:
$ 128.42
ready for shipping in 24 h
ASToptics Universal V-style camera dovetail, 100mm
ASToptics
Universal V-style camera dovetail, 100mm
$ 63.00
Sale price:
$ 55.79
ready for shipping in 24 h
Orion Optics UK Prism rail Losmandy-Style 400mm
Orion Optics UK
Prism rail Losmandy-Style 400mm
$ 305.00
ready for shipping in 24 h
Losmandy dovetail plate for Meade 8" SC
Losmandy
dovetail plate for Meade 8" SC
$ 242.00
ready for shipping in 6-10 weeks
ASToptics IMPROVED VIXEN STYLE PLATE, 200MM
ASToptics
IMPROVED VIXEN STYLE PLATE, 200MM
$ 94.00
ready for shipping in 24 h
Orion Optics UK Prism rail Losmandy-Style 350mm
Orion Optics UK
Prism rail Losmandy-Style 350mm
$ 294.00
ready for shipping in 24 h
ASToptics UNIVERSAL V PLATE 215MM with 50MM PLATFORM (SILVER)
ASToptics
UNIVERSAL V PLATE 215MM with 50MM PLATFORM (SILVER)
$ 105.00
ready for shipping in 24 h
Orion Optics UK Prism rail Losmandy-Style 250mm
Orion Optics UK
Prism rail Losmandy-Style 250mm
$ 273.00
Sale price:
$ 175.78
ready for shipping in 24 h
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