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Telescopes and accessories are often equipped with a prism rail - also called a dovetail bar. This rail can be attached firmly by means of a dovetail clamp to, for example, an astronomical mount.

Two standards have been established for the rails: 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.

Accordingly, there are dovetail clamps for Vixen or Losmandy rails. Dual dovetail clamps can accommodate both sizes.

Products 1 - 36 of 100
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Omegon Dual prism clamp (Losmandy- and Vixen-Style)
Omegon
Dual prism clamp (Losmandy- and Vixen-Style)
$ 119.00
ready for shipping in 24 h
PrimaLuceLab PLUS Vixen / Losmandy prism clamp
PrimaLuceLab
PLUS Vixen / Losmandy prism clamp
$ 79.00
ready for shipping in 24 h
ADM Prism clamp/adaptors for Skywatcher StarAdventurer GTi
ADM
Prism clamp/adaptors for Skywatcher StarAdventurer GTi
$ 114.00
ready for shipping in 24 h
ASToptics 150MM DX LOSMANDY LEVEL DOVETAIL CLAMP
ASToptics
150MM DX LOSMANDY LEVEL DOVETAIL CLAMP
$ 229.00
ready for shipping in 24 h
ASToptics 80MM DX LOSMANDY LEVEL DOVETAIL CLAMP
ASToptics
80MM DX LOSMANDY LEVEL DOVETAIL CLAMP
$ 137.00
ready for shipping in 24 h
Bresser Dovetail clamp Messier Vixen-Style
Bresser
Dovetail clamp Messier Vixen-Style
$ 44.90
ready for shipping in 24 h
PrimaLuceLab PLUS Vixen /Losmandy prism clamp, large
PrimaLuceLab
PLUS Vixen /Losmandy prism clamp, large
RRP:  $ 167.00
Our price:
$ 161.00
ready for shipping in 24 h
Artesky Vixen-Style Prism clamp 150mm
Artesky
Vixen-Style Prism clamp 150mm
$ 57.00
ready for shipping in 24 h
Omegon Premium clamp
Omegon
Premium clamp
$ 79.00
ready for shipping in 24 h
Artesky Vixen-Style Prism clamp 80mm
Artesky
Vixen-Style Prism clamp 80mm
$ 49.90
ready for shipping in 24 h
ADM Dual Vixen/Losmandy Prism Clamp for Celestron AVX
ADM
Dual Vixen/Losmandy Prism Clamp for Celestron AVX
$ 371.00
ready for shipping in 24 h
PegasusAstro Universal Clamp
PegasusAstro
Universal Clamp
$ 171.00
ready for shipping in 1-2 weeks
iOptron Secondary Dovetail Saddle
iOptron
Secondary Dovetail Saddle
RRP:  $ 149.00
Our price:
$ 124.00
ready for shipping in 24 h
ADM Dual Saddle Plate XL for Skywatcher EQ-6R PRO mount
ADM
Dual Saddle Plate XL for Skywatcher EQ-6R PRO mount
$ 391.00
ready for shipping in 3-5 weeks
ADM Dual Skywatcher AZ-5
ADM
Dual Skywatcher AZ-5
$ 149.00
ready for shipping in 24 h
William Optics Vixen-Style 90mm Prism Clamp
William Optics
Vixen-Style 90mm Prism Clamp
$ 114.00
ready for shipping in 24 h
ASToptics DX VIXEN/LOSMANDY CLAMP, 150MM
ASToptics
DX VIXEN/LOSMANDY CLAMP, 150MM
$ 263.00
ready for shipping in 24 h
PegasusAstro Saddle Powerbox NYX-101
PegasusAstro
Saddle Powerbox NYX-101
$ 520.00
ready for shipping in 1-2 weeks
ADM Prism clamp for Skywatcher AZ-GTI Mount
ADM
Prism clamp for Skywatcher AZ-GTI Mount
$ 136.00
ready for shipping in 3-5 weeks
TS Optics Vixen-Style Premium Prism Clamp
TS Optics
Vixen-Style Premium Prism Clamp
$ 62.00
ready for shipping in 3-7 days
Artesky Premium Losmandy-Style 255mm Prism Clamp
Artesky
Premium Losmandy-Style 255mm Prism Clamp
$ 114.00
ready for shipping in 24 h
ADM Dual Vixen/Losmandy Prism clamp for Skywatcher AZ-GTi
ADM
Dual Vixen/Losmandy Prism clamp for Skywatcher AZ-GTi
$ 166.00
ready for shipping in 3-5 weeks
PrimaLuceLab Prism clamp PLUS Vixen/Losmandy Maxi
PrimaLuceLab
Prism clamp PLUS Vixen/Losmandy Maxi
$ 228.00
ready for shipping in 24 h
TS Optics Adaptor Dovetail Clamp from Losmandy to Vixen Level
TS Optics
Adaptor Dovetail Clamp from Losmandy to Vixen Level
$ 160.00
ready for shipping in 3-7 days
Baader Prism clamp, with handle, for Losmandy-style prism rail
Baader
Prism clamp, with handle, for Losmandy-style prism rail
$ 96.00
ready for shipping in 1-2 weeks
TS Optics Prism clamp Premium XL Vixen-Style
TS Optics
Prism clamp Premium XL Vixen-Style
$ 75.00
ready for shipping in 3-7 days
TS Optics Prism clamp Premium Losmandy-Style
TS Optics
Prism clamp Premium Losmandy-Style
RRP:  $ 103.00
Our price:
$ 81.00
ready for shipping in 3-7 days
PrimaLuceLab PLUS Vixen/Losmandy with 1kg counterweight
PrimaLuceLab
PLUS Vixen/Losmandy with 1kg counterweight
$ 106.00
ready for shipping in 1-2 weeks
Geoptik Prism clamp, Losmandy-Style
Geoptik
Prism clamp, Losmandy-Style
$ 58.00
ready for shipping in 3-5 weeks
ADM VPA Synta-GP
ADM
VPA Synta-GP
$ 136.00
ready for shipping in 3-5 weeks
Rowan Dual Vixen/Losmandy Prism clamp for AZ100
Rowan
Dual Vixen/Losmandy Prism clamp for AZ100
$ 402.00
ready for shipping in 24 h
Losmandy Vixen / prism clamp
Losmandy
Vixen / prism clamp
RRP:  $ 114.00
Our price:
$ 104.00
ready for shipping in 24 h
ADM VSAD-GP Vixen Great Polaris
ADM
VSAD-GP Vixen Great Polaris
$ 254.00
ready for shipping in 3-5 weeks
Artesky Guidemount - ultra-compact Vixen GP level dual mount
Artesky
Guidemount - ultra-compact Vixen GP level dual mount
$ 149.00
ready for shipping in 3-5 weeks
ADM DSAD-SP Prism clamp for Vixen Super Polaris
ADM
DSAD-SP Prism clamp for Vixen Super Polaris
$ 254.00
ready for shipping in 3-5 weeks
ADM Prism clamp with Vixen-Losmandy adaptor
ADM
Prism clamp with Vixen-Losmandy adaptor
$ 274.00
ready for shipping in 3-5 weeks