Farpoint Dovetail System · The Original Radian Bar
This is the original Radian bar — the 14″ lightweight universal D-size dovetail, now sold direct by the manufacturer.
If you've been hunting for the Radian Telescopes 14″ lightweight universal D-style dovetail bar, you've found it — and the people who actually made it. This 14″ 57.3 Series universal dovetail bar carries a variety of mounting hole options for attaching telescope optical tubes, scope rings, and accessories to heavy-duty equatorial mounts, with a light-weighted design that keeps payload capacity for your optics and imaging train instead of your hardware. D-size (Losmandy-style). Machined of sturdy aluminum with a black anodized finish. CNC-machined in the USA.
From Radian Bar to 57.3 Series
Farpoint manufactured these bars for OPT (Oceanside Photo & Telescope), who sold them under the Radian Telescopes brand. When OPT closed its doors, we continued the line under the 57.3 Series name — same bar, same tooling, same USA machining — now sold direct from the manufacturer.
This 14″ bar is the original Radian length. We've since expanded the design into a family: a compact 6″ version and a long 21.5″ version for big tubes and imaging rigs.
Specifications
Bar length
14″
Series
57.3 Series — originally sold as the Radian lightweight universal D-style dovetail bar
Bar standard
D-size (Losmandy-style)
Design
Light-weighted universal bar — variety of mounting hole options (see product drawing)
Finish
Black anodized aluminum
Construction
CNC-machined in the USA
Which Universal Bar?
Bar
Length
Holes
57.3 Series 14″ (Radian)This model
14″
Variety of mounting holes
Check your hole pattern before ordering. Reference the product drawing for mounting hole options and measurements — or email us and we'll confirm your fit.
Frequently Asked Questions
Is this the Radian dovetail bar?
Yes. Farpoint manufactured these bars for OPT (Oceanside Photo & Telescope), who sold them as the Radian Telescopes lightweight universal D-style dovetail bar. With OPT now closed, we sell the same bar direct under the 57.3 Series name. This 14″ is the original Radian length.
Need a different length?
We expanded the Radian design into a family: the 57.3 Series 21.5″ bar for long tubes and maximum balance range, plus a compact 6″ version.
What mounts will this work with?
Any mount with a D-size (Losmandy-style) saddle. Mount still has a small Vixen saddle? Our D-size saddles and conversions upgrade it.
Building out a D-size dovetail rig?
Browse all universal bars, or start with the dovetail system guide.
Shop universal D-size bars Read the dovetail guide
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