Farpoint Dovetail Plate - Celestron 8 Inch RASA

Product Overview

Everything to put your Celestron 8″ RASA on a D-size saddle — bar, radius blocks, and hardware in one kit.

This complete kit mounts the Celestron 8″ RASA astrograph on any D-size (Losmandy-style) saddle. The 19″ dovetail bar pairs with radius blocks machined to match the 8″ RASA tube , spreading the clamping load across the curve of the optical tube instead of pinching it at two points — a solid, stress-free foundation for the fast wide-field imaging the RASA was built for. Mounting screws included; CNC-machined in the USA from black anodized aluminum.

Who Is This Product Best For?

This product is designed for telescope owners and astrophotographers who use Losmandy-style (D-size) dovetail hardware. It is an ideal choice if you need a precision-machined, reliable mounting solution that integrates with the Losmandy-style (D-size) ecosystem of plates, saddles, and accessories.

Why Choose This Product?

• Precision machined: CNC-machined and anodized for a tight, secure fit on Losmandy-style (D-size) hardware.
• Built to last: Aircraft-grade aluminum construction resists flexing under load and holds alignment.
• Trusted brand: Farpoint Astro is a respected name in telescope mounting hardware, made in the USA.

Recommended Uses

Use this telescope dovetail plate for visual observing and astrophotography setups that rely on the Losmandy-style (D-size) dovetail standard, including mounting optical tubes, guide scopes, cameras, and accessories.

Compatibility and Accessory Notes

Key compatibility and fit details:

• Fits telescope: Celestron 8″ RASA optical tube assembly
• Bar length: 19″ — see product drawing
• Bar standard: D-size (Losmandy-style)
• Kit includes: 19″ dovetail bar, radius blocks matched to the 8″ RASA tube, mounting screws
• Material: Black anodized aluminum
• Construction: CNC-machined in the USA

Important Limitations

This is a Losmandy-style (D-size) component and is not compatible with V-size (Vixen-style) hardware unless an adapter is used. Verify your telescope's mounting pattern and your mount's saddle width before purchasing.

Frequently Asked Questions

What’s included in the kit?
The 19″ D-size dovetail bar, radius blocks machined to match the Celestron 8″ RASA tube, and the mounting screws — everything needed to attach the bar to your optical tube. The telescope itself is not included. The bar drawing shows the hole pattern and measurements.

What mounts will this work with?
Any mount with a D-size (Losmandy-style) saddle — Losmandy, and the many mounts that accept the wider D standard. Mount still has a small Vixen saddle? Our D-size saddles and conversions upgrade it.

Why radius blocks instead of bolting the bar straight on?
The RASA tube is round; the bar is flat. Radius blocks are machined to the exact curve of the 8″ RASA tube so the clamping load spreads across the contact surface instead of concentrating at the bolt holes — a stiffer connection that doesn't stress the optical tube.

Our Recommendation

If you run a Losmandy-style (D-size) setup, the Farpoint Dovetail Plate - Celestron 8 Inch RASA is a dependable, precision choice that will integrate cleanly with the rest of your Farpoint dovetail system. Ontario Telescope and Accessories stocks the full Farpoint lineup to help you build a complete, matched mounting solution.