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RB Focus

RB Focus

(8 products)

RB Focus Motorized Focusers & Controllers

RB Focus designs precise motorized focusers and computerized controllers for astrophotography and telescope setups. Known for accuracy, smooth operation, and easy software integration, RB Focus products enable reliable, repeatable focusing for high-quality imaging.

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The wait is over! Check our the ZWO AM7🔥
ZWO delivers a mount built to handle serious payloads 💪

👉 Time to think bigger 🔭

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RBFocus
RB Focus Gaius S2 SmartBox Controller

(2)

Regular priceFrom $891⁰⁰

Very low stock (1 unit)

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RBFocus
RB Focus Gaius S2 Losmandy/Vixen Dovetail Mounting Plate

Regular price $41⁰⁰

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RBFocus
RB Focus Camelot S 2" Rotator

Regular priceFrom $486⁰⁰

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RBFocus
RB Focus Myrddin V2.3 Electronic Focus Motor

Regular priceFrom $313⁰⁰

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RBFocus
RB Focus Merlin 3.0 Electronic Focus Motor

Regular priceFrom $410⁰⁰

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RBFocus
RB Focus Merlin HD 3.0 Electronic Focus Motor

Regular priceFrom $454⁰⁰

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RBFocus
RB Focus Flat Panel eXcalibur V3.0 (eXc-V3)

Regular priceFrom $414⁰⁰

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RBFocus
RB Focus Flat Panel eXcalibur Lite (eXc-Lite)

Regular priceFrom $275⁰⁰

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Since 1988, Astronomy Plus has been a trusted Canadian source for telescopes, astrophotography equipment, and optics. We provide expert advice, quality products, and fast shipping across Canada.

📍3008 Brodeur West , Unit 307
St-Alphonse-de-Granby, Quebec, Canada
J0E 2A0

📞 450-463-5072 / 1-888-540-0444

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★ Reviews

Let customers speak for us

88%

(1697)

8%

(156)

2%

(33)

1%

(15)

1%

(19)

P

Explore Scientific 1.25" 2x Focal Extender (FE02-125)

Pierre Deguire

mechanically solid

Seems to be mechanically solid. Unfortunately I am still waiting for a clear night to properly evaluate it. That's astronomy for you!

m

Buckeye TriBahtinov Isolation Masks for Focus and Collimation

mike obrien

Nice product

Nice product, I hope it works for me. I put the tri-baht together properly, it snaps together easily. Problem, it does not fit my 11” Celestron cat. The hole in the center is too small by a millimetre so the tri-baht will not attach securely. Any suggestions?

Hi Mike, thanks for the detailed feedback, and sorry the mask isn’t securing properly on your 11” Celestron. Please contact us with your exact telescope model. What is your C11 version. Classic, Edge HD? This is probably why it does not work.

R

Celestron SkySync GPS Accessory (93969)

Robert Larose

GPS simplifie la vie

Fonctionne immédiatement une fois qu’on sait qu’il faut activer avec la manette. À date aucun délai au démarrage sur plusieurs sessions.

Y

ZWO ASI585MC USB3.0 Color Astronomy Camera - OPEN BOX (ASI585MC)

Yosmany Castaneda

Excellent camera for "Lucky imaging" of planets

Excellent camera for "Lucky imaging" of planets.

A

Celestron StarSense Explorer DX 102AZ Refractor (22460)

Alexandre Cyr

Très satisfait

Très bon outils pour amateur. Explication clair et rapide à monter. Personnel très sympathique aussi :-)

Yosmany Castaneda

Excellent camera for "Lucky imaging" of planets

Excellent camera for "Lucky imaging" of planets.

ZWO ASI585MC USB3.0 Color Astronomy Camera - OPEN BOX (ASI585MC)

David W Vandenberg

Excellent Service

Products as described, arrived 3 days before due date.
This is a great deep sky scope, and I am looking forward to getting some great pictures with it, all I need now are some clear skies (it's raining at the moment)

SVBONY SV545 Petzval Astrograph 203mm Lens F/4.5 (W9317B)

Emilio Youssef

Very sturdy and better than

Very sturdy and better than expected!

Astronomy Plus Pier Extension for ZWO, iOptron and Sky-Watcher Mounts

Claude Lamarre

ASTRONOMIK MC CLEAR FILTER 2’’ SCT 24 TPI Se visse directement sur l’adaptateur 2’’ SCT 24 TPI

ASTRONOMIK MC CLEAR FILTER 2’’ SCT 24 TPI

Se visse directement sur l’adaptateur 2’’ SCT 24 TPI , votre dos visuel se visse sur le ASTRONOMIK MC CLEAR FILTER 2’’ SCT 24 TPI.

1) Permet de sceller le tube optique. Une touche de graisse de silicone pure, de qualité, celle pour les équipements de plongée assure l’étanchéité.

2) Empêche les contaminants de s’infiltrer

3) Empêche l’effet cheminée lorsqu’on change un oculaire ou un accessoire par temps froids.

4) Combiné à une isolation thermique de l'OTA un isolant thermique à double face genre REFLECTIX, permet de sortir l’instrument d’un local chauffé vers la température frigide extérieure pour observer immédiatement sans attendre l’équilibrage des températures.

J’ai testé de 25C à 5C, sur deux nuits à l’oculaire clavé 10mm dès l’installation 5 minutes après la sortie de l’instrument, l’image est absolument nette avec seulement la turbulence d’un seeing de 3-4, et ce durant toute la durée de la séance.

Images de Saturne au MK127 de SVBONY F:1500mm, Caméra ZWO ASI 678MC au foyer primaire, Filtre 1.25" Baader contrast boost, capture .SER, Sharpcap, PIPP, AS4!, registax 6.

Les photos sont un stack des images brutes stabilisé de PIPP, et l'autre un léger traitement dans Registax 6.

Le 27 octobre vers 21h30 5 à 10 minutes après avoir sorti l’instrument, viewing 3/5. Hier avec barlow QT 2,25x Baader, résultat similaire. C'est ce que j'espérait, les tests se poursuivre.

Astronomik MC-clear Filter

Darus

Helpful staff and competitive pricing make them a solid choice

Astronomy Plus is a reliable Canadian retailer specializing in telescopes and astrophotography gear.

Their product selection is excellent — everything from smart telescopes like the Seestar series to mounts, cameras, filters, and accessories from top brands. Items arrive in perfect condition and are well-stocked.

Shipping is impressively fast!

Astronomy Plus – Telescopes & Astrophotography Canada