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Roues à filtres

A filter wheel is what makes monochrome imaging practical. Without one, every channel change means touching the telescope, breaking focus and losing framing; with one, the sequence runs unattended all night while you sleep. David Astro carries filter wheels in Canada in manual and motorized designs across the common filter sizes, held in our Canadian warehouse.

Wheel choice is constrained by your filter size, your camera and the back-focus you have available. Send us all three and we will specify the combination.

Filtres

Daystar Solar System Filter Wheel - Housing Only (existing optics moved)
CA$11,953.00 - CA$72,342.00
CA$11,953.00 - CA$72,342.00
CA$11,953.00 - CA$72,342.00
CA$11,953.00

Daystar Solar System Filter Wheel

Options available

Houses up to four independent, electronically tuned solar filters Switches between filters in less than three seconds Choose a loaded configuratio...

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CA$11,953.00 - CA$72,342.00
CA$11,953.00 - CA$72,342.00
CA$11,953.00 - CA$72,342.00
CA$11,953.00
iOptron iEFW-15 5-Position Electronic Filter Wheel for 1.25'' or 31mm Filters
CA$279.00 - CA$279.00
CA$279.00
CA$279.00 - CA$279.00
CA$279.00

iOptron iEFW-15 5-Position Electronic Filter Wheel for 1.25'' or 31mm Filters

IOP-3381

Automates filter changes for astrophotography 5-position carousel Accepts both 1.25" mounted filters Accepts 31mm unmounted filters Enables unatte...

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CA$279.00 - CA$279.00
CA$279.00
CA$279.00 - CA$279.00
CA$279.00
iOptron iEFW-18, 8-Filter Electronic Filter Wheel for 1.25'' or 31mm Filters
CA$405.00 - CA$405.00
CA$405.00
CA$405.00 - CA$405.00
CA$405.00

iOptron iEFW-18, 8-Filter Electronic Filter Wheel for 1.25'' or 31mm Filters

IOP-3382

Holds up to 8 filters Compatible with 1.25" mounted filters Compatible with 31mm unmounted filters Electronic control for automated imaging Des...

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CA$405.00 - CA$405.00
CA$405.00
CA$405.00 - CA$405.00
CA$405.00
CA$642.00 - CA$642.00
CA$642.00
CA$642.00 - CA$642.00
CA$642.00

Pegasus Astro Indigo Filter Wheel - 7 x 2"

PEG-INDIGOFW7-2

Holds seven 2-inch mounted or 50mm unmounted filters Ultra-thin 19.0mm CNC-milled aluminum body Stepper motor with optical encoders for precise po...

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CA$642.00 - CA$642.00
CA$642.00
CA$642.00 - CA$642.00
CA$642.00
CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00

Player One Phoenix Filter Wheel - 5x2"

POA-PW5-2
2 en stock

Accommodates five 2-inch mounted filters Automates filter changes for imaging sequences Designed for LRGB and narrowband astrophotography USB conn...

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CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00

Player One Phoenix Filter Wheel - 7x36mm

POA-PW7-36
1 en stock

Accommodates 7 x 36mm unmounted filters Enables automated filter sequencing for monochrome cameras Ideal for full LRGB + narrowband imaging setups...

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CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00

Player One Phoenix Filter Wheel - 8×1.25"

POA-PW8-1.25
2 en stock

Holds eight 1.25" mounted filters Automates filter changes for complex imaging sequences Ideal for LRGB, SHO, and other multi-filter palettes USB ...

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CA$418.00 - CA$418.00
CA$418.00
CA$418.00 - CA$418.00
CA$418.00
CA$558.00 - CA$558.00
CA$558.00
CA$558.00 - CA$558.00
CA$558.00

Player One Phoenix Filter Wheel -7x2"

POA-PW7-2
2 en stock

Holds seven 2-inch mounted filters Automates filter changes for unattended imaging Ideal for LRGB and narrowband palettes Designed for cameras wit...

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CA$558.00 - CA$558.00
CA$558.00
CA$558.00 - CA$558.00
CA$558.00
CA$558.00 - CA$558.00
CA$558.00
CA$558.00 - CA$558.00
CA$558.00

Player One Phoenix Filter Wheel -7x50mm

POA-PW7-50

Accommodates seven 50mm round, unmounted filters Designed for large-format and full-frame sensors Enables automated LRGB and narrowband imaging se...

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CA$558.00 - CA$558.00
CA$558.00
CA$558.00 - CA$558.00
CA$558.00
CA$391.00 - CA$1,679.00
CA$391.00 - CA$1,679.00
CA$391.00 - CA$1,679.00
CA$391.00

QHYCCD CFW3

Options available
2 variants in stock

La roue de filtre couleur QHYCCD de 3e génération Le nouveau moteur pas à pas ultra fin et la commutation de filtre entièrement automatique révolu...

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CA$391.00 - CA$1,679.00
CA$391.00 - CA$1,679.00
CA$391.00 - CA$1,679.00
CA$391.00
CA$1,989.00 - CA$1,989.00
CA$1,989.00
CA$1,989.00 - CA$1,989.00
CA$1,989.00

SBIG Roue à Filtres Aluma 8x36mm

DL-FW8S-Aluma

FW8S-Aluma est la roue à filtres standard (non guidée) à 8 positions pour les caméras de la série Aluma. Cette roue à filtres n'a pas de capteur d'...

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CA$1,989.00 - CA$1,989.00
CA$1,989.00
CA$1,989.00 - CA$1,989.00
CA$1,989.00
CA$505.00 - CA$505.00
CA$505.00
CA$505.00 - CA$505.00
CA$505.00

SBIG CFW-402 RGBC pour STF-402

DL-CFW-402-RGB

Il s'agit de la roue à filtres interne pour le SBIG STF-402M uniquement. Il contient des filtres interférentiels de très haute qualité spécialemen...

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CA$505.00 - CA$505.00
CA$505.00
CA$505.00 - CA$505.00
CA$505.00
CA$1,709.00 - CA$1,709.00
CA$1,709.00
CA$1,709.00 - CA$1,709.00
CA$1,709.00

SBIG FW8-8300 pour STF

DL-FW8-8300

Compatible avec: Caractéristiques Pouvoir 12 Vcc Interface informatique I2C Compatibilité du système d'exploitation Système ...

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CA$1,709.00 - CA$1,709.00
CA$1,709.00
CA$1,709.00 - CA$1,709.00
CA$1,709.00
CA$519.00 - CA$519.00
CA$519.00
CA$519.00 - CA$519.00
CA$519.00

SBIG Couvercle Standard pour FW8-Aluma

DL-FW8-ALUMA-STD-COVER

Couvercle avant standard pour roue à filtres Aluma - remplace le couvercle avant autoguidé lorsqu'une distance minimale de mise au point arrière e...

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CA$519.00 - CA$519.00
CA$519.00
CA$519.00 - CA$519.00
CA$519.00
CA$520.00 - CA$520.00
CA$520.00
CA$520.00 - CA$520.00
CA$520.00

SBIG Couvercle Standard FW8-STXL

DL-FW8-STXL-STD-COVER

Capot avant standard pour roue à filtres STXL - remplace le capot avant autoguidé pour une utilisation avec les adaptateurs d'objectif de caméra.

CA$520.00 - CA$520.00
CA$520.00
CA$520.00 - CA$520.00
CA$520.00
CA$2,829.00 - CA$2,829.00
CA$2,829.00
CA$2,829.00 - CA$2,829.00
CA$2,829.00

SBIG Roue à Filtres STX 5x65mm Carrés

DL-FW5-STX

Commande spéciale seulement. Caractéristiques Interface informatique I2C Compatibilité du système d'exploitation Système d'exploitat...

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CA$2,829.00 - CA$2,829.00
CA$2,829.00
CA$2,829.00 - CA$2,829.00
CA$2,829.00
CA$2,689.00 - CA$2,689.00
CA$2,689.00
CA$2,689.00 - CA$2,689.00
CA$2,689.00

SBIG Roue à Filtres STX 7x50mm Carrés

DL-FW7-STX

Le SBIG FW7-STX est une roue à filtres carrée de 50 mm à 7 positions pour les caméras des séries STX et Aluma AC. Le SBIG FW7-STX est une roue à fi...

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CA$2,689.00 - CA$2,689.00
CA$2,689.00
CA$2,689.00 - CA$2,689.00
CA$2,689.00
CA$2,130.00 - CA$2,130.00
CA$2,130.00
CA$2,130.00 - CA$2,130.00
CA$2,130.00

SBIG Roue à Filtres STXL 8x36mm

DL-FW8S-STXL

Le SBIG FW8S-STXL fournit 8 emplacements de filtre pour tous les modèles de caméras SBIG STXL. Caractéristiques Taille du filtre 36mm / 1.2...

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CA$2,130.00 - CA$2,130.00
CA$2,130.00
CA$2,130.00 - CA$2,130.00
CA$2,130.00
SVBONY SV133 1.25" 5-Position Filter Wheel
CA$68.00 - CA$68.00
CA$68.00
CA$68.00 - CA$68.00
CA$68.00

SVBONY SV133 5-Position Filter Wheel - 1.25"

SV-W9103A

Accommodates five standard 1.25" threaded filters Manual wheel with precise click-stop positioning T2-threaded connections for direct camera attac...

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CA$68.00 - CA$68.00
CA$68.00
CA$68.00 - CA$68.00
CA$68.00
SVBONY SV133 2" 5-Position Filter Wheel for Deep Sky Astrophotography
CA$91.00 - CA$91.00
CA$91.00
CA$91.00 - CA$91.00
CA$91.00

SVBONY SV133 5-Position Filter Wheel - 2"

SV-W9103B

Accommodates five 2-inch filters 2-inch barrel for telescope connection 2-inch eyepiece and camera compatibility Enables rapid filter changes duri...

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CA$91.00 - CA$91.00
CA$91.00
CA$91.00 - CA$91.00
CA$91.00
Wanderer Astro Snowflake Filter Wheel - 8 x 36mm Super Low-Profile
CA$517.00 - CA$517.00
CA$517.00
CA$517.00 - CA$517.00
CA$517.00

Wanderer Astro Snowflake Filter Wheel - 8 x 36mm Super Low-Profile

WA-WSFW36S

Holds 8 x 36mm unmounted filters Ultra-low profile design, as thin as 14mm Gear-driven mechanism with anti-backlash for repeatability Dedicated 8t...

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CA$517.00 - CA$517.00
CA$517.00
CA$517.00 - CA$517.00
CA$517.00
Wanderer Astro Snowflake Filter Wheel - 8 x 50mm Super Low-Profile
CA$769.00 - CA$769.00
CA$769.00
CA$769.00 - CA$769.00
CA$769.00

Wanderer Astro Snowflake Filter Wheel - 8 x 50mm Super Low-Profile

WA-WSFW50S

Accommodates 8 x 50mm unmounted filters Ultra low-profile body for systems with limited back focus Gear-driven mechanism with anti-backlash for re...

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CA$769.00 - CA$769.00
CA$769.00
CA$769.00 - CA$769.00
CA$769.00
Wanderer Astro Snowflake Filter Wheel - 8 x 50mm/2"
CA$657.00 - CA$657.00
CA$657.00
CA$657.00 - CA$657.00
CA$657.00

Wanderer Astro Snowflake Filter Wheel - 8 x 50mm/2"

WA-WSFW50

Accommodates 8 x 50mm round (or 2" mounted) filters Ultra low-profile design for tight back focus requirements Gear-driven with anti-backlash mech...

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CA$657.00 - CA$657.00
CA$657.00
CA$657.00 - CA$657.00
CA$657.00
CA$849.00 - CA$849.00
CA$849.00
CA$849.00 - CA$849.00
CA$849.00

ZWO EFW - Roue à filtre carrée 7 x 50 mm

ZWO EFW-7x50

La roue à filtre électronique de 50 mm est fraisée CNC à partir d'un bloc d'aluminium de qualité aéronautique. Qualité garantie! L'adoption...

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CA$849.00 - CA$849.00
CA$849.00
CA$849.00 - CA$849.00
CA$849.00

Choosing a Filter Wheel

Three specifications determine whether a wheel works in your system: filter size and count, optical thickness, and how it integrates with your camera and guider.

  • Filter size and position count: More positions means fewer swaps, but a larger wheel diameter and often greater thickness. Five to seven positions covers LRGB plus narrowband for most imagers.
  • Optical thickness: The wheel consumes back-focus, and this must be included in your corrector spacing calculation. Slim designs exist specifically to conserve it.
  • Mounted versus unmounted filters: Wheels are built for one or the other. Unmounted square filters maximize clear aperture for large sensors but need a compatible carrier.
  • Motorized versus manual: Motorized wheels are essential for unattended sequences. Manual wheels are cheaper and adequate if you are present and refocusing anyway.
  • Off-axis guider integration: Many wheels accept an integrated off-axis guider, keeping the train short and the guide star picked off ahead of the filters.
  • Vignetting geometry: Filter size must suit sensor diagonal and the distance from filter to sensor. Too small and the corners darken regardless of the optics.

Why Choose David Astro for Filter Wheels

A filter wheel is a back-focus decision as much as a convenience one.

  • Thickness included in the calculation: We provide a complete spacing list with the wheel accounted for, so your corrector still lands on its design distance.
  • Filter size verified against your sensor: We calculate the size needed to avoid vignetting rather than assuming the nominal match is adequate.
  • Off-axis guider planned together: If you will need one at your focal length, we specify it with the wheel so the geometry works out the first time.
  • Authorized dealer: Genuine wheels with manufacturer warranty, in Canadian stock.
  • Ships from Canada: No duties or brokerage fees for Canadian orders.

Filter Wheels in Canada — Frequently Asked Questions

How many filter positions do I need?
Five covers LRGB plus one narrowband. Seven covers LRGB plus Ha, OIII and SII, which is the complete common set and avoids ever swapping filters by hand.
What filter size should I use?
It depends on sensor diagonal and how far the filter sits from the sensor. 36 mm typically suits APS-C in a standard wheel; full frame usually needs 50 mm square or unmounted 2 inch.
Does the wheel affect my back-focus?
Yes, significantly — often 20 mm or more of the typical 55 mm budget. It must be included in the calculation along with the camera and any off-axis guider.
Manual or motorized?
Motorized if you run unattended sequences, which is most of the point of monochrome imaging. Manual is a reasonable economy only if you are at the telescope throughout the session.

Building a mono imaging train?

Send us your camera, filters and corrector and we will specify the wheel and spacing. Full warranty, shipped from Canada.