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Filter Wheels

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.

Filters

$29.00 - $29.00
$29.00
$29.00 - $29.00
$29.00

Player One Extra Filter Drawer Holder - 1.25"

POA-FD-H1.25
1 in stock

Holds Standard 1.25" Filters M28.5x0.6 Female Threads Compatible with Player One Filter Drawer MAX & MINI Enables Quick Filter Changes Desc...

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$29.00 - $29.00
$29.00
$29.00 - $29.00
$29.00
$29.00 - $29.00
$29.00
$29.00 - $29.00
$29.00

Player One Extra Filter Drawer Holder - 2"

POA-FD-H2
1 in stock

Holds Standard 2" Mounted Filters M48x0.75 Internal Female Threads Compatible with Player One Filter Drawer MAX Compatible with Player One Filter ...

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$29.00 - $29.00
$29.00
$29.00 - $29.00
$29.00
$149.00 - $149.00
$149.00
$149.00 - $149.00
$149.00

Player One Filter Drawer MAX - 2"

POA-FD-MAX
4 in stock

Securely holds standard 2" mounted filters Robust 3-point locking mechanism prevents tilt and flexure Internal M48x0.75 threads for filter mountin...

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$149.00 - $149.00
$149.00
$149.00 - $149.00
$149.00
$139.00 - $139.00
$139.00
$139.00 - $139.00
$139.00

Player One Filter Drawer MINI

POA-FD-MINI
3 in stock

Compact filter drawer system for astrophotography Available in 1.25" and 2" filter sizes Secure metal bead screw locking mechanism prevents tilt D...

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$139.00 - $139.00
$139.00
$139.00 - $139.00
$139.00
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00

Player One Phoenix Filter Wheel - 5x2"

POA-PW5-2
2 in 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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$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00

Player One Phoenix Filter Wheel - 7x36mm

POA-PW7-36
1 in 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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$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00

Player One Phoenix Filter Wheel - 8×1.25"

POA-PW8-1.25
2 in 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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$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00

Player One Phoenix Filter Wheel -7x2"

POA-PW7-2
1 in 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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$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00

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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$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
$30.00 - $30.00
$30.00
$30.00 - $30.00
$30.00

QHYCCD CFW 1.25" Adapter

QHY-020113
1 in stock

Connects QHY monochrome planetary cameras to QHYCFW3S filter wheels Enables the use of standard 1.25-inch mounted filters Compatible with 31mm unm...

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$30.00 - $30.00
$30.00
$30.00 - $30.00
$30.00
$279.00 - $1,199.00
$279.00 - $1,199.00
$279.00 - $1,199.00
$279.00

QHYCCD CFW3

Options available
2 variants in stock

Multiple carousel options for 1.25", 36mm, 2", and 50mm filters Direct-drive motor with shortest-path seeking logic Thin body profile enables use ...

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$279.00 - $1,199.00
$279.00 - $1,199.00
$279.00 - $1,199.00
$279.00
$1,419.00 - $1,419.00
$1,419.00
$1,419.00 - $1,419.00
$1,419.00

SBIG Aluma 8 x 36mm Filter Wheel

DL-FW8S-Aluma

FW8S-Aluma is the standard (non-guided) 8-position filter wheel for Aluma Series cameras. This filter wheel does not have abuilt-in self-guiding im...

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$1,419.00 - $1,419.00
$1,419.00
$1,419.00 - $1,419.00
$1,419.00
$359.00 - $359.00
$359.00
$359.00 - $359.00
$359.00

SBIG CFW-402 RGBC for STF-402

DL-CFW-402-RGB

This is the internal filter wheel for the SBIG STF-402M only. It contains very high quality interference filters custom made for this camera. Note ...

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$359.00 - $359.00
$359.00
$359.00 - $359.00
$359.00
$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00

SBIG Filter Inserts 36mm to 1.25"

DL-10105

Individual inserts that allow the use of 1.25″ filters in threaded cells to be used instead of 36mm unmounted filters in the FW8-8300 and FW8S-Alum...

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$50.00 - $50.00
$50.00
$50.00 - $50.00
$50.00
$1,219.00 - $1,219.00
$1,219.00
$1,219.00 - $1,219.00
$1,219.00

SBIG FW8-8300 for STF

DL-FW8-8300

Compatible with: Specifications Power 12 VDC Computer Interface I2C OS Compatibility Windows 32 and 64 bit OS, Mac Weight 1.35 lbs Filter...

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$1,219.00 - $1,219.00
$1,219.00
$1,219.00 - $1,219.00
$1,219.00
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00

SBIG Standard Cover for FW8-Aluma

DL-FW8-ALUMA-STD-COVER

Standard front cover for Aluma filter wheel – replaces the self-guiding front cover when minimum back focus distance is needed.

$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
$370.00 - $370.00
$370.00
$370.00 - $370.00
$370.00

SBIG Standard Cover FW8-STXL

DL-FW8-STXL-STD-COVER

Standard front cover for STXL filter wheel – replaces the self-guiding front cover for use with camera lens adapters.

$370.00 - $370.00
$370.00
$370.00 - $370.00
$370.00
$2,019.00 - $2,019.00
$2,019.00
$2,019.00 - $2,019.00
$2,019.00

SBIG STX 5 x 65mm Square Filter Wheel

DL-FW5-STX

Special order only. Specifications Computer Interface I2C OS Compatibility Windows 32 and 64 bit OS, Mac Weight 4.35 lbs Filter Size 65mm S...

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$2,019.00 - $2,019.00
$2,019.00
$2,019.00 - $2,019.00
$2,019.00
$1,919.00 - $1,919.00
$1,919.00
$1,919.00 - $1,919.00
$1,919.00

SBIG STX 7 x 50mm Square Filter Wheel

DL-FW7-STX

The SBIG FW7-STX is a 7-Position, 50mm square filter wheel for STX and Aluma AC series cameras.The SBIG FW7-STX is a 7-Position, 50mm square filter...

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$1,919.00 - $1,919.00
$1,919.00
$1,919.00 - $1,919.00
$1,919.00
$1,520.00 - $1,520.00
$1,520.00
$1,520.00 - $1,520.00
$1,520.00

SBIG STXL 8 x 36mm Filter Wheel

DL-FW8S-STXL

The SBIG FW8S-STXL provides 8 filter slots for all SBIG STXL camera models. Specifications Filter Size 36mm / 1.25" Weight 2 lbs OS Compatibi...

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$1,520.00 - $1,520.00
$1,520.00
$1,520.00 - $1,520.00
$1,520.00
$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00

SBIG Threaded 1.25" Filter Cell with Retainer for 1.1" Unmounted Filters

DL-50045

This is a 1.25″ screw-in filter cell for unmounted 1.1″ standard glass filters. The cell includes a retaining ring for holding the filter in place.

$45.00 - $45.00
$45.00
$45.00 - $45.00
$45.00
$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95

Starizona Modular Filter Slider Plates

STZ-MFS-PLATE-54M
3 in stock

Starizona Modular Filter Slider Plates

$39.95 - $39.95
$39.95
$39.95 - $39.95
$39.95
$89.95 - $89.95
$89.95
$89.95 - $89.95
$89.95

Starizona RASA 8 Filter Holder - M42 Threads

STZ-RASA8-FH

The RASA 8 Filter Holder allows the use of 2" filters on Celestron's RASA 8" telescope with a camera using M42 threads and having a 17.5mm backfoc...

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$89.95 - $89.95
$89.95
$89.95 - $89.95
$89.95
SVBONY SV133 1.25" 5-Position Filter Wheel
$48.23 - $48.23
$48.23
$48.23 - $48.23
$48.23

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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$48.23 - $48.23
$48.23
$48.23 - $48.23
$48.23

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.