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Filter Wheels & Drawers

A filter wheel holds five to eight filters in front of a mono camera and switches between them under software control, so an LRGB or narrowband sequence can run all night without you touching the telescope. A filter drawer does the same job one filter at a time, with a quick slide-in holder. It is the simpler option for colour cameras that only swap occasionally between a broadband and a dual-band filter.

We carry ZWO EFW, Player One Phoenix and Filter Drawer, Pegasus Astro Indigo, Wanderer Astro Snowflake, QHYCCD CFW3, SBIG, SVBONY, Baader UFC and filter drawers from Askar, Starizona and William Optics.

Filters

Original price CA$229.00 - Original price CA$229.00
Original price
CA$229.00
CA$229.00 - CA$229.00
Current price CA$229.00

Askar Multifunctional Filter Drawer

Integrates telescope and camera adapters to reduce complexity Accepts five common filter formats in a single system Supports 1.25" and 2" mounted ...

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Original price CA$229.00 - Original price CA$229.00
Original price
CA$229.00
CA$229.00 - CA$229.00
Current price CA$229.00
Original price CA$430.00 - Original price CA$430.00
Original price
CA$430.00
CA$430.00 - CA$430.00
Current price CA$430.00

Baader Planetarium FCCT 1 Filter Holder for RASA 8" & 77mm QHY Cameras

Designed for the Celestron RASA 8" Astrograph Enables filter use in a fast f/2 optical system Maintains the RASA's critical back focus distance Co...

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Original price CA$430.00 - Original price CA$430.00
Original price
CA$430.00
CA$430.00 - CA$430.00
Current price CA$430.00
Original price CA$75.00 - Original price CA$75.00
Original price
CA$75.00
CA$75.00 - CA$75.00
Current price CA$75.00

Baader UFC Filter Slider - for 50mm Square Filters

Accommodates one 50x50mm unmounted square filter Designed for the Baader Planetarium UFC (Universal Filter Changer) System Enables quick, tool-fre...

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Original price CA$75.00 - Original price CA$75.00
Original price
CA$75.00
CA$75.00 - CA$75.00
Current price CA$75.00
Original price CA$66.00 - Original price CA$66.00
Original price
CA$66.00
CA$66.00 - CA$66.00
Current price CA$66.00

Baader UFC Filter Slider - for 2" Mounted Filters

Enables use of standard 2" mounted filters in the UFC system Allows for rapid, tool-free filter changes Maintains a consistent optical path for pa...

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Original price CA$66.00 - Original price CA$66.00
Original price
CA$66.00
CA$66.00 - CA$66.00
Current price CA$66.00
Original price CA$66.00 - Original price CA$66.00
Original price
CA$66.00
CA$66.00 - CA$66.00
Current price CA$66.00

Baader UFC Filter Slider - for 50mm Round Unmounted Filters

Designed for the Baader Universal Filter Changer (UFC) System Securely holds one 50mm round unmounted filter Accepts filter diameters from 50mm to...

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Original price CA$66.00 - Original price CA$66.00
Original price
CA$66.00
CA$66.00 - CA$66.00
Current price CA$66.00
Original price CA$85.00 - Original price CA$85.00
Original price
CA$85.00
CA$85.00 - CA$85.00
Current price CA$85.00

Baader Universal Filter Changer (UFC) Base

The foundational component of the Baader Universal Filter Changer (UFC) system Acts as the central chamber for accepting various UFC filter slider...

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Original price CA$85.00 - Original price CA$85.00
Original price
CA$85.00
CA$85.00 - CA$85.00
Current price CA$85.00
Original price CA$11,953.00 - Original price CA$72,342.00
Original price
CA$11,953.00 - CA$72,342.00
CA$11,953.00 - CA$72,342.00
Current price CA$11,953.00

Daystar Solar System Filter Wheel

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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Original price CA$11,953.00 - Original price CA$72,342.00
Original price
CA$11,953.00 - CA$72,342.00
CA$11,953.00 - CA$72,342.00
Current price CA$11,953.00
Original price CA$279.00 - Original price CA$279.00
Original price
CA$279.00
CA$279.00 - CA$279.00
Current price CA$279.00

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

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

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Original price CA$279.00 - Original price CA$279.00
Original price
CA$279.00
CA$279.00 - CA$279.00
Current price CA$279.00
Original price CA$405.00 - Original price CA$405.00
Original price
CA$405.00
CA$405.00 - CA$405.00
Current price CA$405.00

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

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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Original price CA$405.00 - Original price CA$405.00
Original price
CA$405.00
CA$405.00 - CA$405.00
Current price CA$405.00
Original price CA$980.00 - Original price CA$980.00
Original price
CA$980.00
CA$980.00 - CA$980.00
Current price CA$980.00

Pegasus Astro Indigo Filter Wheel + LRGB 2'' Mounted Filter Set Optolong

7-position capacity for 2-inch mounted filters Includes a complete 2-inch Optolong LRGB filter set Automated filter selection for monochrome imagi...

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Original price CA$980.00 - Original price CA$980.00
Original price
CA$980.00
CA$980.00 - CA$980.00
Current price CA$980.00
Original price CA$560.00 - Original price CA$560.00
Original price
CA$560.00
CA$560.00 - CA$560.00
Current price CA$560.00

Pegasus Astro Indigo Filter Wheel - 7 x 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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Original price CA$560.00 - Original price CA$560.00
Original price
CA$560.00
CA$560.00 - CA$560.00
Current price CA$560.00
Original price CA$208.00 - Original price CA$208.00
Original price
CA$208.00
CA$208.00 - CA$208.00
Current price CA$208.00

Player One Filter Drawer MAX - 2"

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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Original price CA$208.00 - Original price CA$208.00
Original price
CA$208.00
CA$208.00 - CA$208.00
Current price CA$208.00
Original price CA$194.00 - Original price CA$194.00
Original price
CA$194.00
CA$194.00 - CA$194.00
Current price CA$194.00

Player One Filter Drawer MINI

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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Original price CA$194.00 - Original price CA$194.00
Original price
CA$194.00
CA$194.00 - CA$194.00
Current price CA$194.00
Original price CA$418.00 - Original price CA$418.00
Original price
CA$418.00
CA$418.00 - CA$418.00
Current price CA$418.00

Player One Phoenix Filter Wheel - 5x2"

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

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Original price CA$418.00 - Original price CA$418.00
Original price
CA$418.00
CA$418.00 - CA$418.00
Current price CA$418.00
Original price CA$418.00 - Original price CA$418.00
Original price
CA$418.00
CA$418.00 - CA$418.00
Current price CA$418.00

Player One Phoenix Filter Wheel - 7x36mm

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

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Original price CA$418.00 - Original price CA$418.00
Original price
CA$418.00
CA$418.00 - CA$418.00
Current price CA$418.00
Original price CA$418.00 - Original price CA$418.00
Original price
CA$418.00
CA$418.00 - CA$418.00
Current price CA$418.00

Player One Phoenix Filter Wheel - 8×1.25"

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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Original price CA$418.00 - Original price CA$418.00
Original price
CA$418.00
CA$418.00 - CA$418.00
Current price CA$418.00
Original price CA$558.00 - Original price CA$558.00
Original price
CA$558.00
CA$558.00 - CA$558.00
Current price CA$558.00

Player One Phoenix Filter Wheel -7x2"

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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Original price CA$558.00 - Original price CA$558.00
Original price
CA$558.00
CA$558.00 - CA$558.00
Current price CA$558.00
Original price CA$558.00 - Original price CA$558.00
Original price
CA$558.00
CA$558.00 - CA$558.00
Current price CA$558.00

Player One Phoenix Filter Wheel -7x50mm

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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Original price CA$558.00 - Original price CA$558.00
Original price
CA$558.00
CA$558.00 - CA$558.00
Current price CA$558.00
Original price CA$391.00 - Original price CA$1,679.00
Original price
CA$391.00 - CA$1,679.00
CA$391.00 - CA$1,679.00
Current price CA$391.00

QHYCCD CFW3

Available in 7 configurations across S, M, L, and XL sizes Supports 5, 7, or 9 filters from 1.25" to 2" and 50mm Thin profiles as slim as 15.5 mm ...

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Original price CA$391.00 - Original price CA$1,679.00
Original price
CA$391.00 - CA$1,679.00
CA$391.00 - CA$1,679.00
Current price CA$391.00
Original price CA$2,829.00 - Original price CA$2,829.00
Original price
CA$2,829.00
CA$2,829.00 - CA$2,829.00
Current price CA$2,829.00

SBIG STX 5 x 65mm Square Filter Wheel

Holds 5 individual 65mm square filters Enables use of integrated guiders on SBIG STX cameras Directly mounts to SBIG STX series cameras (STXL with...

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Original price CA$2,829.00 - Original price CA$2,829.00
Original price
CA$2,829.00
CA$2,829.00 - CA$2,829.00
Current price CA$2,829.00
Original price CA$2,689.00 - Original price CA$2,689.00
Original price
CA$2,689.00
CA$2,689.00 - CA$2,689.00
Current price CA$2,689.00

SBIG STX 7 x 50mm Square Filter Wheel

Holds 7 unmounted 50mm square filters Directly mounts to SBIG STX and select Aluma cameras Allows for off-axis guiding in front of the filters Con...

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Original price CA$2,689.00 - Original price CA$2,689.00
Original price
CA$2,689.00
CA$2,689.00 - CA$2,689.00
Current price CA$2,689.00
Original price CA$56.00 - Original price CA$56.00
Original price
CA$56.00
CA$56.00 - CA$56.00
Current price CA$56.00

Starizona Filter Slider - Extra Filter Drawers

Enables rapid filter changes for Starizona Filter Sliders Holds one standard 2-inch mounted filter Compatible with standard 48mm filter threads (M...

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Original price CA$56.00 - Original price CA$56.00
Original price
CA$56.00
CA$56.00 - CA$56.00
Current price CA$56.00
Original price CA$209.00 - Original price CA$209.00
Original price
CA$209.00
CA$209.00 - CA$209.00
Current price CA$209.00

Starizona Filter Slider for RASA 8 & ZWO Cooled Cameras

Enables fast filter changes on the Celestron RASA 8 Designed for ZWO cooled cameras with 6.5mm back focus Accepts standard 2" mounted filters Ultr...

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Original price CA$209.00 - Original price CA$209.00
Original price
CA$209.00
CA$209.00 - CA$209.00
Current price CA$209.00
Original price CA$181.00 - Original price CA$181.00
Original price
CA$181.00
CA$181.00 - CA$181.00
Current price CA$181.00

Starizona HyperStar Filter Slider Upgrade

Adds a convenient 2" filter drawer to your HyperStar Includes both M42 and M54 threaded camera plates Provides an adapter for cameras requiring 17...

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Original price CA$181.00 - Original price CA$181.00
Original price
CA$181.00
CA$181.00 - CA$181.00
Current price CA$181.00

Choosing a Filter Wheel

  • Filter size: 1.25-inch or 31 mm for sensors up to about 4/3-inch. 36 mm for APS-C at short distance. 2-inch or 50 mm for APS-C and full frame.
  • Number of positions: Five covers LRGB plus one. Seven or eight leave room for SHO narrowband and a dark or clear slot.
  • Thickness: A thin wheel leaves more back-focus for an off-axis guider and spacers. Low-profile models help with tight correctors.
  • Camera integration: Some wheels bolt directly to a matching camera, which removes a connection and helps with tilt.

Filter Drawer or Wheel?

A drawer is light, thin and inexpensive, and suits colour cameras. A wheel is the right choice for mono cameras running multi-filter sequences. Some drawers can be combined with an off-axis guider to save back-focus.

Filter Wheels: Frequently Asked Questions

Which filter size do I need?

It depends on sensor diagonal and the distance from filter to sensor, plus your focal ratio. Send us your camera and wheel and we will calculate it.

Do I need to refocus for each filter?

With a parfocal set, the shift is small, but narrowband and broadband often differ slightly. An electronic focuser with filter offsets handles this automatically.

Choosing a filter wheel?

Send us your camera and corrector. We will size the filters and check the back-focus.