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Tiroirs à filtre

A filter drawer is the sensible middle ground between screwing filters on and off in the dark and committing to a full filter wheel. It sits permanently in the imaging train at a fixed thickness, and filters slide in and out through a light-tight slot without disturbing focus, spacing or camera rotation. David Astro carries filter drawers in Canada, held in our Canadian warehouse.

Because it stays in the train, its thickness becomes part of your permanent back-focus. Send us your camera and corrector and we will work the spacing out.

Filtres

Askar Multifunctional Filter Drawer
CA$229.00 - CA$229.00
CA$229.00
CA$229.00 - CA$229.00
CA$229.00

Askar Multifunctional Filter Drawer

ASK-ASKAR54FD
2 en stock

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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CA$229.00 - CA$229.00
CA$229.00
CA$229.00 - CA$229.00
CA$229.00
Baader Planetarium Baader FCCT 1 Filter Holder for RASA 8" & 77mm QHY Cameras
CA$430.00 - CA$430.00
CA$430.00
CA$430.00 - CA$430.00
CA$430.00

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

BAA-2459070

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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CA$430.00 - CA$430.00
CA$430.00
CA$430.00 - CA$430.00
CA$430.00
Baader Planetarium FCCT Filter Holder Set: 4x 2" (Ø 47.4 mm) – 3D-printed
CA$188.00 - CA$200.00
CA$188.00 - CA$200.00
CA$188.00 - CA$200.00
CA$188.00

Baader Planetarium FCCT Filter Holder Set: 4x – 3D-printed

Options available

Set of 4 individual filter holders Designed for the Baader FCCT system Available for unmounted 31mm, 36mm (2mm thick) or 2-inch (Ø 47.4 mm) filter...

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CA$188.00 - CA$200.00
CA$188.00 - CA$200.00
CA$188.00 - CA$200.00
CA$188.00
Baader Planetarium FCCT Filter Holder 2" (Ø 47.4mm) – 3D-printed
CA$56.00 - CA$59.00
CA$56.00 - CA$59.00
CA$56.00 - CA$59.00
CA$56.00

Baader Planetarium FCCT Filter Holder – 3D-printed

Options available

Designed for the Baader FCCT System Available for unmounted 31mm, 36mm and 2" (Ø 47.4mm) filters Integrated Neodymium magnets for secure, repeatab...

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CA$56.00 - CA$59.00
CA$56.00 - CA$59.00
CA$56.00 - CA$59.00
CA$56.00
Baader Planetarium UFC Protection – Dark-Slider, 3D-printed
CA$44.00 - CA$44.00
CA$44.00
CA$44.00 - CA$44.00
CA$44.00

Baader Planetarium UFC Protection – Dark-Slider, 3D-printed

BAA-2459197

STL files for 3D printing Designed for the Baader UFC System Creates a light-tight dark slide Essential for dark frame calibration Free download w...

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CA$44.00 - CA$44.00
CA$44.00
CA$44.00 - CA$44.00
CA$44.00
Baader Planetarium UFC Protection – Slider-Seal, 3D-printed
CA$44.00 - CA$44.00
CA$44.00
CA$44.00 - CA$44.00
CA$44.00

Baader Planetarium UFC Protection – Slider-Seal, 3D-printed

BAA-2459196

Free to download STL files for 3D printing Designed for the Baader Planetarium UFC System Protects filter sliders from dust and damage Licensed un...

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CA$44.00 - CA$44.00
CA$44.00
CA$44.00 - CA$44.00
CA$44.00
CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00

Baader Tiroir à Filtre UFC AUX - Filtre D 31mm (requiert UFC-RD50)

BAA-2459151

Baader UFC 31 mm AUX-Filtre-Holder Accepte les filtres ronds non montés de 31 mm Nécessite 1 curseur UFC-RD50 (2459113) Se monte dans le curse...

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CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00

Baader Tiroir à Filtre UFC AUX - Filtre D 36mm (requiert UFC-RD50)

BAA-2459152
1 en stock

Baader UFC 36 mm AUX-Filtre-Holder Accepte les filtres ronds non montés de 36 mm Nécessite 1 curseur UFC-RD50 (2459113) Se monte dans le curse...

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CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00

Baader Tiroir à Filtre UFC AUX - 1.25" (Nécessite UFC-RD50)

BAA-2459153
1 en stock

Baader UFC 1¼" AUX-Filter-Holder Accepte les filtres 1¼" montés Nécessite 1 curseur UFC-RD50 (#2459113) Se monte dans le curseur UFC-RD50, qui...

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CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00
CA$75.00 - CA$75.00
CA$75.00
CA$75.00 - CA$75.00
CA$75.00

Baader Tiroir à Filtre UFC - Filtre Carré 50mm

BAA-2459114

Baader UFC Curseur de filtre / Récipient de filtre 50x50 Accepte les filtres carrés 50x50 mm non montés (jusqu'à 4 mm d'épaisseur) Se glisse da...

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CA$75.00 - CA$75.00
CA$75.00
CA$75.00 - CA$75.00
CA$75.00
CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00

Baader Tiroir à Filtre UFC - Filtre 2" Monté

BAA-2459112

Baader UFC 2" Curseur de filtre / Conteneur de filtre M48 convient aux filtres 2" (M48) montés sur cellule se glisse dans la base du filtre UFC...

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CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00

Baader Tiroir à Filtre UFC - Filtre Rond Non Monté 50mm

BAA-2459113

Glissière de filtre Baader UFC D50.4 Accepte les filtres ronds non montés de 50,4 mm (pour Filtre-Ø 50,0 mm jusqu'à 50,5 mm) Se glisse dans la ...

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CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00
CA$85.00 - CA$85.00
CA$85.00
CA$85.00 - CA$85.00
CA$85.00

Baader Base du Changeur de Filtre Universel (UFC)

BAA-2459110
1 en stock

Base Baader UFC (chambre de filtre) pour curseurs de filtre 2" / 50,4 / 50x50 Côté télescope : avec pince réceptrice à queue d'aronde S70 Côté...

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CA$85.00 - CA$85.00
CA$85.00
CA$85.00 - CA$85.00
CA$85.00
CA$40.00 - CA$40.00
CA$40.00
CA$40.00 - CA$40.00
CA$40.00

Player One Extra Filter Drawer Holder - 1.25"

POA-FD-H1.25
1 en 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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CA$40.00 - CA$40.00
CA$40.00
CA$40.00 - CA$40.00
CA$40.00
CA$40.00 - CA$40.00
CA$40.00
CA$40.00 - CA$40.00
CA$40.00

Player One Extra Filter Drawer Holder - 2"

POA-FD-H2
2 en 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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CA$40.00 - CA$40.00
CA$40.00
CA$40.00 - CA$40.00
CA$40.00
CA$208.00 - CA$208.00
CA$208.00
CA$208.00 - CA$208.00
CA$208.00

Player One Filter Drawer MAX - 2"

POA-FD-MAX
4 en 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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CA$208.00 - CA$208.00
CA$208.00
CA$208.00 - CA$208.00
CA$208.00
CA$194.00 - CA$194.00
CA$194.00
CA$194.00 - CA$194.00
CA$194.00

Player One Filter Drawer MINI

POA-FD-MINI
4 en 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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CA$194.00 - CA$194.00
CA$194.00
CA$194.00 - CA$194.00
CA$194.00
SVBONY SV226 M42 Filter Drawer
CA$60.00 - CA$60.00
CA$60.00
CA$60.00 - CA$60.00
CA$60.00

SVBONY SV226 M42 Telescope Filter Drawer

SV-W9184A

Magnetic drawer for rapid filter changes CNC-molded integrated body for light-leak prevention Native M42x0.75 threads for common cameras and reduc...

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CA$60.00 - CA$60.00
CA$60.00
CA$60.00 - CA$60.00
CA$60.00
SVBONY Filter Drawer for OAG | SVBONY SV226P
CA$63.00 - CA$63.00
CA$63.00
CA$63.00 - CA$63.00
CA$63.00

SVBONY SV226P Telescope Filter Drawer for Off-Axis Guider (OAG)

SV-W9184D
1 en stock

Supports both 1.25" and 2" filters in one drawer 12-point M2.5 threaded mounting for guide camera stability Includes M42, M48, and M28.5 threads f...

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CA$63.00 - CA$63.00
CA$63.00
CA$63.00 - CA$63.00
CA$63.00
CA$543.00 - CA$543.00
CA$543.00
CA$543.00 - CA$543.00
CA$543.00

William Optics Elite Drawer OAG Kit

WO-M-OAG-ED
4 en stock

Integrates Off-Axis Guider and Filter Drawer 37.5 mm Optical Length Supports M48, M54, and M68 Connections Magnetic M48 Filter Holder 336 g (11.85...

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CA$543.00 - CA$543.00
CA$543.00
CA$543.00 - CA$543.00
CA$543.00
CA$22.00 - CA$22.00
CA$22.00
CA$22.00 - CA$22.00
CA$22.00

Bague d'adaptation de filtre ZWO 2 "-1,25"

ZWO-2-1.25FL
7 en stock

La bague d'adaptation du filtre qui vous permet d'utiliser le filtre avec une taille de filetage de filtre plus petite. Pas besoin d'acheter un ...

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CA$22.00 - CA$22.00
CA$22.00
CA$22.00 - CA$22.00
CA$22.00
CA$139.00 - CA$139.00
CA$139.00
CA$139.00 - CA$139.00
CA$139.00

ZWO Tiroir à Filtre pour Objectif EOS

ZWO-FD-EOS
10 en stock

Le nouveau tiroir à filtres pour objectif EOS, d'une épaisseur de 26,5 mm, est conçu indépendamment par ZWO et spécialement conçu pour correspondr...

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CA$139.00 - CA$139.00
CA$139.00
CA$139.00 - CA$139.00
CA$139.00
CA$139.00 - CA$139.00
CA$139.00
CA$139.00 - CA$139.00
CA$139.00

Tiroir de filtre ZWO pour objectif Nikon

ZWO-FD-NIKON
10 en stock

Nouveau tiroir de filtre d'une épaisseur de 29 mm pouvant être utilisé pour transporter un filtre de 2 pouces et connecter des caméras refroidies ...

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CA$139.00 - CA$139.00
CA$139.00
CA$139.00 - CA$139.00
CA$139.00
CA$111.00 - CA$111.00
CA$111.00
CA$111.00 - CA$111.00
CA$111.00

ZWO Tiroir à filtre V2 - M42

ZWO-FD-M42-II
47 en stock

Changez facilement les filtres montés de 2 pouces Élimine les fuites de lumière Compatible avec la plupart des filtres montés de 2" Longueu...

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CA$111.00 - CA$111.00
CA$111.00
CA$111.00 - CA$111.00
CA$111.00

Filter Drawers Versus Wheels

Both hold filters in the light path. The difference is whether a computer changes them or you do, and how much back-focus each consumes.

  • Fixed optical thickness: The drawer body stays in the train, so once your spacing is set it never changes regardless of which filter is loaded.
  • No rotation or spacing disturbance: Swapping filters does not require unthreading anything, so camera angle and back-focus are preserved exactly.
  • Slimmer than a wheel: Typically consumes considerably less back-focus than a motorized wheel, which matters in tight imaging trains.
  • Manual operation: You must be present to change filters, which rules out unattended multi-channel sequences.
  • Ideal for one-shot colour: A colour camera user typically alternates between a dual-band and a UV/IR cut filter, which is exactly two changes a drawer handles perfectly.
  • Filter sizes: Available for common mounted sizes and unmounted formats, with the same sensor-diagonal sizing rules as a wheel.

Why Choose David Astro for Filter Drawers

A drawer is the right answer for a specific kind of imager, and the wrong one for another. We will tell you which you are.

  • Honest wheel-versus-drawer advice: If you intend narrowband monochrome sequences that run all night, we will say a wheel is the correct purchase rather than sell you the cheaper option.
  • Back-focus calculated with the drawer in place: We supply the full spacing list treating the drawer as a permanent element.
  • Filter size checked: We size against sensor diagonal and filter-to-sensor distance so corners are not clipped.
  • Authorized dealer: Genuine products with manufacturer warranty, in Canadian stock.
  • Ships from Canada: No duties or brokerage fees for Canadian buyers.

Filter Drawers in Canada — Frequently Asked Questions

Drawer or filter wheel?
A drawer if you use one or two filters and are present at the telescope, which describes most one-shot colour imagers. A wheel if you run monochrome LRGB or narrowband sequences unattended.
Does changing a filter shift focus?
Slightly, if the filters differ in thickness — glass shifts focus by about a third of its thickness. Using filters of the same thickness in a drawer keeps this negligible.
Is a drawer light-tight?
Good designs are, with a sprung or magnetic closure. It is worth checking with a test frame after installation, since a light leak here shows up as a gradient rather than an obvious flare.
How much back-focus does it use?
Typically considerably less than a motorized wheel, often around 20 mm or less depending on design. We will include the exact figure in the spacing calculation we supply.

Simplifying your imaging train?

Send us your camera and corrector and we will spec the drawer and spacing. Ships from our Canadian warehouse.