SVBONY SV226 Telescope Filter Drawer - Dual Magnetic Holders

Our review of the SVBONY SV226 telescope filter drawer finds it best suited to amateur and enthusiast astrophotographers who need a compact, versatile way to swap filters at the telescope focus. The single biggest reason to consider the SV226 is its combination of a dual drawered design and magnetic retention, which lets users load both 1.25' and 2' filters and switch quickly in the dark without repeated screwing and unscrewing. Build quality, CNC construction and an included M42 to M48 adapter further make it useful with cameras and common accessories.

Key Features

• High compatibility: Works with a wide range of accessories and cameras such as ZWO cameras and many common filter brands so it fits into existing astrophotography rigs.
• Double magnetic retention: Magnets replace traditional screw rotation to provide faster, more convenient filter changes at the eyepiece or camera side.
• Two filter holders: Holds both 2' and 1.25' filters simultaneously so you can pre-load two filters and swap without re-threading in the dark.
• Locking function: Adjustable lock screw reduces gap and light leaks during long exposures, improving protection against stray light.
• M42-M48 adapter included: Male camera-side thread and female filter thread let you mix and match cameras and reducers that use these common thread sizes.
• CNC integrated molding: Precision production enhances durability and keeps the draw-er stable on the optical path.

Who It's For

The SV226 is ideal for backyard deep sky imagers and planetary shooters who want a compact filter drawer that reduces fiddling during an imaging session. It suits users who already own M42 or M48 threaded cameras or focal reducers and who value quick filter swaps and the ability to hold two filters at once.

Those who should look elsewhere include observers who require permanently sealed, heavy-duty filter wheels for automated multi-filter runs or users who need an integrated motorized filter changer. Also, anyone who is uncomfortable checking small magnets should consider alternatives with screw retention.

Pros & Cons

Pros

• Solid CNC construction and a compact 21mm thickness that fits many optical chains.
• Convenient plug-and-play dual holders for 2' and 1.25' filters reduce handling in the dark.
• M42 to M48 adapter increases compatibility with a variety of cameras and accessories.
• Lock screw helps limit light leaks during long exposures.

Cons

• Magnet strength feedback is mixed; some users report magnets can fall out, so occasional checking is advised.
• 21mm thickness is fixed and may affect back focal length compatibility with some optical setups.

Specifications

Product Type	Telescope filter drawer
Filter sizes supported	2' and 1.25'
Adapter thread	M42 internal to M48 external
Thickness	21mm
Construction	CNC integrated molding
Retention	Double pair of magnets with lock screw
Compatible accessories	ZWO cameras, common eyepieces and many filter brands

Our Verdict

The SVBONY SV226 is a practical, affordable filter drawer for amateur astrophotographers who want faster filter changes and broad compatibility without adding a motorized wheel. Its dual holders, M42-M48 adapter and locking screw make it good value for backyard imaging, though users should inspect magnet fitment and confirm 21mm back focal fit for their optical train.

Frequently Asked Questions

Will the drawer accept both 1.25' and 2' filters?
Yes; the SV226 is designed with two holders that accommodate both 1.25' and 2' filters so you can keep two filters loaded.

Can I connect my camera directly?
Yes; an M42 internal to M48 external adapter is included so many cameras and focal reducers with those threads can be attached.

Are the magnets reliable for long exposures?
The magnets are intended to simplify mounting and are paired with a lock screw to limit light leaks, but user reports on magnet retention are mixed so a quick pre-session check is recommended.