Dark Clear Skies · SVBONY
SVBONY SV226 Filter Drawer | 1.25" & 2" Filters
Change mounted filters without dismantling the camera connection with the SVBONY SV226 filter drawer. Its magnetic sliders support 2-inch filters, with an adapter for 1.25-inch filters, in a 21mm-thick imaging accessory.
Side access to the imaging filter
The SV226 lets you withdraw the filter slider from the side of the imaging train while leaving the camera connection assembled. Magnetic retention helps seat the slider, and the side locking screw lets you adjust retention tension.
Connections and optical spacing
| Connection or dimension | Specification |
|---|---|
| Telescope side | M48 × 0.75 female |
| Camera side | M42 × 0.75 male |
| Mounted filter fittings | M48 × 0.75 / M28.5 × 0.6 female |
| Drawer thickness | 21mm |
| Body | CNC-machined aluminium |
Account for the drawer and any adapters when calculating the back-focus distance required by a reducer or flattener. A matching thread alone does not establish the correct camera spacing. The black body and seated drawer help limit unwanted light entering the filter position.
What is included
- One SV226 drawer frame.
- Two 2-inch filter sliders.
- One 2-inch-to-1.25-inch filter adapter.
- One M42 female-to-M48 male adapter.
- One plastic storage case.
Filters, telescope and camera are separate. The two sliders and reducing adapter let you prepare different mounted filter sizes for the supported holder.
Planning your imaging train
Check both telescope-side and camera-side threads, the available back focus and the filter cell thickness. This is the M42/M48 SV226 configuration; compatibility should not be inferred from the name of a different SV226-family drawer.
Product views and technical illustrations
Compatibility and setup
Check cell height before installation. SVBONY states that its F9147 variable polarising filters are too thick for the SV226 drawer. Confirm the required optical spacing for your exact telescope, corrector and camera combination.