ZWO OAG-L-68 — Optical Splitter
ZWO OAG-L-68 Splitter for use with the ASI461 and this square wheel. ASI Mini guide camera sold separately; check the connections, focus, and prism position.
CHF 188.10
USB 2.0 motorized wheel with seven positions for 50 × 50 mm square filters. ASCOM and SDK control, for compatible large-format configurations.
CHF 440.10incl. Swiss VAT
Reference RAF-0024
Will be ordered for you
Timeframe: 10 days to 3 weeks
Estimated shipping: Entre le 20 et le 25 November 2026
This motorized wheel holds seven 50 × 50 mm square filters. It allows you to schedule filter changes during LRGB or narrowband sequences with a compatible monochrome camera, without opening the optical train between exposures.
The wheel shown here is the 1-kg USB 2.0 version documented by ZWO and Zumstein. It should not be confused with the 7×2-inch EFW models designed for round filters, nor with the new USB-C versions of the 25 series. The required filters are square, measuring 50 × 50 mm, and must be between 3 and 4 mm thick.
The body is CNC-machined from a solid block of aluminum, and the NPM stepper motor allows rotation in both directions. The USB 2.0 connection provides both control and power; the manufacturer specifically recommends connecting it to the USB 2.0 ports of cooled ASI cameras. Control is handled via ASCOM or the ZWO SDK.
This wheel is particularly suitable for large-format setups combining the OAG-L-68 splitter and the ASI461 camera. Check the interfaces and optical distances of your entire setup before assembly. Increasing the filter size does not eliminate the need to check the optical paths, tightness, and rigidity of all connections.
| Brand | ZWO |
|---|---|
| Positions | 7 |
| Filters | 50 × 50 mm squares |
| Filter Thickness | 3 to 4 mm |
| Weight | 1 kg |
| Connection and Power Supply | USB 2.0 |
| Control | ASCOM and SDK |
| Engine | NPM Step-by-Step Guide |
The manufacturer includes the wheel, two angled USB 2.0 cables (2 m and 0.5 m), a screwdriver, ten square filter covers, the blackout rings, and the hardware. The filters are not included with this wheel alone. Be sure to install the filters in a clean environment and follow the procedure for securing them with filter covers.
Documentation and Compatibility: ZWO official data sheet.
Here are a few accessories we've selected for this model, depending on your needs.
ZWO OAG-L-68 Splitter for use with the ASI461 and this square wheel. ASI Mini guide camera sold separately; check the connections, focus, and prism position.
