CFW3 XL
QHY
From $799.00
2 stores
In stock
The QHY CFW3 XL is a 3rd generation motorized filter wheel designed for astrophotography with interchangeable carousels supporting either nine 2-inch/50mm round filters or seven 50mm square filters. Featuring an ultra-thin hybrid stepper motor with friction drive for zero backlash operation, the wheel intelligently rotates bidirectionally to reach any filter position via the shortest path, saving time during imaging sessions. With its compact 21.5mm thickness, dual USB/4-pin control modes, and tricolor LED position indicators, the CFW3 XL integrates seamlessly into imaging trains while preserving critical back focus distance.
Specifications
| Thickness | 21.5 in |
| Filter Positions (Square) | 7 |
| Motor Type | Ultra-thin Hybrid Stepper Motor |
| Material | Precision CNC-Machined Aluminum |
| Maximum Filter Thickness | 10 mm |
| LED Indicator | Tricolor Position Indicator |
| Back Focus Consumed | 21.5 mm |
| Drive type | Friction Drive with Zero Backlash |
| Firmware | Open Source Arduino Compatible |
| Filter Positions (Round) | 9 |
| Filter Size (Square) | 50 x 50 mm |
| Power Supply | 12 V |
| Filter Size (Round) | 2 inch / 50 mm |
| Weight | 1500 lb |
| Control Modes | USB and 4-Pin QHYCFW |