FLI CFW5-7 Color Filter Wheel
Engineered for precision and reliability, the FLI CFW5-7 Color Filter Wheel features a robust aluminum mechanical architecture that provides a stable foundation for uncompromising astrophotography. Built with a high-accuracy, no-slip drive chain and stepper motor, it combines large-diameter pivot pins with precision-ground bushings for smooth and quiet operation. FLI filter wheels operate without internal homing lights, protecting imaging sensors from internal stray light interference.
【Key Features & Technical Highlights】
No-Slip Drive System: Features a precision no-slip drive chain driven by a stepper motor for accurate filter positioning.
No Internal Light Interference: Eliminates internal lights for homing mechanisms, ensuring zero stray light pollution on sensor frames.
Rugged Aluminum Construction: Built with an all-aluminum body, precision-ground pivot pins, and matched bushings for smooth, quiet, and reliable optical alignment.
Large Square Filter Capacity: Houses up to 7 positions for 50mm square filters (supports filter thickness from $1.0text{ mm}$ to $5.0text{ mm}$), tailored for high-end deep-sky imaging systems.
Standard Connectivity & Power: Features USB 2.0 interface, 12V power supply, and standard FLI optical/camera connections.
Specifications
| Parameter | Details |
| Product Model | FLI CFW5-7 |
| Filter Shape | Square |
| Positions | 7 |
| Recommended Filter Size | 50mm Square ($pm 0.125text{ mm}$) |
| Filter Thickness Range | $1.0 - 5.0text{ mm}$ |
| Internal Wheels | 1 |
| Overall Thickness | 21.6mm (less motor) |
| Weight | $1.95text{ kg}$ ($4.3text{ lbs}$) |
| Body / Wheel Material | Aluminum |
| Interface & Power | USB 2.0 / DC 12V |
| Optical Side Connection | 3.005" 24 UNS-2B |
| Camera Side Connection | 2.930" pocket (mates to FLI dovetail) |
