Want to quickly switch between LRGB or narrowband filters when doing astrophotography with a monochrome ASI camera? The ZWO EFW 8×1.25 Filter Wheel makes this possible fully automatically and without image shift.
The stepper motor in this filter wheel is precise, quiet, and comes from the renowned Japanese brand NPM. Thanks to the short distance of 10 mm between filter and sensor, there’s no vignetting, even with fast optics (like f/4 or f/5).
This filter wheel is ideal for users of lighter ASI cameras or compact setups where weight and space are important factors.
Features:
- Capacity: space for 8 1.25″ filters
- USB-powered (no external power needed)
- Fully integrated with ZWO ASI cameras and ASIAIR systems
- Only 20 mm optical length
- Lightweight (400 grams), CNC-machined aluminum
Included:
✓ USB 2.0 cable
✓ Mounting screws
✓ T2 thread adapters
What You Can Do with It
✓ Fully automatic switching between up to 8 filters
✓ Use with LRGB, H-alpha, SII, or OIII filters
✓ No focus shift when changing filters
✓ Compatible with ASIAIR, NINA, and other software
✓ Perfect for compact astrophotography setups
Specifications
| Property | Value |
|---|---|
| Filter size | 1.25 inch |
| Number of filters | 8 |
| Camera side connection | T2 (M42x0.75) |
| Telescope connection | T2 (M42x0.75) |
| Optical length | 20 mm |
| Power supply | USB 2.0 |
| Power consumption | 150 mA |
| Motor | Stepper motor (NPM) |
| Material | CNC aluminum |
| Weight | approx. 400 grams |
| Series | ZWO EFW |
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