ZWO EFW Mini Filter Wheel 5x 1.25" / 31 mm – Product description
ZWO EFW Mini Filter Wheel 5x 1.25" / 31 mm belongs to the Filter, Filter Wheels and Filterslider range. Compact motorised USB filter wheel for five mounted 1.25-inch filters or five unmounted 31 mm filters.
Key product details
- LRGB and narrowband imaging
- Monochrome astronomy cameras
- Compact imaging systems with limited working distance
- Five filter positions
- For mounted 1.25-inch or unmounted 31 mm filters
- Motorised stepper drive
Product overview
The ZWO EFW Mini provides automatic filter changes for astrophotography while remaining very compact. Its short optical length makes it easier to integrate into systems with limited backfocus.
Suitable applications
- LRGB and narrowband imaging
- Monochrome astronomy cameras
- Compact imaging systems with limited working distance
Included equipment
- Five filter positions
- For mounted 1.25-inch or unmounted 31 mm filters
- Motorised stepper drive
- USB powered
- T2 connection on camera and telescope sides
- Approx. 20 mm optical length
- Weight under 300 g
Vignetting and sensor size
The filters sit close to the camera sensor. With fast optics, unmounted 31 mm filters are often preferable to small mounted filters when minimising vignetting.
Practical note
Before buying, calculate sensor size, focal ratio and filter distance to determine the most suitable filter format.
Selection note
Related products: Mount accessories at Optikshop24 · Telescope accessories at Optikshop24.
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