- Express delivery within the EU
- Available - Ready to ship
- Available - Shipping lead time
This ZWO Motorised Filter Wheel is designed to hold 5 unmounted 2" filters.
ZWO´s latest EFW (Electronic Filter Wheel) provides a larger clear aperture than previous models but still only weighs 500g. The filter wheel body is CNC milled from aircraft grade aluminum and is only 20mm thick.
Motor drive:
The core part of the EFW is the stepper motor which has reliable performance and quality that comes from NPM, Japan. This 2" Electronic Filter Wheel can be rotated both clockwise and counter clockwise for the desired filter selection.
There is no need of multiple cables to power this wheel up, just one USB cable does the trick. The maximum power supply of this EFW is approximately 120 mA @ 5 V, which can be operated from most cooled Astrocameras with a USB2.0 port.
Filters:
Accepts 2″ thread-in filters and 50.4 mm ±0.5 mm unmounted filters.
When connected to an ASI6200, the distance from the filter to the sensor is about 18 mm.
Specs:
- Type: Motorized filter wheel
- Filter size: 2" or 50.4±0.5 mm
- Filter positions: 5
- Body material: Aircraft graded aluminum, CNC milled
- Body thickness: 20 mm
- Working distance from filter to sensor: 18 mm with ASI6200MM Pro camera
- Telescope connection: M54x0.75 female (M48x0.75 and M48x0.75 via supplied adapter)
- Camera connection: Screws
- Drive: Stepper motor from NPM, Japan
- Control mode: ASCOM and SDK
- Electric connection: USB2.0
- Power requirement: 120 mA @ 5 V
- Weight: 500g
Download the EFW Manual here
REPUBLIC OF IRELAND

Est. Delivery Time:
5 - 10 Working days after dispatch
Standard Tracked Delivery:
Republic of Ireland Nationwide: from €8.95 upwards
Note: The exact shipping charge will depend on the size of your order and will be calculated at the checkout. Some large and bulky Telescopes may also be shipped to you directly from our Manufacturer. This is a special agreement we have with our suppliers to ensure our customers enjoy the cheapest possible shipping rates for large bulky Telescopes.
For some large Telescopes & orders, it may require special handling instructions and in this case you will be asked at the checkout to contact us for a special delivery quotation.
Mainland EUROPE (EU)

Est. Delivery Time:
3 - 5 Working days after dispatch
Standard Tracked Delivery:
Mainland Europe: from €4.95 upwards
Note: The exact shipping charge will depend on the size of your order and will be calculated at the checkout. Some large and bulky Telescopes may also be shipped to you directly from our Manufacturer. This is a special agreement we have with our suppliers to ensure our customers enjoy the cheapest possible shipping rates for large bulky Telescopes.
For some large Telescopes or orders, it may require special handling instructions and in this case you will be asked at the checkout to contact us for a special delivery quotation.
EU Additional Info:
If your country is not listed below please contact us for a specialised quote.
Standard EU Delivery Regions:
Germany, France, Belgium, Poland, Luxembourg, Netherlands, Denmark, Portugal, Spain, Austria, Italy, Poland, Croatia, Malta, Greece, Monaco Norway, Sweden & Switzerland.
NON EU Regions

Est. Delivery Time:
7 - 14 Working days after dispatch
Standard Tracked Delivery:
Non-EU: from €8.95 upwards
Note: The exact shipping charge will depend on the size of your order and will be calculated at the checkout. Some large and bulky Telescopes may also be shipped to you directly from our Manufacturer. This is a special agreement we have with our suppliers to ensure our customers enjoy the cheapest possible shipping rates for large bulky Telescopes.
For some large Telescopes or orders, it may require special handling instructions and you will be asked at the checkout to contact us for a special delivery quotation.
Standard NON-EU Delivery Regions:
United Kingdom, Switzerland & Norway
Note: For Non-EU countries, in some cases additional Tax or Customs Duty fees may apply on delivery. Unfortunately this is outside of our control and this varies between different regions. For questions about Customs & Import fees or to find out if they apply in your region, please refer to your local Tax office for more information.
IMPORTANT: It is essential when placing an order, that you include a valid 'Contact Telephone Number' for the delivery address or for the person receiving the item. This is necessary to avoid potential delays, return delivery costs or problems with your delivery.
Shipping Disclaimer: All of our parcels are sent via a 3rd party registered courier service to ensure safe and prompt delivery. While we endeavor to ensure that all parcels are delivered within the specified time frame, 'Horizon Astronomy' can not be held responsible for delays due to adverse weather conditions or other courier/technical related issues outside of our control.