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ZWO 5x 2'' Electronic Filter Wheel  (EFW)
 ZWO 5x 2'' Electronic Filter Wheel  (EFW)ZWO 5x 2'' Electronic Filter Wheel  (EFW) 

ZWO 5x 2" Electronic Filter Wheel (EFW)

£296.00✓ 2 year warranty


Usually shipped 15-20 working days.

About this product

Model:  zwo_efw-5x2
Part Number:  ZWO-EFW-5x2

New ZWO 5x 2" electronic filter wheel (EFW).

The filter wheel body is CNC machined from a single block of aircraft grade aluminium for maximum strength and rigidity. It also features a quality Japanese-made stepper motor.  

Only 20mm thickness.

Also available in 7x 2" variant. 


  • Supports 5x 2" mounted or 50.4mm (+/- 0.5mm) unmounted filters.
  • Quality Japanese-made stepper motor.
  • Rotates in both directions for faster filter selection.
  • CNC-machined from a single block of aircraft grade aluminium.
  • Powered by USB - max consumption around 120ma@5v.
  • ASCOM driver.

There is no need for multiple cables to power this wheel, just one USB cable will suffice. The maximum power requirement is approximately 120mAh @ 5V, so it can be operated from the Cooled camera's USB2.0 port.

When connected to a ZWO ASI6200, the distance from the filter to the sensor is about 18mm

ZWO recommend their 2″ RGBL filters which work well with the ASI6200MM Pro camera and provide nearly 1:1:1 RGB colour balance.

The requirements shown below must be met if using non-ZWO 2” filters. 

Mechanical Drawing

What's in the box

  • Filter wheel body
  • USB2.0 – 2m cable
  • Bag of M2.5*6 screws (6pcs / bag)
  • Bag of filter masks for 50mm filters (7pcs / bag)
  • Phillips screwdriver
  • Bag of M2*4 flat screws (23pcs / bag)
  • M54M-M48F adapter
  • M54M-M42F adapter

Downloads / Manuals

The following manuals and downloads are available for this product:


ZWO Software and Drivers


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