ZWO Motorised Filter Wheel 5 x 2″

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 540g. 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 filter wheel, just one USB cable does the trick. The maximum power supply of this EFW is approximately 120mA @ 5V, 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.

Specs:

• Type: Motorized filter wheel
• Filter size: 2″ mounted or 50.4 ± 0.5mm unmounted (thickness 1.5 to 3.5mm)
• Filter positions: 5
• Telescope connection: M54x0.75 female (M48 x 0.75 and M42 x 0.75 via the supplied adapters)
• Drive type: Stepper motor
• Control mode: Via ASCOM, ASIAIR, ASIStudio, and ZWO SDK
• Driver installation: not necessary, driver-free design
• Optical length: 20mm optical path (from the M54 to M54 connection)
• Electrical connection: USB-C interface, USB2-0 standard
• Power requirement: 120mA @ 5V
• Body material: Aircraft graded aluminum (6061 alloy), CNC-milled
• Body thickness: 20mm
• Weight: 540g

Download the EFW Manual here