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ZWO EFW MINI 5 x 31.8 mm / 31 mm Electronic Filter Wheel

ZWO EFW MINI 5 x 31.8 mm / 31 mm Electronic Filter Wheel

ZWO EFW MINI Electronic Filter Wheel supports both 5x1.25" filters or 5x31 mm filters. Weight 300 gr. Rotates in both counter clockwise or clockwise direction for filter selection.

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ZWO EFW MINI 5 x 31.8 mm / 31 mm Electronic Filter Wheel

ZW Optical (ZWO ASI)

ZWO-EFW-MINI

New product

ZWO EFW MINI Electronic Filter Wheel supports both 5x1.25" filters or 5x31 mm filters. Weight 300 gr. Rotates in both counter clockwise or clockwise direction for filter selection.

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209,00 €

-10,00 €

219,00 €

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ZWO EFW MINI 5 x 31.8 mm / 31 mm Electronic Filter Wheel

The smallest and most lightweight 1.25″ Electronic Filter Wheel in the world!

300g ONLY! Small than your hand!

The body is CNC machined from a full block of aircraft grade aluminium.

Very thin design, 20mm ONLY.

The step motor is the heart of the EFWmini, which is made by NPM from Japan. You can trust its quality and relability.

Supports both 5*1.25″ filters or 5*31mm filters.

The Electronic Filter wheel can be rotated in both counter clockwise or clockwise direction for filter selection.

Only one USB Cable is enough to power up the EFW, the max power consumption is around 120ma@5V, so you can connected it form the USB2.0 hub of our cooled cameras.

The distance between the filter and sensor is aroucnd 10mm when you connect it to ASI1600.

So 1.25″ filters won’t have vignetting up to F5 focal ratio scope and 31mm filter won’t have vigentting up to F2 lens.

ZWO new RGBL filters are recommended to work with ASI1600, it will offer nearly 1:1:1 RGB color balance.

What's in the box?

  1. EFWmini body
  2. 1.25″ cover
  3. T2 nosepiece
  4. 1.25″ holder(with cover and 2 screws)
  5. T2-T2 adapter(male)
  6. A bag of Spacers
  7. USB2.0 2m cable
  8. Phillips screwdriver
  9. A bag of M2 screws

Mechanical drawing

How to use it?

You just need to plugin the EFW mini with USB2.0 cable and install the ASCOM driver

There are ZWO Filter Wheel (1) and ZWO Filter Wheel (2) to select, you can use either one of them.

There are 2 ASCOM is for controling 2 EFWmini in one software.

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