ZWO 7-Position Electronic Filter Wheel for 2-Inch Filters

  • 7 positions for round 2-inch thread-in or 50.4 +/-0.5 mm unmounted filters.
  • Thin and light at 20 mm and 650 g.
  • Paired well with the ASI6200 camera.

This 7-position electronic filter wheel--CNC-milled from aircraft-graded aluminum block--can fit round 2-inch thread-in or 50.4 mm +/-0.5 mm unmounted filters. A perfect pairing with the ASI6200 camera.

The wheel can be rotated counter-clockwise or clockwise for filter selection. Total thickness and weight are only 20 mm and 650 g. And just one USB power cable with a maximum power supply of 120mAh @ 5V is needed, which can be operated from the cooled CCD’s USB2.0 port.

When used with the ASI6200, filter-to-sensor distance is approximately 18 mm. ZWO's 2-inch LRGB filters work well with the camera, offering nearly 1:1:1 RGB color balance.


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  • Regular price $399.00

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ZWO 7-Position Electronic Filter Wheel for 2-Inch Filters




Back Focus18mm
Camera/Eyepiece Side ConnectionFemale M54x.75
Filter ShapeRound
Filter Size2"/50mm
Filter Slots7
Free ShippingYes
Scope Side ConnectionFemale M48x0.75
Customer Reviews
4.3 Based on 3 Reviews
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Filter Reviews:
Sam S.
United States United States

Unit is well built, very solid. The manufacturers ad says no driver necessary although none of my software would run it until I found a driver on the ZWO site.Have not gotten my filters yet but expect it to perform well as it operates properly with Astro Photography Tools.

A OPT Telescopes Customer
Bill G.
United States United States
Works well right out of the box

No trouble getting this up and running. Functions just fine using the USB 2.0 hub on the back of the ZWO camera although you’ll wish you had a shorter cable than the one they give you if you do this. Some of the mounted filters I have, when ******* in fully would scrape against the case as the wheel turned so I used one of the rings they supplied for keeping unmounted filters in place to act as a standoff and that worked fine!

Molly W.
United States United States
A couple problems at first, but working well now

Pros: - It's *very* quiet! I can barely hear it turn. Kind of cool. - Relatively fast at switching filters. - About the same size and weight as my Starlight Xpress 5-position 2-inch filter wheel. Impressive! - Fairly easy to add the filters. Cons: - I had a couple of really weird issues when I was first testing it out indoors, but it seemed to settle down and is now working properly.