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Product Description
The new 36mm EFW (Electronic Filter Wheel) independently developed by ZWO for astronomical mono cameras. With the larger body and the newly-added screw holes on the covers, it will give a much easier and more fixable way to connect to ASI cameras.
There are 7 slots inside the EFW and we recommend you use the ZWO 36mm LRGB and SHO filter set with it.
The body is CNC milled from an aircraft graded aluminum block. It is made with high quality and thin with the thickness of only 20mm. The heart of the EFW uses the quality stepmotors produced by NPM, Japan, which can be very trustworthy. When photographing, you can rotate the EFW in both counter clockwise or clockwise direction for filter selection. The whole operation process is rather convenient and efficient.
Comparing to the original 36mm EFW, you may find the new EFW has a bigger size. The screw holes on the front and back covers shall not only allow us directly connecting the 36mm EFW to the camera and bringing the filters closer to the camera sensor, also making the it possible to match it with M68 OAG.
There are no need for multiple cables to power this filter wheel up, just one USB cable does the trick. The power consumption of this EFW is approximately 120mAh @5V, which can be operated from the Cooled CMOS’s USB hub.
All ZWO 36mm filters can be perfectly supported by this EFW. But if you use filters from third party, then please make sure the thickness of the filter should be between 1.5mm and 3.0mm (the thickness of the filter frame is 1.8mm).
Specifications
Customer Reviews
I ordered this CFW in the hopes that it would work with my non-ZWO CCD camera. I bought the camera in 2012 with a 5 position wheel which is no longer enough. The original brand wanted $1200 more than the cost of this model which is nuts. This attached nicely via a T2 coupler. It can be controlled with MaxIm, EKOS, NINA or any ASCOM software! Bottom line is it works well, seems nicely made and works with all my software. Or with ASI Air when I upgrade the camera. No complaints, recommended!
Product was delivered in a timely manner and well protected for the bumpy ride. A changeover to a larger camera sensor forced the EFW change from the previous version, essentially converting to the entire ZWO ecosystem. But there's future use for the old EFW in the works. Tested and all is good. Now, how about some clear winter skies for a change??
My first filter wheel, works flawlessly and simple with ASIAIR PRO
Picked this filter wheel up to use with my Optolong LRGB SHO 36mm filters. As soon as I took it out of the box I could tell it was high quality. Nice heavy metal finish. Filter installation was rather straightforward and the filter wheel included all required tools. Simple plug and play, no issues with my ASI Air. Didn't have to calibrate or anything, just worked out of the box!
10/10
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