ZWO EFW 7 x 36mm

The new ZWO Electronic Filter Wheel 7 x 36mm features a larger body and newly-added screw holes to give you a more flexible way of connecting ASI cameras such as the ASI2600MM Pro.

The EFW 7 x 36mm is CNC machined and has an optical thickness of only 20mm. High quality stepper motors from NPM Japan make this a very reliable solution. This model can take 7 x 36mm unmounted filters.

The power absorption of the EFW is only 120mAh @ 5V so any USB cable can power it up.

How to install the filters?

To install 36mm filters:

1. Take the back cover off
2. Lay the wheel down flat
3. Hold the filters by the very edges and lay them on the filter wheel slots
4. Lock each filter with a "mask" and a set of M2 screws
5. Put the cover back on

To use the filter wheel:

1. Install the ASCOM driver on your computer
2. Plug in the USB2.0 cable
3. On the Ascom options, select ZWO filter wheel (1) or ZWO Filter Wheel (2). There are two options to allow 2 filter wheels at the same time. 

1. 7 x 36mm EFW body
2. 1.25″ cover
3. 1.25" T2 nosepiece
4. 1.25″ holder (with cover and 2 screws)
5. T2-T2 adapter (male)
6. Filter masks
7. USB 2.0 cable (2m)
8. Phillips head screwdriver
9. M2 x 4 flat screws
10. Darkening ring set

55mm backfocus with APS-C cooled camera and standard OAG

55mm backfocus with APS-C cooled camera and OAG-L

55mm backfocus with APS-C cooled camera and no OAG (M42m-M48f 22.5mm extender sold separately)