ZWO Nikon Lens Adapter for 2" EFW Filter Wheel - EFW2-NIKON

 The ZWO EFW2-NIKON adapter was designed by ZWO in order to connect a Nikon lens with a ZWO EFW2 2" filter wheel.  This short adapter takes up 14 mm of back focus and can only work with ASI cooled cameras with 12.5 mm back focus, such as the ASI16200, ASI2400 and ASI2600.

The thread of the interface is M54 and so therefore does not fit the 1.25" EFW electronic filter wheels.

HOW TO ATTACH THE ADAPTER:

1. Gather together the ASI camera, Nikon lens adapter, Nikon lens, 2” EFW, screwdriver and a hexagon wrench;

2. The sensor tilt adapter needs to be removed before you connect the camera to the 2” EFW.  Use the hexagon wrench that comes with the camera to remove the sensor tilt adapter;

3. Use the screwdriver to remove the back cover of the EFW2;

4. Disassemble the filter wheel carousel (Note: Please do not disassemble or move the central screw of this carousel, otherwise the EFW will be damaged);

5. Align the four screw holes of the EFW with the four corners of the camera chip as shown below. Tighten the screws;

6. Reassemble the EFW;

7. Mount the Nikon lens adapter on the back cover of the EFW;

8. Connect the Nikon lens to the adapter.

9. All done.