The ZWO new Nikon-T2-Ⅱ adapter is independently developed by ZWO. It’s composed of a 29mm new Nikon-T2 adapter and a 5mm T2 extender, and suitable for all ASI cameras except full frame cameras like ASI6200 and ASI2400.
You can use 2″ IR-CUT filter with the adapter.
1. With ASI cooled cameras (ASI533/183/294/1600/071/2600)
2. With ASI non-cooled cameras
ASI1600/294/183/174 (17.5mm back focus length)
ASI178/385/462/290/224/120 (12.5mm back focus length)