Suitable for cameras which back focus distance is 12.5MM or 17.5mm
This new ZWO-EOS-T2-Ⅱ adapter has two parts (EOS-T2 adapter and 5mm length T2-extender), suitable for all ASI cameras
This new type is unadjustable. EOS-T2 support Canon EF lens.
EOS-T2 adapter without T2-extender is suitable for 17.5mm backfocus distance ASI cameras such like Cooled cameras and ASI174 ASI294 ASI183 ASI1600 ASI533 ASI2600 except ASI6200 and ASI2400
EOS-T2 adapter with the 5mm T2-extender, suitable for all 12.5mm backfocus ASI cameras such like ASI120 ASI224 ASI290 ASI178 ASI385 ASI462.
You can use 2″ IR-CUT filter with the adapter.