If you use 22.3 for normalization (歸一化) then the angle 6.7 shall be included. In your subject you mentioned 22.3 to 6.7 for your field angle, this sounds like you designing a zoom lens and if so, it could be that you are not setting the field angle right for each zoom! Make use of Multi-configuration Editor shall help to solve it if this is the root of the issue.