I may be making it too simple and missing some nuance of what you are after, but I think you just want a LEFT JOIN.
SELECT t1.Field1,
t1.Field2
FROM @test1 t1
LEFT JOIN @Test2 t2 ON t1.Field1 = t2.Field1
AND t1.Field2 = t2.Field2
WHERE t2.Field1 IS NULL;
There are no special teachers of virtue, because virtue is taught by the whole community.
--Plato