CREATE TABLE table_203_356 (id DECIMAL, "type" TEXT, "diagonal  ( mm ) " TEXT, "width  ( mm ) " TEXT, "height  ( mm ) " TEXT, "area  ( mm2 ) " TEXT, "stops  ( area ) " DECIMAL, "crop factor" TEXT)

what are the only two types with a crop factor over 20 ?
SELECT "type" FROM table_203_356 WHERE "crop factor" > 20
SELECT "type" FROM "table_203_356" WHERE "crop factor" > 20