 These tests correctly indicated spherical aberration.. 
àmì Allen (Ibi Allen Stewart Königsberg; December 1, 1935) jẹ́ òṣèré àti olùdarí fíú ara ilẹ̀ Amẹ́ríkà.Ìtọ́kasí àwọn òṣèré ará Amẹ́ríkà.. 