InDebtButOnTime
3546
For full frame I like anywhere from 80mm to 135 that has a large maximun aperture to blur background and isolate the subject. My best are an 85 1.7 (minolta MD), a 135 f2 (MD), a 100 f2
(Maxxum/Alpha), a rare Minolta 85 2.8 Varisoft and while a bit shorter a 58 f1.2 (Minolta MC).