Ive recently been trying to aquire a mint condition nikkor 85mm 1.4 lense. I want to use it mainly for portraits and everything else, as its supposedly an amazing lense. I bought the MF AI-S version from KEH ab out 2 weeks ago. Lense arrived in flawless condition, but didnt stop down at all (not sure whats wrong). KEH sent me a replacement that also rated as "EX" (meaning execellent, their 3rd highest condition). This new one stops down, BUT The aperature hole, when stopped down, is not perfectly circular. It has 9 elements and some are longer than others, especialy at F/16, and it gives it a sort of slightly off balance shape. KEH told me this was normal for this type of lense and I should be fine to use. I am, however, not too happy, and pretty sure I am going to return it. Am I overreacting or will this affect picture quality? All my other used nikkors have had perfectly rounded (by rounded I mean proportional polygons) diaphrams.