This lens is beat up and the glass does not look to healthy but the pictures sure do look nice with a great depth of focus and beautiful bokeh. Makes me think what a pristine specimen of this lens can do. It was made around 1982 and is one of 74,048 of this lens made, I find that many lenses that I have that perform really well often are old, although this one being over 25 years old is a little long in the tooth.( Still not longer than my 105mm AI lens).
If you want to read a little review on this lens
check this out.
Or for a more balanced story check out Nikon's own "
Tale 10: AI Nikkor 180 mm f2.8 ED"
One last little thought, thanks to the crop factor afforded by the APS-C sensor in my camera this lens has an effective focal length of 270mm which with this optical performance and speed is phenomenal.