Will this: http://www.ebay.co.uk/itm/NIKON-NIKKOR-50mm-F1-8-AI-S-STANDARD-LENS-WITH-CAPS-/360932943589?pt=UK_Lenses_Filters_Lenses&hash=item540947a6e5
Fit on this:
So basically Nikkor AI-S 50mm lens fitting on a Nikon f1?
Read more: Will this lens fit on this camera?