Originally posted by edom31 If you want and opt to keep the lens:
See if you can find literature on dissasembling the lens and clean it yourself (I've resolved fungus w alcohol/Hydro-Peroxide mix on a few of my lenses). those old lenses should be simple enogh to dissasemble.
What would stop me now from attempting to clean a lens is if I have to unscrew those microscopic flat-head screws within the barrel = unless you're a pro, chances are at least one of those will not give way and you'll end up in frustration and possibly a stripped screw head.
It looks as though it can be accessed from the rear - 3x flat-head screw to remove mount and unwind rear two elements from assembly. However, I don't have the tools to remove the rearmost element
only so this is where the deliberation comes in. What I absolutely don't want to do is break it and be £50 down and lumped with a pretty paperweight.
The seller has offered to refund in full and for me to return the lens. My gut feeling is to return, squirrel away the money I paid and put it towards another lens; perhaps the same, perhaps not.