Hi Joe,

If it's a Pentax-F100/2.8 macro and you got it at a good price, then try clean it locally and keep it. Otherwise I'd return it if I were you.

Have a nice day.

It looks like it has never been mounted [B][I]but[B][I] It has fungus.
I was thinking of returning this because description called it a dfa macro.
I bought it from adorama so no problem returning it.
I knew about fungus but thought it would be worth it considering it was supposed to be dfa.
If I do return it you can buy it from them directly if interested.
Joe

Hi Joe,

It depends. It may go up to $400 if in good condition.

How is your copy?

I have a f 100 macro. What is the value of this lens
Joe