Why the heck would I put two p's in the word aperture? Oh well, moving on..... Well, I was ecstatic to receive my new Nikkor AF 50 1.8 to replace my 50 1.8 Series E manual focus train wreck today, but to my dismay, I get the error FEE when I try to take the aperture ring off of 22. The 22 setting does have a locking slide, which would indicate, I'd imagine, that it's the default setting, but why won't my camera let me take the aperture up to 1.8? I'm about to call Nikon, but I figured I'd ask here first so that others could benefit from the no doubt awesome insight my TPF neighbors will provide. Thanks for the help.