What size adaptor rings do I need?

I have a Nikon D5100 and the lens I'm using currently us a Nikon DX 55-200 I bought a micro filterer which is a 52 mm and it didn't fit although the seller said it would. Anyhow I need to get an adapter ring although I'm confused on what size I should get it sense apparently 52 mm doesn't fit. Also on the back of lens it says ø52 so I thought that would be size so I'm lost and confused about lens sizes. D: What size should I get my adapter?!

The filter thread size is 52 mm, so any 52 mm filter, whether it is a special closeup dioptor or other filter, will screw on to the lens

I suggest you take your filter and camera into a proper camera shop and ask them to show you why your 52 mm filter will not fit your 52 mm filter thread on the lens

Micro filterer? Anywho, 52mm is 52mm and should fit.

Make sure the filter you bought is actually 52mm, it should have that same mark on it as the lens.

If the filter is 52mm, and we know the 55-200 is 52mm, that means that the threads on one or the other are damaged. It doesn't take much to make filter threads useless.
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