http://www.nikonchat.com/nikkor-52mm/

Questions about my new camera purchase, a Nikon d40 but upgraded internally to a d90?
Well i just recently bought a Nikon d40 but the previous owner told me he had got it internally upgraded to a d90. This is my first slr camera and i have many questions. But my main one is what lens can i get for it. Do i look for ones that go with the d40 or the d90. I already own bower fish eye .042x46mm,Nikon dx af-s nikkor 18-55mm,sunpak 52mm circular polarizer,af-f dx nikkor ed 55-200mm. Sadly i have no clue what any of it means but im trying to read up on it! Someone please email me or reply with further information i would really appreciate it!
Either you are mistaken by what he said, or he lied.
Video Test flares filtro UV fotografia nocturna (2)