I want to add close-up lens(es) to my 80-200/4 zoom, filter size 55mm, until I get a true macro lens. A quick search in B&H reveals that several brands are available: B+W lenses for $18.50, Minolta lenses for $30, and multi-coated Hoyas for $105. I could also use $46 Nikons in 62mm size with a step-up ring. I have heard that 2-element close-up lenses are optically better. I know that the Nikons are 2-element ones. Are the B+Ws & Minoltas 2-element lenses too? Are they good performers?