[Plugin]Looking for WP Comparison of posts plugin

I have website showing the photography camera equipment etc. And would like to make avalible Comparison of products. I don’t want anny affiliate plugin or price plugin. Just want to add some search for products and avalible for users to compare short descriptions of let’s say Lenses.

If someone find interesting lenses from the lenses cattegory can choose witch one to compare let’s say up to 5.

Is there a way to do it ?? I was thinking about making some custom fields searcher / compare avaliblity… pleas give me a clue how to make it.

Something like this: http://www.lenstip.com/lenses_compares.html