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Message: <blockquote data-quote="denco@comcast.n" data-source="post: 1374545" data-attributes="member: 25300">Yes. I meant to use quote marks on that quotation but in my haste I forgot them. But you are right a link would allow the readers of the thread to follow the train of thought of the author of the quote and how the thread evolved. Good point!     Henry. What is your opinion on the advantages of the porro prism design in binoculars versus a roof prism. Do you feel with the advances in roofs that they are now the optical equal of porro's or will porro's always retain some advantages such as the 3D image and roof's will have other strong points such as their close focus ability? I realize this is taking the thread in perhaps another direction but I value your opinions on matters such as these.Dennis</blockquote>