I have the same problem but it is listed as duplicate content within my site as a result of sort mechanisms and category pages. The consumer wants the sort mechanisms and category pages in order to find the products they are looking for quickly and I've tried everything and still have "duplicate content" listed on Moz crawls and Google Webmaster and just about everything. Imaging won't work for me since it is a result of database search mechanisms which cause the "duplicates" I also have canonical urls on pages but that doesn't solve the problem either. I think we are damned if we do and damned if we don't.
