Reply I am hunting for a pair of binoculars,that should be appropriate for looking at concerts,and opera in theatres and venues. Reply I've just purchased at an antique shop a pair of German “Blitz” twelve x 50 ( double prism – I do think is The outline ) binoculars – https://eosr98641.blogdigy.com/considerations-to-know-about-binoculars-31545719