Opticron 8x42 SR GA prismatic (Porro Prism) binoculars. I bought these second hand for 50.00 from a Car Boot sale three years ago. They have proved to be the best pair of binoculars I have ever used. They are superbly clear and sharp, over 95% of view. Field of view is 6.3 degrees. Soft fold down Rubber eyecups (I find these comfortable against my eys - not like the "thick" twist up kind that most modern binoculars seem to have these days). Eye relief is 13mm. Very comfortable to hold and look through. Colours of whatever being looked at are very natural.