Nikon Monarch Eyepiece MEP 20-60The Nikon Monarch Eyepiece MEP 20 60 is the standard eyepiece that comes with the Nikon Monarch Fieldscopes. If you have a Monarch Fieldscope, you already have one of these. But if yours is unfortunately broken, lost, or stolen, this is the place to replace it. The MEP 20 60 is 20 60x on the 82mm Monarch Fieldscope and 16 48x on the 60mm model. It weighs 12. 3 ounces, has a Field Flattener Lens, has 16. 1mm of eye relief at low power and 15. 3mm at