Essentials Porro Features A sports enthusiast s dream These Tasco Essentials Porro Binoculars feature impressive power and a little extra zoom to get you in tight. Essentials Porro Specifications Field of View (ft.@100yds./m@100m): 190/63@10x / 130/43@30x Weight (oz./g): 10.22/200 Magnification X Objective Lens: 8-24x 25mm Size Class: Compact Focus System: Multi-zoom options available in select models Prism System: Porro Zoom Lens Coating: Fully Coated Close Focus (ft): 20@8x / 23@24x Model: ES82425Z Color: Black