Tasco 0 Porro Prism Binoculars Black Box. This Binoculars from the experts at Tasco is made with a black full-size porro prism design that looks great and is very rugged. The Tasco 10-30x50mm Essentials Binoculars are constructed with fully coated lenses and BK7 prisms ensuring a very clear and bright image. This Tasco Binocular is weather resistant so you can safely take it with you to any location without worrying about damage. For an amazing way to make sure you are using one of the best pairs of binoculars the industry has to offer choose the Tasco Essentials Porro Prism 10-30x50mm Outdoor Binoculars. Specifications for Tasco Essentials 10-30x50mm Binoculars: Manufacturer: Tasco Color: Black Magnification: 10 - 30 x Objective Lens Diameter: 50 mm Prism System: Porro Prism Material: BK-7 Field of View Linear: 192 - 64 ft at 100 yds Optical Coating: Fully Coated Binoculars Focus System: Center Focus Close Focus: 45 ft Length: 3.5 in Weight: 26.4 oz Condition: New Package Type: Box Included Accessories: Case Strap Magnification Type: Variable Tripod Adaptable: Yes Eyecups Types: Fold Down Size Class: Standard Features of Tasco Essentials 10-30x50mm Binoculars Fully coated lenses Rubber armor Weather-resistant Package Contents: Tasco Essentials 10-30x50mm Binoculars Tasco ES10305Z: Tasco 10-30x50 Porro Prism Binoculars Black Box