As the name describes, this is basically an outdoor microscope used in the field.  Binocular vision gives 3D effects.  Although not very high as magnification goes, this scope can be used to view many types of objects including soil types, mineral types and of course biological specimens.

Technical Details: 20x magnification microscope with protective lens cover Water-resistant O-ring protects from rainy and damp environments Compact, easy to carry profile Convertible plate for various subjects Includes tripod socket, case and neckstrap.

Product DetailsProduct Dimensions: 4.9 x 3.5 x 3.5 inches ; 4 pounds Shipping Weight: 2 pounds. Currently, item can be shipped only within the U.S. ASIN: B00006JK63 Item model number: 7314