The carson ld-75 is a dome magnifier with a 2x magnification and a 75mm lens. a dome magnifier has a spherical, fully transparent lens that allows for a great deal of ambient light. the magnifying glass is very suitable for observations of stamps, coins, photographs or other objects with a flat shape. in addition, a dome magnifier is also a good tool when reading. This universal magnifier has a 2x magnification and lens diameter of 75mm. the convex shape at the top ensures that extra (ambient) light falls on the object, which becomes extra light and therefore more visible. Usage carson ld-75 To use the magnifier, place it over the object. the weight ensures that the magnifier (and thus the object) remains in place. you place the magnifying glass with the flat side on the object you want to view. the lens of dome magnifier is made of acrylic. in comparison to glass lenses, acrylic is more lightweight and has a higher scratch resistance. to make it easy and safe to take the dome with you, a fabric storage pouch is included.