Optics, Binoculars, Spotting Scopes, Cameras and Rangefinders
Our Optics category contains a large selection of binoculars, spotting scopes, SLR cameras, rangefinders and nightvision units. We stock some of the best brands in the optics world, including Swarovski, Canon, and Zeiss.
What is objective diameter?
The objective diameter refers to the inside diameter of the objective lens (the lens closest to the object you're viewing), usually measured in millimetres. A larger objective diameter will mean the optics take in a greater amount of light, providing greater definition and a brighter image. However as the objective diameter increases, so too does the size and weight of the optics.