Scope eyepiece (1 pcs), to be installed on the interchangeable lens. The scope eyepiece comes with a tripod mount that can be removed according to use. MILTOL Scope Eyepiece Kit is available for Nikon F mount, Canon EOS mount and T-mount lenses.
MT eyepiece 20 [MT22] (1 pcs), with a 22mm focal length, to be installed on the scope eyepiece. Different magnifications can be obtained by using different size eyepieces (optional).
Magnification = (Objective Lens Focal Length / Eyepiece Focal Length) x 2.4
For example, when installing this scope eyepiece with MT22 eyepiece on an 80-400mm f/4.5-5.6 lens, you can get a 9~44x zoom type field scope. Or, when installing on a macro lens, you can change the focusing range of the macro lens from short distance to infinity, thus turning the lens into a field scope.
Also, if installing on macro lenses with 1:1 ratio, you can turn the lens into a magnifying tool with 27x magnification power.