Nikon Lens Scope telescope converter

This excellent accessory fits onto the back of a Nikon telephoto or zoom lens and turns it into a top quality telescope.

It magnifies as follows: the degree of magnification is calculated by dividing the focal length of the lens by 10.  For example, a 300mm lens becomes a 30x telescope (300 ÷ 10 = 30), a 150-500mm lens becomes a 15x-50x variable power telescope, etc.

In very good condition.