Variable from 3x (for close-range/wide field of view) to 9x (for precise long-range shots). Objective Lens: 40mm, designed for high light transmission.
: The lens closest to your eye, featuring a diopter/focus adjustment. bushnell 3-9x40eg manual
: Position the scope in the rings so you have the maximum field of view without "black rings" at the edges when in your natural shooting position. Conclusion : Position the scope in the rings