An apparatus and method is disclosed for calibrating a sight of the apparatus for use with a projectile launching device. The apparatus includes the sight, including a viewfinder that permits a user to view an image of a target in association with a reticle, a digital image system for capturing images of the target viewed in the viewfinder, one or more sensors to detect a firing time, being a point in time when a projectile is ejected from the projectile launching device, the apparatus being configured to capture one or more first images, being images captured at or close to said firing time, said one or more first images associated with the position of the reticle, wherein an image processor is configured to compare images captured after said firing time with said one or more first images, and to identify an indication of a projectile impact on said target, the apparatus being configured to capture one or more second images, being images captured after said firing time and including said projectile impact indication, and wherein the apparatus includes a reticle adjuster to automatically position the reticle in the viewfinder in accordance with a comparison between said one or more first images and said one or more second images and the associated positions of the reticle and the projectile impact indication. There is also disclosed an apparatus including an infrared thermal sight for mounting to a projectile launching device including a display viewable by a user and a scroll/press interface mechanism for use by the user in controlling operation and functions of the sight, the scroll/press interface mechanism configured for rotation and pressing, whereby (1) a long press, (2) short press and (3) repeat short presses each provide different ways to access and select operations or functions of the sight.