Abstract: A solar power system. A plurality of solar cells are joined to a foldable base. The foldable base has areas between the solar cells configured to fold to enable stacking of the solar cells. A voltage regulator is coupled to solar cells and an electrical connector is electrically coupled to the voltage regulator and configured to electrically couple to, and deliver an electric current to, an electrical device. In implementations a reflector is coupled to the foldable base adjacent to one or more of the plurality of solar cells, the reflector including a reflective material on a face of a flexible material, the reflective material configured to reflect light towards one or more of the plurality of solar cells. In implementations the voltage regulator is a pulse width modulation (PWM) voltage regulator. In implementations a switch coupled to the voltage regulator adjusts the voltage output between two or more levels.

Abstract: A telephoto lens sighting apparatus. A mount couples to a hot shoe of a camera and a first sight couples to the mount. The first sight has a first gap that corresponds with a viewing aperture of a telephoto lens coupled to the camera. A second sight may be movably coupled to the camera through a sliding track and may thereby move with respect to the first sight. The second sight has a second gap, and the first gap and second gap when aligned correspond with a viewing aperture of a telephoto lens coupled to the camera. A first receiver may couple to the camera to selectively receive the first sight and a second receiver may couple to the camera to selectively receive the second sight. The first sight and second sight may each pivot to a plurality of positions and their heights may be adjusted.