A support facility for a binocular has a base, the base including a tripod connection facility, a flexible strap having a first strap end connected to the base, and an opposed second strap end, a tensioner connected to the base and to the second strap end, the flexible strap, the base, and the tensioner defining an opening configured to receive a first barrel of the binocular, and the flexible strap including a length adjustment facility adjustable over a range of length adjustment positions. The length adjustment facility may be configured to provide a selected strap length based on the diameter of the first barrel. The tensioner may be configured to operate between a released position in which the length adjustment facility is removable from or movable along the flexible strap and an engaged position in which the support facility is engaged to the first barrel.