A photographing apparatus is provided that accurately determines focus positions of two photographing sections in the same degree of time as in the past and a focus position determining method. A search range setting section 121 calculates one boundary value Pn′ of a second search area and calculates the other boundary value Pf′ of the second search area on the basis of a focus position P1 of a first focus lens FLA detected by an AF detecting section 120 and a boundary value N of a search area on a near side and a boundary value F of a search area on a far side. The AF detecting section 120 searches for a focus position P2 while instructing a second F lens driving section 104B to move a second focus lens FLB in a second search area (Pn′ to Pf′) narrower than a first search area.