Abstract: An electronic imaging apparatus of the present invention comprises a photographing optical system, in order from an object side, a first lens group having negative refracting power, which has a reflecting component having a reflecting surface for bending an optical path of an incident light from the object side and at least two positive lens groups arranged at an image side of the first lens group, wherein the photographing optical system is a zoom optical system and the following condition is satisfied: ?1.75<f1/fw<?0.8 where f1 is a focal length of the first lens group, and fw is a focal length at the wide angle end at the photographing optical system.