At least one exemplary embodiment is directed to an image pickup apparatus which includes an image pickup unit, a first optical member, a film, a second optical member, and a luminosity correcting filter. The image pickup unit includes an image sensor. The first optical member is operatively attached to the image pickup unit and formed of a birefringent crystal material. The film is disposed between the first optical member and an image pickup optical system and formed of an organic material. The second optical member is operatively attached to a first side of the film. The luminosity correcting filter is operatively attached to a second side of the film.