2004 年 67 巻 Suppliment1 号 p. 8-9
OLYMPUS has developed a new digital SLR camera E-1 with high image quality and mobility. New imaging system is applied to E-1. This new imaging format has half the diagonal length of 35-mm film format (36mm×24mm). The focal length is half that of a 35-mm film camera lens to achieve the same angle of view.