Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Higurashi Masaki,Development of On-Sensor Phase-Difference Detection AF for OLYMPUS OM-D E-M1,Journal of The Society of Photographic Science and Technology of Japan,03695662,THE SOCIETY OF PHOTOGRAPHY AND IMAGING OF JAPAN,2014,77,3,213-217,https://cir.nii.ac.jp/crid/1390001206569103104,https://doi.org/10.11454/photogrst.77.213