http://www.sigma-photo.co.jp/new/new_topic.php?id=480

http://www.excite.co.jp/News/reviewmov/20130129/E1359394895325.html?_p=1

http://tukaikta.blog135.fc2.com/blog-entry-251.html

http://togetter.com/li/446442

http://smhn.info/201301-apple-addtion-128gb-model-ipad

https://twitter.com/fogmn/status/296058531046625281

https://twitter.com/ohagi23/status/296104988671868929