About: http://webisa.webdatacommons.org/176977037

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	On the grip itself there is a second shutter button, thumb and finger wheel, navigation joystick button and a second AE-L and AF-L button on the grip itself all designed for use when shooting vertical images.
http://www.w3.org/ns/prov#wasQuotedFrom	photographyreview.com