About: http://webisa.webdatacommons.org/395675465

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	There are a number of L-brackets designed to attach flash units or other accessories but none is specially made for the D5100 and most are not inexpensive considering what you want them to do.
http://www.w3.org/ns/prov#wasQuotedFrom	dpreview.com