This finder is made by Ricoh for the GR and GR II digicams. I bought it for use with a 21mm on the M8 (using the 28mm framelines) - conveniently, it also has 21mm framelines so you can use it with a 21mm on a film body too. Of course, it's perfect for the Ricoh. Perfect condition with box, case etc. $130 shipped and paypalled.