I've got an M3, which I love, but my glasses make it hard to see the frame lines all at once. I've seen this gizmo advertised that claims to reduce a .85 finder to a .72, or a .72 to a .58. Has anyone tried it?
http://cgi.ebay.com/0-85x-Viewfinde...I&otn=4&po=LVI&ps=63&clkid=827829460111390318
http://cgi.ebay.com/0-85x-Viewfinde...I&otn=4&po=LVI&ps=63&clkid=827829460111390318