The Panasonic GH2 and Sony NEX-5 have a 16:9 LCD aspect ratio, while other cameras are 3" or 3.2". If you've been shopping for an LCD loupe to fit the GH2 or NEX-5, there really wasn't much in the 16:9 aspect pool (except for one that ran over $120 dollars). Here's a new loupe that claims it has been designed to fit those exact 16:9 aspects providing shade out in the bright sun to check exposure, or used to magnify your LCD to help you get focus. No sticky frames, no diopter, no base plates, just mounts with simple bands. Pricing is about average for a DSLR LCD loupe.

16:9 LCD Loupe DSLR Viewfinder for GH2 Sony NEX