I purchased the 3" LCD screen protector for one camera and the 2.5" screen protector for another. The 3.0" screen is on my Panasonic Lumix DMC-ZS3 and the other, an older Lumix DMC-FX8.
The problem is both cameras have a 3" and 2.5" LCD "viewable area" but the actual screen surface is larger. On the 3" screen, there is about 1/8" top, bottom, and right-side that is not covered by the protector film and 1/4" on the left-side that is not covered. So the protector only protects the viewable area, not the surrounding area. The same situation on my other camera. The film was easy to apply but on the 3" film, when I pulled the top protective layer off, there was a scratch across the final surface. It is a very clear film and doesn't distort the image. I would rather have the option to purchase the protection film in bulk and cut-it-to-fit. That's what I did with the DMC-FX8 a few years back. I suggest you measure the whole screen of your camera and then decide if the area not covered by the protector is acceptable to you. Looks like a durable product.