As you no doubt know already, focusing using the 3-inch (or smaller) LCD screen at the back of your camera is a pain. Initially it didn’t bother me, I simply accepted it as one of those features you’d need to put up with. Back then, I used my Canon to take pictures and only occasionally filmed something. But with time I started using the video feature more and more. And experienced more and more disappointments. Why? What I thought was pin-sharp on the LCD screen turned out t