we just bought a Canon Power Shot ELPH 120 IS, my question is about what is displayed on the screen when we turn it on, there are symbols or numbers for ( left to right) battery, pictures remaining, picture size, movie quality then the numbers 48'57", can anyone tell me what the 48' 57 " stands for? we've studied the manual and looked online and can find no answer, any answers or suggestions on where I could find the answer to this will be appreciated, thanks

