I'm trying not to beat a dead horse here, but I can't seem to find an answer that is an exact fit for me, so here goes. I'm attempting to take pictures of my daughter's ballet recital. It's in a theater with stage (low) lighting and the darn ballerinas refuse to hold still! My kit includes an 18-55mm and a 50-250mm lens. I've read many answers on the forum that eventually lead to getting a better lens (the nifty fifty sounds like my next purchase), which is great, but I don't have the time or money to do so right now. I need a "best fit" answer in the meantime using my existing equipment. I've used the TV mode and set the speed to 1/80, ISO 1600, f-stop is either f/4.5-5.0. My shutter is on continuous burst and I'm using the AI Servo. Results: When I use these settings I get somewhat underexposed images with some blur, but somehow I've managed to miss those perfect ballerina poses (much to my wife's dismay!). When my wife tried these same settings she had a heck of a time getting it to focus quickly. Once focused, it would take pictures, but eventually revert back to the focus problem. I used the viewfinder and she used the LCD display. Would that affect results at all?