another method that works for me with close up macros is to back up from the tank and zoom in until your camera hits the point at which it goes into digital zoom (red box that gets smaller and smaller as I zoom in on mine). Get the pic as clear as you can and get as close as you can. once it is clear and framed, zoom in with the macro function on and you should be able to get a better close up. Doesn't work all the time, but for those of us without SLR...