So I finally got a cell phone. I was holding out to be the last person on earth to get one, but my brother thwarted my plan by giving me a HTC M8. Having started with film and a Minolta XD-7, today I have a 7D and a full set of EOS lenses. I also have a little Lumix, if I want to travel light, but I expect to have the cell phone always with me. I am no newcomer to photography, but I am keen to figure out the whole cell phone thing. The camera is actually quite nice, but the digital zoom is terrible. It's so bad that it's always going to be better to crop later than to use the the tele zoom function in the camera. I've seen that auxiliary lenses for cell phones are available. The lens is pretty wide, and the macro capabilities are good enough. If I need more, I can always take a proper camera. But the tele is awful. Should I just keep on cropping, or would it be worth my while to look for an attachable tele zoom lens? It would have to be small, so it can rest permanently in a pocket. If I want to lug gear around, I won't rely on the cell phone. Does anybody have experience with this and can make some suggestions?