Hello, I am a mom trying to get great pictures of my daughter and teammates at her gymnastic competitions. I bought the Nikon D5200, AF-S Nikkor 18-140mm 1:35-5.6G cheat sheet and they have been great! I am now able to catch the quick movements without blur, but the cheat sheet is for sports outdoors, so my pictures come out crazy dark. We are also not allowed on the floor so I end up shoot at full zoom. When I put the photos into photoshop to lighten them they are very noisy. Currently I am able to get decently lit shots, but grainy using either Manual Mode or Shutter Priority (1/500, f/5.6, ISO-A 6400, Fine Quality, ADL A, WB Florescant 4, AF-C, AF-Area Mode, 21, Metering Matrix, exposure compensation +4.0). Any help would be amazing. I have been thinking I just need a bigger telephoto lens, but if I can avoid the cost that would be best.