Read the manual. I got it for sport, figured out the shutter speed and ISO, and my pictures are amazing. I have to reset the autozoom when I focus, but once you reduce it you'll be surprised. It has an error with the SD card. Take a small GB and click Reformat a couple of times. That will work. I have never taken better pictures.
Nikon D5100 Digital SLR Camera with 18-55mm VR Lens - High Resolution 16.2MP
172 Review
Nikon D3100 DSLR Camera Body (Kit Box) - No Lens Included, International Version with No Warranty
298 Review
Nikon D3100 DSLR Camera with Auto Focus-S Nikkor Zoom Lens (Discontinued by Manufacturer)
109 Review
Discontinued Canon EOS 7D Digital SLR π· Camera Body Only with 18 MP CMOS Sensor
88 Review