I bought a rebel T6i in December. It's my first DSLR camera. I was getting really great pictures up until now. My biggest challenge was finding my favorite pose and making sure all eyes were open. I've done multiple photo shoots and loved the results. Now all of a sudden my pictures are blurry. I've done everything I can think of. Changed the camera back to factory settings (in case I messed something up by mistake). Bought a new SD card in case it was that. I'm so frustrated already. Does anybody have ideas on what could be wrong?