Hey, Storres - You present an interesting Mystery. 1. It is certainly NOT related to the size of SD card, or no. of images stored on it. Is the "blur", you perceive is on ALL images, or just indoors or low light? Reason I ask is that image above ...
Storres - I am a new member, but long Canon shooter. I think we can RESOLVE your low- res problem. I bought a SX 510 HS as a small "backup", for big DSLR. Because of the large primary lens ( mine is size of a silver- dollar), like a larger telescope...