Canon's M500 replaces the older M400, and offers some real improvements to entice potential upgraders. The headliner here is the new HD CMOS Pro, which supposedly offers 20% better low-light performance than the sensor found in the M400. Other upgrades include improved stabilization options and a smaller form factor, although the M500 only has one card slot to the M400's two. The M50 and M52 feature similar specifications, but include 8GB and 32GB of internal memory, respectively, as well as built-in WiFi. Reviews have been quite positive, making this camera a great mid-range buy.