The key main spec upgrades are these:
- 20 Megapixel sensor against 16 Megapixel
- They both have the same TruePic VIII image processor, but Mark's IV is a bit more improved
- Up to 4.5 stops of correction vs. 4, and they both have 5-axis in-body image stabilization
- A bit less burst rate of 4.5 fps burst shooting with auto-focus vs. 4.8
What's this camera all about? In short, it is all about democratizing full-frame 4K movie recording; and taking it to yet unknown levels of performance (at least for compact cameras). And yes, we know, it looks like a photographic camera, but it really is not. So, if the 12.1 Megapixel count doesn't derive you from believing this, then keep on reading to understand better why this is a video camera.