X20 Video IQ question
In a word: yes. This is completely normal. The video capture will not be the equvalent of rolling still photos for a variety of reasons, but mainly due to the sensors in these cameras and the amount of computing power they have.
What it means is that, though still photos from the X20 are something like 4,000 pixels wide, it and comparable cameras max out their video processing at 1920 pixels wide (also known as 1080p, which describes the vertical number of pixels).
To get video at 4,000 pixels wide (4k video), you need a modern cinematic digital camera which typically sell for $15,000 and up.
...Or the Nikon V1, on which someone recently figured out that they can do "bursts" of 4k video for ~1 second (http://www.petapixel.com/2013/03/17/the-nikon-v1-can-shoot-one-second-snippets-of-4k-video-at-30fps/). Which is cool, but not terribly useful.
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