I used XA20, XA30 and XA35. I decided to buy 2 XA15. Absolutely love these cameras. They have an excellent zoom, good for low light (I shoot indoor conferences and events). The XA15's SDI output is a great connection that I need to go live. There's also an HDMI output, which I don't use. The main physical difference I can see between this and the other XA range is that the screen is a bit smaller. This is not a problem at all, just a physical difference.
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