There are two new cameras are on the DSLR video radar. The new NX20 is Samsung’s answer to the GH2 and similar in many ways (though crucially not one, as we’ll see in a moment). A nice surprise is that it has a 1920×810 2.35:1 anamorphic cinemascope mode. It is also interesting in that it’s one of the first ‘smart DSLR’ style cameras with features that make the iPhone and…