Hi Gremlin.  Yes, it’s time


Hi Gremlin.  Yes, it's time to step into the age of high definition video, especially since the industry is about to step past that age into the age of ultra hight definition, or 4K, but it sounds like you're not ready to spend the money that is required to buy a camera that is capable of 4K yet.  But it is time to upgrade to at least high definition for sure.  The HF R300 is no longer being carried by some vendors, which is a sign that it is an older model that is about to be discontinued.  Although I've never used the HDR-CX230/B, I have used other Sony cameras, and have been generally pleased with them.  Just keep in mind that at that price point, you will get what you pay for.  As far as audio goes, however, it does not have an input for an external mic.  Nor does the HC-V520.  And no matter what, you'll never get good audio on a mic that is built into the camera.  And that is because the mic is on the camera, and not close to your subject.  You would have to use an audio recorder and sync up the audio in post.  You could then connect an external mic to the audio recorder.  Zoom makes good audio recorders.  Rode makes good external shotgun microphones.  I hope this information helps.  Let me know if you have any other questions.

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