Quote:
Originally Posted by rusnak
I have a video that I shot on our Christmas Facebook page with my still camera. It was a homecoming for an Army guy who's kids had not seen him in a long time.
The video came out OK. I'm not saying it didn't.
But the Canon HD camera has an adjustable gain and a shotgun mic that would have picked up every syllable of every word uttered from 50 feet away.
And this is really important once you get "into" shooting live performances. Zoom speed. It's super hard to maintain slow, even zoom for delicate nuanced details like facial expressions, etc. with a DSLR. They are not made for motion shots, so the zoom is fast, and choppy. A motion camera with a good zoom can make it look like you are a pro, with slow even zoom.
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I have adjustable audio on my A7ii, and can pop a shotgun mic on the hotshoe that is much better quality than you'd find integrated into a video camera.
It comes down to how/what/where you shoot. A few years ago I stuck with dedicated video cameras as still cameras were a pita (e.g. the Canon 5D). But in 2015 the world is different and the gap has changed.
As for power zoom, there are some lenses on mirrorless cameras that do that to give you the slow zoom look, but that often isn't a great effect. It is becoming more common for people to on one hand, edit shots so they'll do a wide shot, then zoom, refocus, and get a tight shot, then put it together. Alternatively, people put up with a lot of crappy video on youtube so a shaky/fast zoom doesn't phase a lot of viewers.
The big deal is chip size - typical video cameras have a tiny sensor compared to a typical mirrorless still camera. That makes a big different in low light and for giving shallow depth of field should you want that.
For the past couple years, it has been pros who have embraced dSLRs for video since they can get results that would previously have required a $100K camera. That tech is trickling down and current mirrorless cameras are getting really good at stills *and* video. And in fact increasingly there are pros who are shooting video and just using frame grabs for still shots.