I need to record videos at least 1080p (mainly video-lectures or like) averagely 5-15 hours every week..
I am not going to send those videos to Oscar's jury, but if possible, I need an normal/good HD quality for an affordable price (below 1000$). I was thinking to buy a camera (lets say, Canon SX50 HS) for that, but someone told me, that it's not advised to use a camera for frequent video-recording purposes, instead use VideoCamera.
So, my questions:
a) while recording with PhotoCamera, and try zooming, it has a sound, right? are mirorless cameras better? does it have auto-focus?
b) I need it to record audio as well, good quality (I can use separate transmitter as mic-source).
c) is there a really huge concern, which one I use for recording videos? Will a Canon camera work well or do I have to buy a "Video Camera"?
d) about quailty - any difference between 1080p recorder from same megapixel Photo camera and from video recorder?
What are the pros and cons? (p.s. I dont care if they record in 30 minute steps or etc..)