Bill, most any digital camera made in the last 6-7 years can do high definition (high pixel count) video. The quality varies, especially in poor/low light, but a camera from a pawn shop for $40 could get you there. It won't give you editing or the shiniest production values, but those of us who watch a lot of trade videos on YouTube are quite understanding and appreciative of amateur video of expert work. And we don't mind watching 40 minutes of someone who knows what they're doing, even if what they are doing is repetitive and would bore the masses to tears. Even my 5-year-old son enjoys watching that stuff with me. He can't wait to get his hands on every tool I have.
The files saved by those basic digital cameras can be uploaded directly to YouTube. Just create a channel with the name of your choice, give each video a descriptive title and, well, description, and before long you will have a community of loyal followers itching to see what you do next. It might not be hundreds of thousands of followers, and no matter what you post there will always be morons there to detract from what you're doing, but why should online interactions be any different from the real world?
Just grab a Canon, Sony, Panasonic or Panasonic digital camera that records 720p or 1080p digital video, the largest memory card that camera can take (look for SDHC or SDXC on the memory card door, or a label inside the door, then buy the largest of that type on Amazon. Memory is insanely cheap these days. Get a dirt cheap tripod (it just has to hold a tiny camera still, you're not filming a big budget movie), and start teaching. Post a link here when you have uploaded something to YouTube and you will immediately have a following.
You'll learn more as you go, but getting started is better than waited until you know how to do it perfectly. Sound familiar? :-D
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