Many camcorder have front mounted mics which is not nice for behind camera commentary work. The Sony NEX with it's fixed shotgun is not designed for this purpose.
If oyu want to do behind the camera commentary get a camera with top mounts mics.
My Panasonic v770-hd has a back mic not front one and it is 5.1 channels, but I use the external lapel mic when I do overhead videos which are similar to your behind commentary. I don't know about which one is better quality.
Internal HF G30 mic, manual gain (auto-gain is BAD NEWS on any camera).
this is quite interesting that you use the internal mic.
how do you adjust the gain? I mean, I could increase it in camera settings but how do I know it is good or not? could it be the same for all future recordings or each video must have its own.
I suspected that you use noise cancellation walls or such fancy stuff. I asked about your garage lab since I will do the same next year, does it have the same audio quality as your current lab which is in a room?
My current shared room has annoying air conditioner (old mechanical one), so I turn it off 2 mins before recording but still gets too much noise that I use Audacity to filter it. Check my latest episode (mailbag #2) to see final result. I still think your quality is better which is why I ask.
I used a shotgun mic and was maybe 1m away.
So shotgun mic helps eliminating noise while lapel mic/internal mic doesn't?
Yep, almost all my videos use that. Still works fine. I'd only need to change if I went to 4K. I'd like to get the Sony HXR-NX80 but it's very pricey.
Personally I find 4k useless for our stuff. 1080p 60fps is just perfect. your final video could be 20 gb of size for nearly 0 real gains, not many people watch 4k on youtube in general let alone in electronics. 4k is best for gaming and movies. Yes, 2500$ is way too much for a camcorder. You must search for another alternative
For video blogging work it doesn't matter, unless you have really crap indoor lighting.
Youtube compresses the crap out of uploaded video anyway, so fussing over which camera gives a better picture is pretty moot.
Well, I used to film using my Nexus 4 phone and it was bad due to huge amount of noise. Now Panasonic V770-HD is significantly better. I only have a double neon light at the ceiling and my result is generally fine, unless you think otherwise. If I happened to get to a garage lab then I would get customized lighting... and it is a garage, so anything works there. No standards, no styles, no wife opinion.
Generally sensor size is king, but basically any camcorder over say $500 is going to do a good job.
A 1" sensor or bigger will kick arse, but the HF G30 is only 1/2.84" but it's got good optics and is quality top line consumer camera.
The 770 should be able to give more than decent results given enough light, probably on par with my HF G30 in image performance
this one seems kinda nice:
https://www.amazon.com/Sony-FDR-AX100-Video-Camera-3-5-Inch/dp/B00HNJWVIA/not too pricey and has 1" sensor which is a lot better than 1/2.3" and probably better than your HG30. I still don't quite get the megapixel thing vs sensor size.
I shoot at 28Mbps AVCHD, you can do the math. Mine will record for as long as the battery and card last. It's also dual card so can relay from one to the other but I've never used that.
What I meant is that my camcorder has around 75 minutes at full charge at full quality but still the memory is not full, not even close. So this is a battery thing, what about yours? Does your camera record until both SD cards are full or limited by battery itself? how many hours straight on one full charge?
1) Get lots of light
2) Get close to the microphone
3) Used fixed audio gain, not auto, and get the level right in-camera.
4) Get the white balance right in-camera. (All my studio lights are the same colour temp, so I have that fixed in the camera.)
5) Learn to frame and angle things well
1- could be done later on by having extra LED lights. Is position any important or just from top?
2- I use lavier mic mostly, my voice overs are with desktop usb mic connected to laptop.
3- I asked you above about fixed audio gain.
4- Can you explain?
5- I use a tripod with the manfrotto flexible arm for overhead stuff, I plan to get the manfrotto clamp to put it on wall shelves for better stability.