How to set brightness of the front camera of LG G3, when I make video chat?

[Matejk]

When I use the camera for making videos & photos it's working great! Only, when I make video chats, the brightness of front camera (my face preview) is very dark.

I was looking on the net and in forums (but I didn't find the answer yet), how to set the brightness of the video chat camera preview on the right normal brightness.

 

[Mooncatt]

When in a video chat, the app controls the camera, so you would have to check what app you're using for any exposure controls. In the normal camera app and talking selfies, the "flash" is the screen itself, which goes to max brightness and displays a white background. That isn't likely possible with video chatting since you need to be able to see the person you're chatting with.

Ideally you'll want external light. Something like this, that clips on, may work well.

https://www.amazon.com/Auxiwa-Selfi...ag=hawk-future-20&ascsubtag=UUacUvbUpU6933407

That was just a random result when I searched "smartphone selfie light." There's lots of options that popped up of various designs, so look around.

 

[smvim]

In a typical, generic situation the cameras in our phones are much closer to being similar a over the counter, point-and-shoot, disposable camera than a more elaborate, very configurable, professional/hobbyist DSL camera, at least as far as all the autofocus, autoconfigure settings. Back when DSL cameras were the norm, it was up to the user to use the proper speed film (ASA) , the appropriate lens (standard, telephoto, etc.), and then adjust things like aperture and focus on-the-fly while actually taking a picture. Now, that's almost all done the camera app (software) in accordance to the capabilities of the camera module in the phone (hardware) where the user just starts up their camera app, point the phone, and tap a button.
So getting back to your query, if your face appears to be too dark when using the front camera (a.k.a. selfie camera) you have a couple of options. One is to have better lighting in front of you, there's too much behind you. Any camera is based on incoming light so when there's little light on your face but a lot of light behind you, the autodetection in your camera is adjusting to what the camera sensor is seeing, all that light that's flowing from behind you. So face into the light if possible, or have a lamp or something in front of you. Another option is to look into the settings menu of your Camera app and see if there are options to compensate for the lighting. There are probably adjustments for low light situations, where you need to manually set up your face to be better lit (but this will probably also result in the background being somewhat blown out, depending on the degree of differences involved). Or some camera apps allow you to manually set a particular feature (in this matter, your face) as the primary focal point, so your face is what the autodetection sensors will work off of. One thing to keep in mind is the rear camera is the primary camera with a higher resolution capability and more features, the front camera is going to be secondary camera, still adequate but with limitations. Also, the default Camera app on your LG phone might be very capable (be sure to play around with its user interface options, and check for more in the app's Settings menu), or not. If it is too bare-bones, you might be better off installing and using a third-party Camera app instead. I really like the Open Camera app myself, but the Simple Camera app is quite good too:
Open Camera app
https://play.google.com/store/apps/details?id=net.sourceforge.opencamera&hl=en_US&gl=US
Simple Camera app
https://play.google.com/store/apps/details?id=com.simplemobiletools.camera&hl=en_US&gl=US
Both are Open Source (so no ties to any corporate oversight), free with no ads, and with active development support. The key point being both also have a lot of extensive options to allow the user to optimize their photo needs.

 

[Mooncatt]

In a typical, generic situation the cameras in our phones are much closer to being similar a over the counter, point-and-shoot, disposable camera than a more elaborate, very configurable, professional/hobbyist DSL camera, at least as far as all the autofocus, autoconfigure settings. Back when DSL cameras were the norm, it was up to the user to use the proper speed film (ASA) , the appropriate lens (standard, telephoto, etc.), and then adjust things like aperture and focus on-the-fly while actually taking a picture. Now, that's almost all done the camera app (software) in accordance to the capabilities of the camera module in the phone (hardware) where the user just starts up their camera app, point the phone, and tap a button.
So getting back to your query, if your face appears to be too dark when using the front camera (a.k.a. selfie camera) you have a couple of options. One is to have better lighting in front of you, there's too much behind you. Any camera is based on incoming light so when there's little light on your face but a lot of light behind you, the autodetection in your camera is adjusting to what the camera sensor is seeing, all that light that's flowing from behind you. So face into the light if possible, or have a lamp or something in front of you. Another option is to look into the settings menu of your Camera app and see if there are options to compensate for the lighting. There are probably adjustments for low light situations, where you need to manually set up your face to be better lit (but this will probably also result in the background being somewhat blown out, depending on the degree of differences involved). Or some camera apps allow you to manually set a particular feature (in this matter, your face) as the primary focal point, so your face is what the autodetection sensors will work off of. One thing to keep in mind is the rear camera is the primary camera with a higher resolution capability and more features, the front camera is going to be secondary camera, still adequate but with limitations. Also, the default Camera app on your LG phone might be very capable (be sure to play around with its user interface options, and check for more in the app's Settings menu), or not. If it is too bare-bones, you might be better off installing and using a third-party Camera app instead. I really like the Open Camera app myself, but the Simple Camera app is quite good too:
Open Camera app
https://play.google.com/store/apps/details?id=net.sourceforge.opencamera&hl=en_US&gl=US
Simple Camera app
https://play.google.com/store/apps/details?id=com.simplemobiletools.camera&hl=en_US&gl=US
Both are Open Source (so no ties to any corporate oversight), free with no ads, and with active development support. The key point being both also have a lot of extensive options to allow the user to optimize their photo needs.

Nothing you've said is inherently incorrect, but doesn't really apply to this question (except for the lighting suggestions). The OP mentioned the problem is with video chats, which means using something like Facebook Messenger. Unfortunately you can't use Open Camera or other stand alone apps, because any adjustments they apply will be limited to only those specific apps. Using the front camera isn't an option either, unless you don't want to see the other person.

 

[smvim]

Yeah, my mistake as I did drift off topic into camera apps and such. Apologies.

As for the original query, I still think the OP needs to focus on properly lighting their face, not so much the background.

 

[mustang7757]

When I use the camera for making videos & photos it's working great! Only, when I make video chats, the brightness of front camera (my face preview) is very dark.

I was looking on the net and in forums (but I didn't find the answer yet), how to set the brightness of the video chat camera preview on the right normal brightness.

Hi, welcome to AC!

Which video chat your using ?