getting frustrated trying to figure out how to get a good picture

Analog gain is similar to ISO, it increases the light sensitivity (and noise) for recording, and cannot be modified during or after recording. With a Chronos 1.4 color model:

Analog GainDecibelsISO
1x0 dB440
2x6 dB640
4x12 dB1280
8x18 dB2560
16x24 dB5120

Digital gain is sort of like using a video editing app to control the brightness, and with that said you could think of it as a sort of convenience feature. However one neat, less commonly known feature of your camera, is that you can change the digital gain after you finished recording & before you save. Carefully just go back to the live recording screen and change your digital gain setting if during playback you feel like its too dark. So the output MP4 will use the digital gain setting you most recently selected, regardless if you shot the footage with that setting.

Both are handy when you need more light. With my 2.1 color, I can get relatively low noise results pushing analog to about 12 dB and digital to 2x.

Just make sure to perform black calibration after changing the analog gain setting to help minimize noise or other artifacts
 
I will look into that. I actually had time today to go to the range and film a little bit. In the shade it was dark but the fireball from the muzzle looks great. In direct sunlight it looks better but the fireball is not as impressive.

Still a lot to learn and understand.

The only thing I though of regarding Gain was amplifiers in Car Audio. Right out of highschool I was an installer for a number of years and big into car audio.
 
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