Adusting the exposure when video recording on the Panasonic G7 camera

uncle dunc wrote:

alcelc wrote:

However auto ISO is limited to still shooting, not allowed on video yet...

I think we're confusing the guy. If you set the camera to M mode on the mode dial, (not Creative Video mode on the mode dial) auto ISO is available. I just tried it on my G7 - Rolled some video and panned between a dark corner and a bright light. It took the camera a couple of seconds to readjust so the bright light wasn't activating the zebras.

Dear friend, I don't own G7.

All I did was consulting with the manual and upon my experience on Panny bodies (6 models including G85 in last 11 years) only. I had not checked whether would G7 allow Auto ISO in M ( still shooting). I expected it is not because its similar generation sibling GX7 does not.

If your Mode dial is not in M-video, I assumed you took video by the red REC button. If so, you are actually using the automatic mode (should = P of M-video). The automatic brightness adjustment was just P tried to maintain a 0ev exposure. Under auto mode, the camera can adjust any parameters from f/stop, Shutter speed to ISO as long as it is available.

While you shoot video, no matter using the automatic video mode by the red REC button or the M-video, any previous setting made in P/S/A/M of still shooting modes will be ignored. Any setting for video must be set under any of the P/S/A/M of M-video mode.

What the Exposure Compensation I suggested to OP is, for the cases that 0ev metering exposure does not give a dark or bright enough frame as we wanted (commonly happened on still shooting).

Wish I can clear it up.

Except my wrong guess on G7 has no Auto ISO in M for still shooting, are we on different page?

After communications I found that the real problem of OP was that he used M mode of M-video. I tried to direct him to shoot in S mode of M-video which has Auto ISO support and it could be the solution. Are we both pointing OP to the same direction?

This particular discussion concerned the red REC button was to clarify Uncle Dunc's suggestion (Mode dial in Still shooting, record video by the REC button) has nothing to do with video.

When my Pannys has M-video, I never use that red REC button anymore. (For avoidance of doubt, and I suppose you know it well, when we are in M-video, start and end video by shutter button or REC button is the same).

uncle dunc wrote:

alcelc wrote:

However auto ISO is limited to still shooting, not allowed on video yet...

I think we're confusing the guy. If you set the camera to M mode on the mode dial, (not Creative Video mode on the mode dial) auto ISO is available. I just tried it on my G7 - Rolled some video and panned between a dark corner and a bright light. It took the camera a couple of seconds to readjust so the bright light wasn't activating the zebras.

OP - the 180 degree shutter rule is the same as shooting 1/60th for 30p video, or 1/50 for 24p video. I'm really not familiar with shooting in any of the auto modes, but I would choose M on the mode dial so you can set your shutter to 1/60th and your F stop to where you want it. If you want less depth of field, you'd go to your lowest F stop. if you want more depth of field, you'd go higher, but try not to go past F/8 or F/11 so you can avoid diffraction. I would do these setting with a manual ISO setting so you know how much leeway you have with the ISO, keeping in mind, the higher your ISO goes, the more grain you'll get.

Once you have all your settings the way you want them, push the ISO button and select Auto ISO.

The problem with auto settings is that you can't control the camera, the camera controls you. White balance especially can look horrible when it changes during a shot. The colors change hues. It's not pretty.

Thanks uncle dunc for the useful info.

Brian

Good to know hindesite.

Brian