Using Zebras, Exposure Compensation, ND Filter, and S Video Exposure Mode on Panasonic FZ2000
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I've elaborated a kind of video shooting "best practice" with the Panasonic FZ2000 in the past couple of days. I still need a lot of refinement and experimenting and practicing, though.
For video my primary exposure monitoring tool is Zebra Pattern. I keep an eye on the zebra lines on the main subject of my videos to make it not overexposed.
I configured Fn4 to enable/disable and change Zebra Pattern easily.
I enable both Zebras and Histogram. The fine Zebra lines are excellent on the Panasonic, less distracting than Sony zebra stripes.
The soft Fn10 button is available for switching on and off histogram.
Zebras work perfectly with Exposure Compensation.
Since I heavily use Exposure Compensation with Zebras, I assign the back/rear dial to be my compensation dial. This way I can directly adjust exposure, and the zebra lines are immediately reflect my adjustments. Simply brilliant.
I mostly use S exposure mode for videos with Auto ISO set to max 3200 combined with exposure compensation and zebras. S mode is the most convenient for my Exposure Compensation oriented shooting style.
In M exposure mode the rear dial is reverted to adjusting the Shutter Speed; so, the only way to change the ISO is to press the ISO button and adjusting the ISO; the problem with this kind of ISO adjustment is that while adjusting the ISO this way, neither zebras nor histogram are visible at all, unfortunately.
To make the dials consistent both in S and M mode for video, I changed front dial to SS and rear dial to F. So in both S and M modes the front dial is to control shutter speed; the rear dial in M mode is for iris, in S mode exposure compensation.
How can the iris be adjusted in S mode? In S mode I set the shutter to the 180 degree value. For 24fps I use 1/50th sec, and I let the camera adjust the iris and ISO (limited up to 3200) automatically, and the FZ2000 does it excellently. However, the actual F, nor the ISO numbers are not shown on the screen during video recording on the FZ2000, unfortunately. On my Sony A5100 the actual F-stop number is displayed during video recording in S mode.
In low light the FZ2000 first opens the iris and raises ISO afterwards. In good light, it decreases ISO down to the minimum level, then starts closing the iris. This algorithm is perfect to the highest image quality with the lowest noise possible. I would do it exactly this way; so why not then let the camera do this job automatically for me. When I want to adjust the exposure, I use the exposure compensation dial. I'd love to have a max F-stop setting, nevertheless, combined with Auto ND Filter; maybe in the next firmware.
This automated iris + ISO adjustment is perfectly fine, since the small 1" sensor of the FZ2000 gives enormously deep DoF even at f2.8 (corresponding to the DoF of about f8 on FF EQ). So, automated iris control is totally appropriate as done by the FZ2000.
When I need shallow DoF (f2.8 at 400mm as close to the subject as possible, for example), I change to M mode, and I set f2.8. The built in ND filters help here a lot here in harsh daylight. Auto ND filter is not available in video mode on the FZ2000. That is, ND filter is expected to set manually on the FZ2000. So far I wasn't able to find any meaningful way of using AUTO ND FILTER in photography modes.
The bottom line is:
In bright daylight I shoot in M mode (front dial SS, rear dial iris) after I set ISO to the minimum value (no auto ISO). To prevent too small iris, I use the built-in ND filter.
In low light I shoot in S mode (front dial SS, rear dial exposure compensation) after I set ISO to Auto (with max 3200). ND filter has no role in low-light videography. Exposure compensation controls both aperture and ISO automatically.