I hope you pointed out to the DP that it might not be such a good idea to adjust the aperture DURING a shot that may be used! And you can borrow my Artist Color Panel to emphasize the point if you think it will help. ;-)
--- In Avid-L2@yahoogroups.com, Michael Brockington <brocking@...> wrote:
>
> Thanks to folks who chimed in on this thread. It turns out the
> issue is not due to autoexposure on the GH2. Rather, according to the
> DP, "the lens used didn't have an aperture ring so the aperture had to
> manipulated via the camera and not the lens - and unfortunately the
> system has click stops so isn't very smooth."
>
> The BCC flickerfix effect wasn't much help with fixing the problem.
>
> Sapphire's flicker removal filter worked quite well for smoothing
> out single exposure jumps, where the change occurs over 1 frame. Where
> the shift took 2 frames, the jump was still pretty visible. Problem
> with this footage is there are about 8 exposure changes over the course
> of 10 seconds, with the camera moving. Using the sapphire plugin to
> match to exposure levels at the end of the shifts, for instance, means
> the footage at the start of the shift gets compressed to a very narrow
> range of luma values. It can be stretched out again via CC, but is very
> degraded -- tons of banding. I think this could be minimized by working
> in a higher bit-depth. It seems like the Sapphire filters support
> floating point in After Effects, so that might be worth a try.
>
> Cheers,
> --Michael Brockington
>
>
> On 12-07-31 11:50 AM, Michael Brockington wrote:
> >
> > I have some footage from a Panasonic GH-2. When it pans from light to
> > dark areas, it shows a very step-wise change in exposure, rather than a
> > smooth change. Exposure jumps from 1 setting to the next over 1-2 frames.
> >
> > Is this a known issue with the camera, or more of an operator issue?
> >
> > Has anyone come across a good solution for smoothing out this kind of
> > thing? I suppose I could use add-edits at the jumps with CC to try to
> > match the 2 exposures, but it looks fairly difficult to get the match to
> > be imperceptible when the shot is continuous.
> >
> > Any magic plugins to recommend, either inside Avid, or using some other
> > software?
> >
> > Thanks,
> > --Michael Brockington
> >
> >
>
>
>
> [Non-text portions of this message have been removed]
>
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