is there a way when you switch between aperture priority mode and cinema mode and back for it to keep the iso settings and colour profile without having to manually adjust them back again each time ?

Hi,

My gh4 makes a strange short sound when im doing Af with an aperture of F9 or higher. Same "problem" on all my lens but no problem at f8 or lower, when im doing af during video, no problem either. Anybody else experiencing that ?

@Magnus13

Go to service center, no need to google :-)

Until now, I've had no issues whatever with my GH4.

I just got a new MustHD M701 monitor to use while shooting Video. It works so well and the zoom feature is so good that I want to review some of my bowling videos on the spot while practicing so I can make adjustments in my swing and release.

The GH4 will not playback a recorded video thru the HDMI port. Hopefully this will be addressed in the next firmware due in September. Atomos mentioned on their website that HDMI output issues are being addressed.

That is typically an issue where one channel is totally "blown" or clipped, and one tried to recover as much in the highlights as possible. Back in the first years of RAW stills processing, it was a very common thing. Now, it's much less common. Back around 2004, I had the earliest Lightroom, Bibble, and Capture One raw converters on my computer. Some files would have the weird color issues in the clipped whites in one or two but just go white in another. So at times I'd have to process images from one shoot in all three processors just to get them "clean".

At times it would be pink ... at times yellow ... at times green ... and I even had an occasional orange-pop color. Really bizarre ... there were often hard lines where it was going towards light and BAM it turned color.

As a practical matter, you might want to check your metering whilst shooting ... don't want to sound hoity-toity, but it's awful easy to just be off a bit. Don't know how many times I've re-learned that solution.

Magnus 13 At first I thought you were trying to focus on the camera strap Then I noticed that you have the lens cap on.

Here's the answer. Don't use CINE-D in low light situations! it is a very flat profile and brings out noise much more than other profiles. It seems like when it comes down to it, the common link between people with noise issues is the CINE-D profile.

@tylerknight I've not run into this with my GH3, and other than at NAB I haven't had a GH4 in hand ... this fall sometime. You might want to message me about this, see if i can play with an offending file and figure it out ...

Neil

@edasan ...

First ... This isn't a RAW or log camera, where white-balance can be set in post. For best files from the GH cams, you MUST get a good working white balance before beginning your shot.

Second ... in-cam contrast and saturation should be set "conservatively" in order to maintain as much to the mid-tones as possible, but not "flat". Lifting areas that recorded as shadow tones into the mids in post will get you noise. And always note that both in shooting and in post, contrast (luma) and saturation (chroma) data are inextricably inter-linked. Messing with one messes with the other. Study that for best expectable results.

Third ... I STRONGLY suggest getting a decent hand-held meter and use that rather than the camera's meter ... this gal was WAY under-exposed. WAY. The direct-reflections of the light in mirror surfaces may have been wacking the camera meter out. By the time you lift her upper/mid-tone skin areas into the IRE place they "should" be, you've lifted a ton of shadow-recorded pixels & re-mapped them as mids. Deep shadows have become upper shadow areas. Shall we say, noise is now prominent?

I took this into Speedgrade and worked on corrections ... boy, this baby is so far off-wb that trying to correct it is tough, and you've got to "bend" the file a lot. Not good ... these cams produce good usable files but not the "deep" files of the full-bore pro cams like an Arri or Red. You can't bend these as far.

First shot is just the image loaded into Speedgrade with the scopes showing ... not how low the parade & waveform are, and especially how the colors in the parade are off-kilter. You've got some good "neutrals" there in the blacks & the doors, that should be pretty close in the parade ... and are not.

Second is after a basic correction pass ... had to way lift contrast & gamma whilst pulling back the ultra-far highlights. Drop blacks a bit ... then do a lot of adjusting of color, wow. And add a lot of sat. TOO much sat needing to be added in post for best results with a GH. In my humble opinon, of course ... not really satisfied with the result, so after I couldn't delete the second, added a third a bit better ... but ... a nailed wb, bit higher exposure in the original shooting would have been a snap to work with.

In addition, there's a pro dop on another forum by the name of Eric Naso. He has a good blog, and I have much respect for his opinion. His biggest piece of advice is to turn NR down to -5. It's a real detail killer and works against decent skin tones. From my own tests, I can only agree

I'm not the tech expert for noise analyzation like some are around here. I just try & avoid it as much as possible, then ... deal with it within the software as little as possible. Realistically, the stuff I deliver isn't normally shot where noise is gonna be an "ish" to begin with, and when it is ... well, that's of stuff the client/friend/family is just thrilled to have something. Um ... normally. ;-)

There are several cine-specific meters, and also some that are general meters with good function on the stills side. Do you do much still, or primarily video? If so, there's a Sekonic cine meter that's both decently small and rather inexpensive that would work great. L-398A and L-308s both a bit above $200 USD new. There's a LOT of decent meters available used, too. I come out of stills, and have used the L-358 Sekonic for quite some time.

Most welcome, of course.

@AdamT Good call, I forget to mention that one as it seemed to mess up my clips when I first experimented with it so I never even think about it anymore. Yea, iDynamic oft gives "the Gift of Noise" ... sheesh. And other crap too ...