GH4 GH4 V-log?

I like the gh4 but it's pretty noisy in low light as we all know. It's not a huge issue as we have all been shooting for long enough to compensate for it. However v-log will need to accommodate for the noise. The flatter you shoot with this cam significantly increases noise levels on the other side.
 
I reckon the new camera at the NAB 2015 will be the succesor to AF101. Anyway the specs sound too good to be true, will wait for reviews.
 
@Mr. Bill,

I've come from still raw photography, and got spoilt by what one can do to grade those images - my experience is that to get decent color one needs to be able to redo the white balance. And also, as I shoot with no lights, I have DR issues with the GH4 files. As far as I can see, my rushes look pretty decent - but I'd expect to be able to massage them more. If I can't do more in post, I'm going to have to change the way I shoot.

Edmund

mr bill said:
@edmund - I'm surprised that one wasn't released on April Fools day. Why on earth be so fixated on a new camera release when you can make great images with the thing you have in your hand? Maybe you should have bought a BMCC
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Bern Caughey said:
16+ stops of dynamic range!

That's greater then Panasonic's flagship Varicam & even Arri's Alexa. Unbelievable!
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Amazing to me how many people believe rumor sites and repeat the information as if true. Especially when 99.9% + of the silicious "rumor" information is false.
 
@edmund - there are undoubtedly cameras out there that will do what you want. Just don't expect to pay GH4 money for them.
 
@Mr. Bill, I think the GH4 could be hacked to do this type of thing. I understand that Magic Lantern has had a lot of success, and that the original GH cameras were hacked :) Having a codec that writes much better color out @25pHD should be possible, the GH4 datapath has the throughput as it can do 4K. Once you have big DR you can overlay just about any look on an image without breaking it.

I'm actually astonished at what the GH4 can do imagewise.

Edmund
 
Illya Friedman said:
I do. But I'm not saying.
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Inderstandable!! because of NDA and all that...But I have to say in comparison to Panasonic...Samsung has been very aggressive with quite comprehensive updates , new features and a Log profile.
Yet their camera has only been out quite a short time compared to the GH4, so they are either much faster software/firmware writers or they have less hierarchy and red tape within their camera company..
or Panasonic is going to do a large and comprehensive firmware update that they have been working on for a long time.
I am hoping its the later, but I suspect its the former based on their performance so far!
I understand you cant say much, but in this case little information is basically the same as no information...is it worth waiting for for example?
I can get an NX1 tomorrow and I am tempted to be honest, but I do love the GH4, so maybe keep it and have both, I may have to go ahead and possibly waste some money and do this...because right now I have to decide
after the mysterious firmware upgrade is released (god knows when...and contains god knows what) LOL!!
 
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edmundronald said:
@Mr. Bill,

I've come from still raw photography, and got spoilt by what one can do to grade those images - my experience is that to get decent color one needs to be able to redo the white balance. And also, as I shoot with no lights, I have DR issues with the GH4 files. As far as I can see, my rushes look pretty decent - but I'd expect to be able to massage them more. If I can't do more in post, I'm going to have to change the way I shoot.

Edmund
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I come from a background where I was taught how to white balance and expose properly. It isn't difficult. You appear to be wanting Panasonic to release a new camera based around what seems to me to be a compromised workflow. Sure, we all grade but I don't need raw to get decent color. And if it is your choice not to shoot with lights, why not buy an A7s?
 
I don't expect anything from Panasonic, but I think that Raw would be a nice firmware feature. Canon users have the same attitude of liking the cameras but wanting more features, that's why Magic Lantern has been such a success. In fact I think the GH4 cries out for a firmware hack as it is cheap and capable.

Now concerning white balancing, actually in mixed light, eg. if you go in a diner and they have inside lights and windows, or in an office with lights and windows etc, it is almost impossible to get the wb right at shoot time. I mean you can do it, but if you can do a real wb with raw post-shoot the results will improve hugely. The same is true in a cityscape where if you use a card you will overcompensate for color reflections, but if you do a postfacto wb you can eliminate them and clean up your color. The cleaned up image is then the departure point for your "look" grading. I used to be a member of the ICC committee, and was one of the people who helped Xrite design the Passport wb tool, so I actually understand digital color to a point :) Raw is a magic bullet for color, just like AF and burst drive is a magic bullet for still sports photography. A lot of photographers have explained to me that I shouldn't use AF, but I find it useful, so do many others.

Edmund
 
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edmundronald said:
I don't expect anything from Panasonic, but I think that Raw would be a nice firmware feature...
Edmund
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With a minimum SD Card speed of 30MB/s, do you think there is enough bandwidth to write RAW internally? I most certainly think there aint enough speed to write 4K in RAW, but maybe 1080p.
 
I dunno. If we assume 4K=8MB/Bayer with log compression on the Bayer like Leica did for the M8 DNG files, then we would need to write out 8MP*25fps = 200MBps = 1600Mbps.

But if we want to write out 2MP HD Bayer, we get 1/4 of that = 400Mbps, and some simple intra-frame compression should bring it down to the 200Mbps which we know the camera can do to card internally.

In fact I think one could do much better, but there probably is no Raw codec available off the shelf to do the compression.

I think HD Raw to an external recorder via HDMI should be pretty easy even now, if Panasonic wanted to enable it. Whether it will be done is dependent on whether there are requests, and the low-end video crowd seem to prefer their data cooked these days.

I dunno, maybe someone who knows the exact requirements and compression schemes of CinemaDNG can comment; I think Red historically and Blackmagic also do Raw so it's not exactly innovation, but they may have beefier on-camera processors.

Edmund
 
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edmundronald said:
I don't expect anything from Panasonic, but I think that Raw would be a nice firmware feature. Canon users have the same attitude of liking the cameras but wanting more features, that's why Magic Lantern has been such a success. In fact I think the GH4 cries out for a firmware hack as it is cheap and capable.

Now concerning white balancing, actually in mixed light, eg. if you go in a diner and they have inside lights and windows, or in an office with lights and windows etc, it is almost impossible to get the wb right at shoot time. I mean you can do it, but if you can do a real wb with raw post-shoot the results will improve hugely. The same is true in a cityscape where if you use a card you will overcompensate for color reflections, but if you do a postfacto wb you can eliminate them and clean up your color. The cleaned up image is then the departure point for your "look" grading. I used to be a member of the ICC committee, and was one of the people who helped Xrite design the Passport wb tool, so I actually understand digital color to a point :) Raw is a magic bullet for color, just like AF and burst drive is a magic bullet for still sports photography. A lot of photographers have explained to me that I shouldn't use AF, but I find it useful, so do many others.

Edmund
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It is not impossible. professional video shooters have done it for decades without having RAW. Don't use RAW as a crutch to think something cannot be done. RAW is actually a very rare thing in the camera world. Sure it is nice but tens of thousands of professional shooters for decades have worked around this. I suggest you learn how video works. It is a different game to shooting stills.
 
Thomas Smet said:
It is not impossible. professional video shooters have done it for decades without having RAW. Don't use RAW as a crutch to think something cannot be done. RAW is actually a very rare thing in the camera world. Sure it is nice but tens of thousands of professional shooters for decades have worked around this. I suggest you learn how video works. It is a different game to shooting stills.
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Filmed a very dim concert with my GH4 and a BMCC 2.5 (both 12-35 2.8) and a LX100 (at 2.8). Both GH4 and LX100 were set to ISO4000 at 4k, the BMCC at ISO1600 with 2.5k RAW. Guess what! The BMCC produced an ugly image with tons of noise, hot pixels and vertical banding. The GH4 and LX100 were many times better, without RAW. :D

But still. Using LOG would made grading a lot easier for that kind of look (scenic, filmic etc.) I try to achieve. :)
 
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