October 3rd, 2014, 12:28 PM | #121 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
Maybe I missed it somewhere, but does this camera offer cache recording?
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October 3rd, 2014, 02:24 PM | #122 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
Looks like the 128 GB G series XQD cards are going to come in somewhere between $ 640 and $675. CVP told me in an email they expected the street price to be around 400 pounds and BPM (out of Germany) is listing a price of 540 Euros. Maybe we will get a further price break on this side of the pond?
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October 3rd, 2014, 08:23 PM | #123 | |
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Re: New Sony FS7 4K XDCAM at IBC 2014
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Even with the fact that it is a heavily compressed file I found its overall color and luminance dynamics easy to work with as grade starting point. Very easy and quick to get a 'look' with. I'm not saying it's a grade that everyone will like but for my clients if I was to deliver something along the lines of the attached JPGs I know they would be happy. If anyone wants to look at the full grade both the original and my test files are available here. https://www.sendspace.com/pro/dl/trxs4i Chris Young CYV Productions Sydney |
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October 4th, 2014, 07:16 AM | #124 | |
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Re: New Sony FS7 4K XDCAM at IBC 2014
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Could you share some details like what software you used and how long it takes to set up a profile to achieve the look? As Alister mentioned, there are also guidelines on how to use the proper exposure levels when shooting in these log curves - any reading material you can point me to? |
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October 4th, 2014, 10:17 AM | #125 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
Most of my work is quick turn around and the budgets don't allow hours of grading time so a quick way of doing a simple grade without round tripping through DaVinci or some other time consuming software method was required.
This little exercise was done in Sony Vegas 13 using only Sony's Color Curves and the NewBlue ColorFast plugin. The ColorFast plugin for its price is pretty amazing as you can eye dropper select and manipulate almost any part of the image from highlights to shadows and in any of those areas tweak the tint, saturation and levels. You also have the ability to create grade masks if necessary. Once you have learnt the plugin it will only take you a couple of minutes to dial in a pretty acceptable 'look' that belies the little time spent on it. In Vegas you can save any combination of plugins you use as a 'filter' set and then re-apply them as required and if needed tweak from shot to shot. It's obviously easier when the footage you are working with has been exposed correctly, especially if it has been shot in any of the LOG modes. I haven't worked in S-LOG3 as yet but have done a fair whack of shooting and grading in S-LOG2 and find if I keep the max white levels to 59 IRE and skin exposure Zebras to around 45 IRE then all seems pretty easy to grade without much drama. Even in 8-bit recordings as long as you’re original footage was exposed correctly. If I need to get pretty aggressive on a grade especially with chroma-key grades then I shoot 10-bit to ProRes or DNxHD. The basic principles for exposing in LOG3 are basically the same although the levels are a little different. The easiest way for me to get exposure right so to speak is to use a waveform monitor. I use an Alphatron viewfinder that has an inbuilt WFM so that takes most of guesswork out. It’s one of the few viewfinders that incorporates a zebra function that can be set anywhere from 0 to 100 IRE. Makes exposing for LOG fairly straight forward. If the footage is exposed correctly you don't have to push and pull too hard in the grade to get a decent look. It's also made a lot easier if the footage you are working with comes from a camera with a wide dynamic range, such as the S7 is claiming. If it’s like any of the other Sony S35 cameras then it will have. Re reading material, well it was Alistair's early earlier suggestions that pointed me in the right direction when LOG material started to appear in cameras that mere mortals could afford, like the Sony F3. Just a reasonable amount of practice and trying different grading tools and methods was my way learning to extract the best out of LOG footage quickly. Chris Young CYV Productions Sydney |
October 5th, 2014, 10:54 AM | #126 | |
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Re: New Sony FS7 4K XDCAM at IBC 2014
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What I came away with - 1. Shoot in the S-Log3 mode and keep the MLUT off for internal recording so your footage remains S-Log3. 2. For most purposes use LUT 709(800) for the viewfinder.(you mentioned using this most often). Zebras kept at 90%? 3. Bring the native S-Log3 footage into my NLE and apply the same LUT (or other customized LUT) to the footage - either globally or clip by clip (would prefer global). Where I may have a problem is that I'm not sure if I can apply LUT's in Edius Pro 7 - (as you can in Premiere Pro via plugin). 4. Where I may have a problem is shooting in either a higher or lower E level depending on lighting conditions - are you talking about changing settings on the menu or changing gain levels and then adjusting iris levels accordingly (I apologize if this is a stupid question). |
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October 6th, 2014, 01:53 AM | #127 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
If you use the 709(800) LUT and shoot a white card the white should be around 90%, so you can use 90% zebras if you wish.
Ideally, when working with log you want to grade using a proper grading tool such as DaVinci Resolve. LUT handling will be easier and grading capabilities better. However some NLE's such as Premiere CC have built in grading tools and can add LUT's. I don't know about Edius, but at the very least you should be able to edit in Edius and then export an XML file which would allow you to open your project in Resolve for finishing. In the cineEI mode you are not changing the gain of the camera overall but changing the gain of the LUT's. So the LUT's become brighter/darker. In response to a brighter/darker picture in the viewfinder you would then close/open the iris to gain a "normal" looking exposure. This the alters the brightness of the recording, which you will then adjust further in post. CineEI is a tricky concept, you have to stop thinking about camera gain and think more about post production gain. The aim is to get the best "digital negative" that will provide the optimum results after grading. Without grading it might look like rubbish. The grading aspect, which might simply be done with a LUT is critical to the final result. I'm running workshops at the Vistek event in Toronto on Oct 15th/16th, then at the SEVA film festival in Virginia Oct 18/19th, Midtown Video, Miami Oct 24/25th, AbelCine NY, Oct 28th.
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October 6th, 2014, 05:14 PM | #128 | |
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Re: New Sony FS7 4K XDCAM at IBC 2014
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October 6th, 2014, 07:43 PM | #129 | |
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Re: New Sony FS7 4K XDCAM at IBC 2014
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October 6th, 2014, 08:39 PM | #130 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
While there is no import/export for the YUV Curve in Edius, each node is based on values of 0-255 in each X and Y axis. So it does seem possible to create and save a YUV Curve by editing the nodes from curve data.
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October 6th, 2014, 09:03 PM | #131 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
So, if someone posted the X/Y values for each node, I could recreate the YUV Curve. Too bad it's not easier in Edius.
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October 6th, 2014, 09:15 PM | #132 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
As you requested:
Also the link on the original discussion: http://www.dvinfo.net/forum/grass-va...edius-yuv.html |
October 7th, 2014, 12:57 AM | #133 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
But a simple curve won't sort out the color space correctly, that really does need a LUT to be done right. Not saying you can't grade without LUT's but it's a heck of a lot easier if you can use LUT's. With LUT's you can build up a collection of looks that you can quickly apply in a matter if minutes. In addition if you really want to take full advantage of the CineEI mode in the FS7 you are probably going to want to find a way to generate your own LUT's to upload to the camera.
Don't be afraid of round tripping from your edit package into a grading package. It's normally pretty straight forward and the additional tools and features you'll find in a good color tool such as Resolve can transform the look of your work.
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October 7th, 2014, 08:15 AM | #134 | |
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Re: New Sony FS7 4K XDCAM at IBC 2014
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Edius has recently made this significantly easy (see the instruction file from Edius/Grass Valley): http://www.grassvalley.com/docs/Appl...US_DaVinci.pdf Once I have my clips in Resolve I assume it is a simple matter to apply say the Rec709 LUT from the camera to the clips as a starting point? If I get bold enough could I then tweak the look of the LUT a bit and save it as a user present and reimport it back to the camera (I believe you mentioned 3D cube)? I was dreading this but now am looking forward to playing around with it before my FS7K arrives in December and be up to speed for LOG grading and editing. Thanks again for the advice. PS - After some more reading - to render back to Edius in 4K I will need to pony up $1,000 for the full version. Last edited by Barry J. Weckesser; October 7th, 2014 at 10:25 AM. |
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October 8th, 2014, 05:30 AM | #135 |
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Re: New Sony FS7 4K XDCAM at IBC 2014
You only need the full version if you want to render at 4096x2160. The lite version will do 3840x2160 which is the consumer TV 4K standard. The FS7 won't have 4096x2160 at launch anyway.
Yes, once in Resolve just add the LUT you want. All the standard Sony LUT's are available to download. For a REC709 output you would nominally use the 709 LUT. Another very popular LUT for Sony S-Log3 footage is the LC-709A LUT which mimics the Arri Alexa extremely closely. As Sony's S-log3 and SGamut3 is very close to Cineon and Arri's LogC most LogC LUT's can also be used if you want different looks. If you apply your chosen LUT as an output LUT in Resolve it gets applied to all the clips. Then you can still fine tune each clip on a clip by clip basis if you want.
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