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Messages - markanini

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1
General Help Q&A / Re: why doesn't try 10bit x.265+HLG/c-log @alex
« on: December 13, 2020, 10:42:05 PM »
You're acting like the developers didn't consider this?

2
Reverse Engineering / Re: Reverse Engineering Picture Styles
« on: November 20, 2020, 07:21:29 PM »
Thanks for the update, hope you are doing better by now. I've considered doing the neutral-standard profile myself. Maybe using a shot of a Kodak grey scale chart and color picker windows app as a guide should work?

3
Reverse Engineering / Re: Reverse Engineering Picture Styles
« on: October 26, 2020, 10:13:44 PM »
Works perfectly on my 600D.

4
Reverse Engineering / Re: Reverse Engineering Picture Styles
« on: October 26, 2020, 08:58:23 PM »
For shooting I find the picture profile makes a difference to an extent, because it affects my prefererad exposure and custom WB with other factors being equal.  That's why part of my shooing routine involves setting the contrast and saturation controls as close as possible to how I will be processing it in post(mostly doing photos).

Standards colors can look a mannequin-like on some people subjects, sometimes it looks more flattering on female subjects. Neutral looks more life-like but looses saturation in highlights.
Standards tone curve raises the shadows a bit while neutral lowers them. DPP adds shadow and highlight controls to picture styles and I use them a lot. It's a buggy piece of software though, previews often don't match the output and I'm pretty sure it's wide-gamut mode is broken. I created custom camera profiles for Lightroom using a color checker and they look more accurate and generally more useful than the included ones, but the stock Canon colors are simply more pleasing and require less work.

If you think it's possible to make a neutral PS with standard tone curve I'll certainly give it a try. A "backported" fine details sounds interesting too.

5
Reverse Engineering / Re: Reverse Engineering Picture Styles
« on: October 26, 2020, 06:52:54 AM »
Can I make a request? I wish to use a Neutral picture style with a Standard tone curve.

6
Post-processing Workflow / Canon colors to Cinestyle footage in Resolve
« on: September 30, 2020, 03:09:31 AM »
I generally like Canon colors so I let's see how close I can get. As a reference I used a Colorchecker shot using my favorite picture style: Neutral with saturation +1. First I applied the S-curve LUT. Secondly I focused om matching the tone curve using the bottom row of the chart.


Lastly I focused on the matching the primaries in Hue vs Sat.


I could go further but maybe not without reaching a point of diminishing returns. Left is JPEG, middle is Cinestyle, right is the result.

The main visual difference right now is that reds and oranges are more muted in the result.

Next step is to try some real life footage. Especially something with people subjects, because complaints of poor skin tones with Cinestyle are numerous. Canon JPEG colors have a good reputation for skin tones on the other hand.

Do you struggle with Cinestyle footage? Have you found a better method to correct Cinestyle footage and want to critique my method? Let me know!

7
Share Your Videos / Re: 3K mode vs 5K anamorphic quick test
« on: September 28, 2020, 02:10:02 AM »
A more interesting test IMO is: 5k Anamorphic mode using stock lens VS. 3k mode using a cheap ultra-wide like Canon EF-S 10-18mm. Or course make sure to match subjects and DOF or people will nitpick. I suspect the anamorphic mode will win in low light but I'm curious how much more detail you get using the crop mode and a cheap ultrawide lens.

8
1x3: no moiree.
3x1: a lot moiree.
H.264 uncropped is 3x1, correct? Is 1080 MCM 3x3? If so that could be considered a medium between 1x3 and 3x1 in aliasing and moire?

9
Camera-specific Development / Re: Canon 600D / T3i
« on: September 19, 2020, 06:02:20 PM »
I'm getting a black bar on the bottom of my liveview using magiclantern-lua_fix.2020Sep13.60D111.zip

10
Post-processing Workflow / Remove aliasing and moire on 1:1 H.264?
« on: September 18, 2020, 06:48:53 PM »
I wanna try improving some existing 1080p H.264 footage.

I'm considering:
1. Scale back to native 1736x976 using an AviSynth script
2. Perform some type of processing to reduce aliasing and and moire.
3. Perform a higher quality upscaling to 1080p.

It seems MLV doesnt support importing H.264, even though I would like to try out the details panel for the second step.

What would be some other options?

11
Cool. How do the 1x3 and 3x1 modes compare?

12
Do any cameras other than 5D Mark III have the possibility of reduced aliasing without using in a large crop like 3x?

13
General Chat / Re: New Canon Announcement: EOS Webcam Utility Beta Software
« on: September 14, 2020, 11:49:40 PM »
Works on my 600D/T3i but the stream gets cut off a lot with this message appearing briefly:

14
Shoot Preparation / Re: Best preset for film look
« on: April 07, 2018, 02:32:04 AM »
IME if you misjudged exposure or WB during shooting you will regret not using a flat profile or RAW. It's a different matter when judging a scene and the lighting. It helps to use a color profile that's close to your final look while preparing the shot. For less important shots it's convenient to get the finished look OOC and a bonus that you don't have to worry about banding. Either way you should use tools like a grey card or the Expodisc.

15
Scripting Corner / Re: Hand Held Helper Script
« on: April 07, 2018, 12:20:03 AM »
I understand. I meant to ask if whether the ideal max ISO used with your script should be the highest that doesn't use digital gain?

16
Scripting Corner / Re: Hand Held Helper Script
« on: April 06, 2018, 08:07:46 PM »
Thanks @garry23 that helps a lot. I assume the max iso should be equal to the max "canon analog iso" in the expo tab?

17
Shoot Preparation / Re: Best preset for film look
« on: April 06, 2018, 07:14:00 PM »
Sorry for the confusion, my settings are Neutral, contrast +1 saturation +2, NOT contrast:-1 saturation:-2. This is obviously not for grading in post but for getting acceptable results OOC.

18
Scripting Corner / Re: Hand Held Helper Script
« on: April 05, 2018, 08:27:40 PM »
Could you expand a bit on 2nd pass and Ev delta options?

19
Shoot Preparation / Re: Best preset for film look
« on: April 05, 2018, 05:37:16 PM »
Following up on quickly getting a finished look OOC, I've found @markodarko suggestion of Faithful, Contrast:1 Saturation:2 useful. Unfortunately I sometimes experienced blown out skin tones. Since then I've discovered that this can be avoided by changing the base profile to Neutral, keeping Contrast:1 Saturation:2.

20
Post-processing Workflow / Re: what converter to you you use
« on: October 19, 2017, 01:12:29 AM »
http://www.stuudio.ee/anothergui/ has useful presets built in

21
Reverse Engineering / Re: Reverse Engineering Picture Styles
« on: October 17, 2017, 10:08:09 PM »
I've seen a quite a few complaints about skin tones looking grey or plastic with different picture styles. Anyone here still facing that issue?

22
Reverse Engineering / Re: Reverse Engineering Picture Styles
« on: October 16, 2017, 05:55:48 AM »
Not following exactly what you are trying to do but hey, we're here to learn.
Basically, since we know how to create a linear tone picture style(see RGB_Gamma_curve.pf3 http://www.magiclantern.fm/forum/index.php?topic=16299.msg172770#msg172770) I'm playing with the idea of creating picture styles with my custom tone curve for photographic purposes. You might think this would be negated by shooting raw. While I agree with that, this would improve visual feedback while shooting. Here's the tone curve I want to try:

https://www.dropbox.com/s/3t8sq71bm3ku200/450D%20TC_Adobe.CSV?dl=0

Did you know that the custom profiles are accessible from a firmware dump? Not exactly sure how to do it but if you search a disassembly on a camera that had Cinestyle installed you'll see something like this:

Code: [Select]
"CineStyle":
fff01b44: 656e6943 strbvs r6, [lr, #-2371]! ; 0x943
fff01b48: 6c797453 cfldrdvs mvd7, [r9], #-332 ; 0xfffffeb4
fff01b4c: 00000065 andeq r0, r0, r5, rrx
...
Cool find. Do you think the values correspond to sharpness contrast etc settings or do they provide further insight on the picturestyle format?

EDIT:It's shouldn't be understated that separate RGB and L curve adjustment that we have now is really powerful. To illustrate this I developed a raw photo with the tone curve applied in RGB space, L space and 50% RGB and L.

Tone curve in RGB / Tone curve in L / Tone curve in 50% RGB, 50% L

RGB Reminds me of Neutral and Standard. Gray-ish skintones, overall yellow-leaning. / L Reminds me of Faithful. Pastell-leaning hues. Washed out skintones.  / 50-50 RGB-L  Has skintones with a natural definition, smoother tonal transitions and truer hues.




23
Reverse Engineering / Re: Reverse Engineering Picture Styles
« on: October 15, 2017, 05:16:32 AM »
Since I started developing my RAW photos with an awesome Canon 450D derived tone curve the prospect of bringing OOC previews closer to my final curve sounds too sweet to pass. My hacking skills are below the pay grade of most contributors in this thread, but I'm ready to do some testing so let me know if this sounds feasible. Perhaps this will be useful for for multi-camera setups too. Roughly what I want to do:
  • Start with a general purpose PS like Standard, Neutral or Faithful.
  • Using dcptool or dcp2json I extract my target curve from "Canon EOS 450D Camera Standard.dcp" stored in decimal form. (A large number of unique tone curves can be sourced from DCP files by Adobe, free to download.)
  • Scale the target curve by 50% to in order to apply it equally between L and RGB blocks. This should provide a good balance between saturation and hue accuracy.
  • The linearizing reverse RGB S-curve(discovered in Cinestyle) is converted to decimal and added to the curve made in the previous step.
  • Curves created in step 3 & 4 are interpolated and converted into hex and finally written into L and RGB blocks respectively.

24
Camera-specific Development / Re: Canon 600D / T3i
« on: September 03, 2017, 06:20:37 PM »
No silent module in latest build?

25
Shoot Preparation / Re: LV colorimetry
« on: December 08, 2016, 10:36:19 PM »
It seems DSLR Controller dev is working on implementing color conversions for LV mirroring: http://forum.xda-developers.com/showpost.php?p=69952745&postcount=3854

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