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Please help for a noob like me with simple words š
First off thank you all for your hard work with such powerful software and happy New Year!
Im on a mac silicon, Sequoia, using ultrastudio 3g decklink card tryng to create 3dlut for video monitoring to resolve. Im following this tutorial to make it:
My measurments are attached – Ive got bad verification results after applying lut into resolve, am I right a LUT need to be loaded into Resolve prior to verification ?Picture just looks more washed out. Im unsure if I need to change settings in verification page.
All the best
If you wish support attach full HTML report, not just a partial screenshot where lot of information is missing.
Regarding verifiaction there is an easy spotted flaw: you cannot make a 2.4 gamma LUT3D and then verify against rec1886.thank you for, reply, Ive attached the html, I must be doind something wrong as I get washed out picture after LUT is applied into Resolve š
You are verifying profile itself through Resolve output, likely with LUT3D applied (desaturation on CIE ab plot). So most your coniguration is wrong.
If display vas 2000:1 it may be that you have a HDMI levels mismatch on display.Redo from start, first of all check with some patterns if there is some HDMI level mismatch between whatever you are pluging your display to and display itself.
Then redo all and remember that verification must match whatever you put on LUT3D.
Also disable any fake HDR mode on monitor and windows, windows autocolor management and such.Thank you for reply, Im using 3g ultrastudio decklink, Im on Macbook m4 sequioa OS, Im following this tutotial
My monitor is Dell 27 Dell S2721QS which has no levels adjustments, the only difference from the tutorialĀ is Im using auto levels in displaycal.
I have no clue what might be wrong.
You’ll have to check step by step.
Disable any LUT3D in Resolve, try to measure display as is on custom color mode. If measurements match the behavior of display on that mode (though decklink + resolve, or plugged to your mac with “use mac profiles for resolve” disabled), next step is to verify (again without LUT3D) if custom profile matches display behavior.
When all these steps work as intended you can make LUT3D, add it to Resolve, enable it on your project and verify against Rec709 and the gamma of your choice.I cant make it work. Ive tried number of times, I bielive most requested topic here is LUT in Davinci with calibrite displaypro and ultrastudio 3g. It would be greatĀ help if some of you people with great knowledge recorded a video of how to validate the program to check if it did a great job.
Calibrite Display Pro HL on Amazon
Disclosure: As an Amazon Associate I earn from qualifying purchases.Hi, if I understand correctly what Vincent says, do you have an option on your Dell monitor named HDMI Level (HDMI Black Level) or something similar?
- Can you try to change that setting from Low to High or the other way around and see if that makes a difference after redoing the calibration.
- Also when you do the verification report please match your gamma as the one you are calibrating to, in other words set Tone curve to “Custom”, Gamma to “2.4”, “Absolute”, and Black output offset to “100%”.
Also on this website lagom.nl there is a Black level test, you can try to download the image and place it in Resolve, without any LUTs loaded. If the top black blocks appear completely black, than it means that your monitor HDMI Black Level is set incorrectly, and if you try to switch it, they will become visible again, and there should be a gradient of multiple shades of gray, with the first block being completely black.
Thank you for reply Sergij, You are giving me some hope !
I dont have HDMI levels in my Dell monitor, only black settings I can see is dark stabilizer which i read shouldĀ be set to zero to mantain monitor contrast ratio.
Ive downloaded the black level test from webite mentioned and I can distinguishall the patches and the gradient is present.
Going to proceed with recommended settings for verification.
I ve done verification with same gamma as calibration,Ā set Tone curve to āCustomā, Gamma to ā2.4ā, āAbsoluteā, and Black output offset to ā100%ā. Please see html verification attached.
Im a student of colos school masterclass, please help me, I bielive it can be done right as many people used this displaycal workflow with 3dlut in Resolve š
Also forgive me for a total noobie question,Ā Is something totally wrong if all i can see with my eyes after LUT is applied is just washed out image ? I compare color charts ant to be honest its jjust more washed out a bit, dont see any slight color changes, but yeah im a case of.a noob using professional software so bear that in mind.
I’m also not an expert/professional but I will try to help you. š
The latest verification you uploaded is better than the first one, I don’t see the colors de-saturated (compressed) in the Gamut, but it still looks bad, and I think that you can get better results. The fact that you see a washed-out image is also strange, but I don’t understand how that can happen, also by washed-out what do you mean, low contrast and raised blacks, or de-saturated dull colors?
If you are not sure if the image looks correct, and if you have an older Apple device (standard LCD screen with sRGB Color Gamut) like the iPhone 6 series you can try to compare it to your display, but do keep in mind that the iPhone will be slightly brighter in the shadows because it uses Gamma 2.2 instead of Gamma 2.4. But in terms of the color it should be very similar.
So please follow these steps:
- Just in case, you can completely Reset your monitor to Factory Defaults.
- If you don’t use HDR (which I assume you don’t) make sure you disable Smart HDR in the Monitor settings. Also disable any kind of Power Saving feature, I didn’t find that kind of option in the manual, but check just in case.
- There is a mistake in the Video (not a clear one) – Don’t set the Gamma to Absolute both when you calibrate and verify, set is to Relative (with the same other settings, 2.4 100%)!
- You can try to use this colorimeter correction for your monitor, it will most likely give you better results: https://colorimetercorrections.displaycal.net/hash/636f606d0c5a50c7bce04530c0c078ed/Dell%2C%20DELL%20S2721QS%20by%204KM%20%28i1%20Pro%202%29.ccss?download=1
- I think you can enable 10-bit output (and please do) in DaVinci Resolve’s Project Settings as your monitor seems to support 10-bit (specs).
- I opened your monitor’s manual, and I can see that under Color -> Preset Modes if you set it to Custom Color you can use that to adjust the R, G, B values, and that may give you better results than leaving DisplayCAL do everything (and I suggest you do this). You just need to lower them until you reach the specific point, and also you may have to adjust the brightness higher step by step, because it can get lower when you lower the R, G, B values.
- You can try to use this DisplayCAL version, if you still have problems. But first try all of the above steps, and if it still doesn’t work out try this one.
- If everything doesn’t work out or you want to be extra cautious, just in case disable that Override minimum display update delay, set Output levels to Auto in DisplayCAL, and maybe set Data levels to Full in DaVinci Resolve’s projects settings (but I assume you will have to do this for every project, unless you set themĀ as default project settings so try that). Also place that calibration thing in the center of your monitor just in case!
Please carefully read all of these steps and don’t hesitate to ask if you don’t understand something, I’m happy to help!
Incredible help Sergij! Its rare to find help from. others in todays world.
Im following this tutorial for calibration. as this man is using same setup.
The only difference is I cant switch my monitor to 2.4 gamma = there is no such adjustment direcltly in the monitor itself. Thats only difference from my setup. Is that crucial if i dont set 2.4 gamma phiysically on the monitor prior calibration in Displaycal ?
I belive this dell monitor 2721qs is capable of very good color calibration as Rating tested it with great success.
It would have been better if the monitor supported the 2.4 Gamma natively, but I think DisplayCAL should still be able to correct it so don’t worry, and there shouldn’t be a problem. Just follow my steps, there is a crucial mistake in the video. Also use the highest LUT setting like in your screenshot (65x65x65) if you don’t need it for something else.
Img getting low contrast and raised blacks = washed out image after calibration, all you other directions are followed.
there is a crucial mistake in the video.
Ā Donāt set the Gamma to Absolute both when you calibrate and verify, set is to Relative (with the same other settings, 2.4 100%)! = I understand i should set Gamma to Relative when doing verification and absolute when calibrating ?
I understand i should set Gamma to Relative when doing verification and absolute when calibrating ?
No, set Gamma to 2.4 Relative with Black output offset 100% everywhere (both when calibrating and when verifying). That may cause the contrast issues that you mentioned.
Also I suggest you to set the Calibration speed, under the Calibration tab, to Medium, and under the Profiling tab for Testchart choose “Auto-optimized” then drag the slider “Amount of patches” to 1553 or if you want it to be faster set it to 1155.
