- This topic has 7 replies, 2 voices, and was last updated 7 years, 9 months ago by
.
-
Posts
-
- Offline
Hi
i get a green cast near black on my 500M after profiling
wb near black isnt spot on before i profile is that a problem?
just wonder how important it is to adjust white ballance before profiling?
clearly dispcal boosts the green color to much near black.
when comparing near black greyscale without the 3d lut its completely neutral
Please attach the profile and 3D LUT (“Create compressed archive…” icon next to “Settings”), thanks.
- Offline
here you have it
its only up to 4% white i get a green boost
at 5% dE is only around 6
from 1% to 4% its up to dE 17
http://privat.bahnhof.se/wb192876/madVR%202016-07-14%200.3127x%200.329y%20S%20XYZLUT+MTX.7z
- Offline
can it be the meter that has problem reading near black or do i need a longer readtime for those low levels to get an stable result?
meter is a profiled i1D3 which you made the correction file from here if you remember
Calibrite Display Pro HL on Amazon
Disclosure: As an Amazon Associate I earn from qualifying purchases.
- Offline
i also wonder since this modified 500M has blacks close to 0
to get more stable results near black can i raise blacklevel some when profiling?
and then lowering it back to what i use to have after
- Offline
as an example i had to raise integration time to 2 or 3 seconds in chroma pure with 3 measurement smoothing readings to get stable results from 5% white when checking grayscale.
lower than that and i got different results at 5% and also 10% every time
since these are even lower levels maybe a read time of 4-5 seconds is needed?
dont know exactly how long it takes to read those low levels when profiling but it seems it goes faster than what i have in chroma pure
- Offline
so no fix for this crap rigth?
fucked up grayscale from 1% to 4%
3d lut screwed up the white ballance when its perfect from the 500Ms native
this green boost near black is clerly visible on low apl scenes.
one tip
you must use a higher read time with dispcal near black with the i1D3 meters
its to fast right now with inconsistent readings as follows
its time to look at another program i think 😉
fucked up grayscale from 1% to 4%
You need to learn how to properly check grayscale, then you would have realized that equal RGB steps (R=G=B) stay equal through the 3D LUT. So wherever your green cast is coming from, it’s definitely not the 3D LUT.
you must use a higher read time with dispcal near black with the i1D3 meters
its to fast right now with inconsistent readings as follows
Hogwash. The i1D3 uses adaptive integration times through Argyll CMS, near black up to 20 seconds.
