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Messages - choobysnacks

#1
Just an after thought, I happen to realize that I had a VERY cheap variable ND filter on the lens. I have been shooting with the 5D for sometime now and not once have I noticed CA. This has been the first time I opened up ND filter and thought I would give it a shot. I know I won't know for sure until I do a side by side comparison, but thought I would ask if anyone had any thoughts before I perform some extensive test. Could this be the culprit? The ND filter is: http://m.ebay.com/itm/Fotga-77mm-Slim-Fader-ND-Neutral-Density-Filter-ND2-to-ND400-Wide-Adjustable-/261027810137

Thought I would ask, sorry to double post
#2
Thank you everyone for your replies. It seems that it is best that i stick with editing in DNG files if there is any flaws with my footage (hence the significance of raw) however, i am having a hard time with this process. Basically this is what i plan my workflow to consist of. I like MLRawViewer, so i will remain using it to convert to prores and adding an Slog-2 lut because i like the extra bit of dynamic range it gives. However, my difficulty stands when i bring my footage into after effects to fix CA. My question is, where can i download the same Slog-2 LUT (as in MLRawViewer) so that i can fix the CA in ACR and then add the Slog-2 Lut to then output in Prores to bring back into Premiere? Essentially I want to output from after effects with the same flat look as if I were to output from MlRawViewer after my adjustments have been made in ACR.

Thanks again  guys!
#3
I have not been able to get MLVFS to work. I have tried before using .RAW files and it does not seem to convert them. I like using MlRawViewer because I can apply an Slog-2 LUT right into prores from there. Anyway that I can apply that LUT in after effects?
#4
Thank you very much for everyones replies! I would have never guessed it was Chromatic Aberration.. I was using a 24mm L-series lens, which surprises me because its not a cheap lens..


Quote from: Kharak on May 28, 2015, 12:48:27 PM
Simple fix is to open the file in AE and fix the aberration in ACR.

Quote from: Andy600 on May 28, 2015, 02:27:12 PM
There is a small amount of CA and your WB was off but nothing ACR couldn't fix

I was able to address the fix in ACR via the "Remove Chromatic aberration" in a DNG sequence. However, my only question, is there a way that the CA can be removed once i convert to ProRes 444 from MLRawViewer? I prefer the workflow of prores and like that i am able to convert with a flat profile (as seen in my above grabs) I suppose that i cannot enable ACR in after effects if i have already converted to prores? Or would this require a different way of removing CA if not in a DNG sequence?

Quote from: ItsMeLenny on May 28, 2015, 03:14:46 PM
Sorry for wasting your time earlier :P

No worries! New insight is always beneficial!
#5
@Kharak
Here is a link to the .RAW file from the above screen grabs. If anyone has a workflow that eliminates the pink highlights, i would greatly appreciate the input!

Link: https://www.dropbox.com/sh/0tf643qo1gx10b8/AABYWefm63e-M2cwB6gjP3Z9a?dl=0

Thanks again for the great support!
#6
I am on Mac. I tried MLVFS, but I prefer to go right to prores instead on a DNG image sequence. Also when shooting in MLV I don't like that the screen becomes full screen on the camera. I have set my aspect ratio within the menu but then by the time I hit record the aspect ratio goes away.. Am I doing something wrong? I assume I can chose an overlay with the correct aspect ratio, but I like that when shooting in RaW mode the aspect ratio remains the same as it has been set. I hear that MLV(version 2.0) is a better format than shooting raw (version 1), so maybe this is where my problem with the pink highlights lies..?


Just tested this with previous versions of MLRawViewer, and raw2dng and i am still getting sign of pink fringing on highlights. any thoughts?
#7
Quote from: Kharak on May 27, 2015, 02:09:35 PM
What version of PP are you using? And what converter?

But if you see the highlights outside of Adobe, then change your converter.

MlrawViewer, MLVFS and RAW2CDNG are the latest converters with correct Black level.

Thank you for your reply!

I am using the latest 2014 update of premiere. Also, I am using the latest update of MLRawViewer (1.4.3 I believe) I can see the pink fringing in MLRawViewer, which then is present in the prores QuickTime files I convert to afterwards outside of premiere (QuickTime player) I have noticed that there is a "fix black level" (going off of memory here) within the magic lantern menu. Should this be turned on? I am also using the latest nightly 1.2.3 ML.
#8
***Updated Post***
#9
Hello everyone,

I just want to start off by apologizing for the double post. After searching the forum i was able to find the answer to the weird pink highlight issue. I came across the Resolve method but found that using the video limiter effect within premiere pro seems to have worked the best. For those not familiar with the process ill post a tutorial below. Anyway, regarding my question, using the resolve method http://www.magiclantern.fm/forum/index.php?topic=6845.0 and the Video limiter effect in premiere are the only two options at the moment to slightly resolve this pink highlight issue?

My workflow is as follows:
.RAW file converted in MLRAWViewer then transcoded into ProRes (to add the Slog-2 LUT)

Here are my settings:


If you intend on using speedgrade for color grading, make sure that your "Lumetri" effect is placed UNDER the "Video Limiter" effect or the pink highlights can become present if otherwise.

Video Limiter Off:


Video Limiter ON:


However, the only issue with this method is if you look closely at the garbage bags in the background outlined by the red circle, you can notice that in some situations the limiter causes some weird color artifacts when you push it too far. Unfortunately, if you increase the "Chroma Max" value to much, it will reduce the artifacts, but bring back the pink highlights..

Any thoughts? I heard adobe was going to address a fix to this issue, but the pink highlights are present outside of adobe. It seems that this is something introduced from raw files in general.

Again, sorry for the double post, i hope that this is more specific and may help some user with this same problem.
#10
Quote from: DeafEyeJedi on May 22, 2015, 05:23:36 PM

Try using a later version of MLRV (1.4.3) because I've seen black frames happened to me before with ProRes files spitted out from earlier versions of MLRV.

Version 1.4.3 resolved my issue. The black frames are no longer present in this version. Turns out it was just the converter after all.. Thank you very much!

However, I hear a lot of good things about MLV. Besides the advantage of sound, what am i benefiting by filming in this format? Are the file sizes smaller? I really like the dynamic range i am getting while shooting raw, will i still have that ability shooting in this format? I guess i have read up so much on RAW that i am not too familar with MLV.

Thank you both for your help! @dmilligan
#11
Quote from: DeafEyeJedi on May 22, 2015, 06:17:51 AM
Which firmware MLRV are you using?

I just downloaded it, i am using 1.3.3. is there a later version?
#12
The "Black frame" is present in the dng files as well. However, i have download Raw2Dng converter, and for some reason the converter does not work when i use this file. It gives back an error every time i click and drag the .RAW file into the GUI. The weird part is that Raw2Dng does NOT give back an error when i use a shorter duration clip.. For some reason, it seems that these .Rxx files are what is causing the problem. I don't know why, but these files are only generated when the clip is of a longer duration. However, when i film a clip only of a few seconds, these files are not generated. I have attached a grab that shows these files. (ignore the .MRX file, because that is the file generated from MLRawViewer for some reason.) The .Rxx file are generated from magic lantern.
#13
I will try a different converter. I have not checked in a dng sequence. So far I have just been exporting to prores. As I was reviewing some clips a noticed that there was a weird flicker in the clip. After taking a closer look I realized that there was a black frame placed randomly in the clip. There were two of these black frames. I am assuming that these two frames have been generated by the two .rxx files that were also created associated with this raw file. The black frame happened lightly every 30-45 seconds into the clip.
#14
That's strange because I have never had the camera stop recording in raw due to dropped frames. My only concern are those .Rxx files that are created when the duration is longer than a minute or so. It's awfully ironic that two of those files have been generated while at the same time there are two blank frames.. That's why it leads me to think that maybe it's MLViewer that can be causing this. However, as I mentioned above, I wonder if those frames can be cut out without affecting the timing of the clip..?

I will have to check my settings later to varify how it is set up.
#15
I have not. I will be sure to give them a shot. Does my problem sound like it is the transcode process that is causing these blank frames? Meaning, that these blank frames do not usually occur? Also, I would like to have a flat profile to work with in post. Do these other applications allow me to go to prores while applying a flat (slog) lut? Or will my workflow be dng where I'll have to take it into resolve to apply the black magic flat lut?

Thank you for your help!
#16
I am on mac.
#17
Hello Everyone,

I would like to start off by mentioning how fantastic of a job ML is. The results have far exceeded my original expectations! Every test shot i have performed have come out beautiful! However, i have notched a slight problem. When shooting for longer durations, anything over a minute, i notice that the continuous recording has some problems. When shooting for these long periods of times, i see that several .R00, .R01 etc files have also been made. But when shooting for shorter durations, these files are not made. I have noticed that when shooting this long, the video almost seems that it is broken up into chunks. (which i can understand because this is quite stressful on the CPU) but how ever many .RXX files are made, is the same number of blank frames that have been created in my clip. The clip starts off by playing smoothly until a minute goes by and there is a blank frame and same for the next 30 or so seconds/minute. so my question is, what is causing this? If i cut out the blank frame in my timeline will i run into timing issues for music videos? Meaning will the duration be thrown off causing the footage to slightly come off beat with the sound track? or is it just a simple blank frame caused by those .Rxx files when recording longer durations? However, this may not be too big of an issue because i can always cut to B-Roll or another take. Plenty of work arounds, but i am just curious why this is happening.

Camera: 5D mark iii
Card: Lexar 1066x 64GB
resolution: 1920x872 (continuos works fine at full HD. but i like this aspect ratio. it is not due to the cads write limitations)
MLRawViewer used to transcode into prores. Should i use a different transcode application? ( i like the ability to create prores files and add the Slog-2 LUT)

Thank you!