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Messages - jmanord

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26
Raw Video Postprocessing / Re: Strange red squares in highlights
« on: March 01, 2016, 06:17:28 PM »
cmccullum, curios that your red dot artifacts went away at different viewer sizes. I opened up a shot containing the artifacts in Resolve, but changing the viewer had no effect on the artifacts. I rendered the shot, and verified the artifacts were present in the output video. I must be experiencing something different(?).

No highlight recovery:


Highlight recovery checked - red square/dot artifacts appear:


Highlight recovery checked with Color Temp. and Tint adjusted until the artifacts are gone:

27
Raw Video Postprocessing / Re: Strange red squares in highlights
« on: February 29, 2016, 06:13:18 PM »
I noticed the same thing in some of my shots (5dIII). You can get rid of them by adjusting the color temp and tint, but the result may be far from a correct color balance. I had hoped to do some simple trial and error testing by changing the white balance in the camera settings to see if it had any effect when using Resolve highlight recovery, but haven't had time.

Resolve seems to be able to pull more from highlights than Lightroom, although sometimes the results may be too artificial(?) looking.

28
I believe one solution is here:

http://www.magiclantern.fm/forum/index.php?topic=5710.100

If I remember correctly, the simplest solution is to use Process 2010 to avoid the flicker.

29
Awesome job! I really like your grade and composition.

30
Share Your Videos / WMWR Backpacking Trip
« on: February 04, 2016, 02:36:27 AM »
MLV -> MLVFS -> Davinci Resolve is such a smooth and efficient workflow, this was the fastest I have ever been able to edit together a video. I'm only an enthusiast, so my end result don't do the Magic Lantern team justice, but I can't say thank you enough to a1ex, dmilligan, g3gg0, et al for their hard work.

I need to back off the saturation slider, amongst ether things, but I'm excited by what I was able to put together in less than 3 hours.

Thank you for the feedback!


 

31
Hardware.

32
Share Your Videos / Re: 5d Mark III 14 bit 3.5K Raw Video
« on: January 15, 2016, 01:55:07 AM »
Very nice footage! Have you attempted any solutions for audio capture/sync in crop mode at these high resolutions?

33
Awesome! I may be misunderstanding the intended workflow, but is the attached mac binary used on an MLV file straight from the camera to compress it using the aforementioned LJ92? I received an immediate notification that the compression is complete and the resulting file is zero bytes. I extracted mlv_dump and tried running it from the command line, but received [ERROR] Missing file header. I tried using the normal mlv_dump.osx, the one included in the OP, and it seemed to work fine. Am I using your version on an incorrect target file? Thank you!

Full output:

MacDesktops-iMac:Test MLV Folder macdesktop$ ./mlv_dump -c -v -o test.MLV M30-0950.MLV

 MLV Dumper v1.0
-----------------

Mode of operation:
   - Input MLV file: 'M30-0950.MLV'
   - Verbose messages
   - Rewrite MLV
   - Compress frame data
   - Output into 'test.MLV'
File M30-0950.MLV opened
File M30-0950.M00 not existing.
File M30-0950.IDX opened (XREF)
XREF table contains 1484 entries
Processing...
[ERROR] Missing file header
Processed 0 video frames
[ERROR] Failed to rewrite header in .MLV file
Done

34
Really nice work. I liked the temporal contrast between equivalent(?) nature/human timespans. At first I thought a contrast in music might work as well, but then decided that would have been detrimental to the visual contrast.

My only subjective criticism, which is worth less than two cents, would be perhaps a slightly more subdued HDR effect. It isn't noticeable accept for a few shots where the common haloing artifact is present. I'm sure many people would disagree with me.

What was your workflow for making the video?

Looking forward to more!

35
I tried using the Lightroom workflow as well using the following method with Resolve:

1. Auto-Stack and Collapse imported cdng's ( makes browsing in Library much easier, and Shift+Click on the stack selects all the images for pasting the corrections )
2. Edited cdng in the Resolve timeline
3. Corrected the used cdngs in Lightroom
4. Exported to compressed 16 bit tifs ( This is probably overkill, but I thought it best to keep as much info as possible in the event I wanted to do any additional correction in Resolve )
5. Replaced the cdng clips in resolve with the Lightroom graded tifs.

I started writing a script to substitute the cdng clips for the tifs in an exported Resolve .xml file, but on loading the updated .xml, lost the grading on non-cdng sequences. This wouldn't be an issue if you are only using cdngs and correcting every clip in Lightroom. I'm sure there is a workaround, but I actually found I preferred the looks of the cdngs I was correcting in Resolve, and abandoned the Lightroom part of the workflow. I don't do any heavy corrections, but noticed most of the Lightroom tools have corollaries in Resolve. The noted missing tool (in the free version of Resolve) was the Detail Panel, Lens Corrections Panel, and I would get horrible results when attempting to use the Hue vs Lum corrections in resolve.   

36
Share Your Videos / Re: 2015 Home Video Montage - 5DIII MLV
« on: December 24, 2015, 03:01:33 PM »
Thank you. The majority of the shots are with 50mm primes ( Nikkor 50mm 1.4 AIS, Canon 50mm 1.8, Sigma 50mm Art ) , and the rest are from the Samyang 135mm, Canon 24-70 Mk I, and Canon 70-200 IS II. I rented the 70-200, and it's now at the top of my list for future purchase. I would like to rent it again and test its stability with only a monopod.

37
Share Your Videos / Re: 2015 Home Video Montage - 5DIII MLV
« on: December 23, 2015, 08:30:03 PM »
I only used Handbrake after DR12 to get the file size small enough to upload to YouTube. I wanted to see what the quality of DR12's h264 export looks like, but for some reason it kept consuming all of my system RAM when encoding to h264. I have 32 GB, and it actually consumed 64GB when OSX started to use swap space, but it crashed on every attempt. I'm planning to upload the Prores version from DR12 to YouTube when we leave the house for a few days; it's over 9 GB and will take close to 2 days with my bandwidth. I'm curious if there is any noticeable quality improvement with one less compression round.

Any suggestions for final output to YouTube?

38
Share Your Videos / 2015 Home Video Montage - 5DIII MLV
« on: December 23, 2015, 07:19:52 PM »
Just wanted to say thank you again to the Magic Lantern team. As a home video enthusiast, I have no skill at color grading/correcting video, so the flexibility of ML raw video, especially setting white balance, is the only way I can endure trying to put together something watchable. About 20% of the clips were shot on an a7s, which I sold to purchase the 5DIII earlier this year.

A few of the clips were adjusted in Lightroom, but the vast majority was done in Davinci Resolve 12. It's hard to believe that application is free. The only benefit to using Lightroom for me was the removal of chroma noise, but I quickly abandoned Lightroom for the much quicker workflow in Resolve. For any home video enthusiasts like myself using Resolve, make sure to use an external monitor when checking your footage (at least on a Mac). The GUI video player has colors that were slightly off after rendering the video. I exported the entire sequence to Prores 222 HQ and then ran it through Handbrake before uploading to YouTube.

I found I was having to push too many of the clips, even though I try to expose to the right. I'm going to enable the ETTR module and hopefully learn to use it to avoid that problem in the future.

Happy Holidays!


39
(5D3) I read through this thread, but did not see anything that would directly answer my question; apologies if I missed it somewhere. Is it possible to record MLV audio while in crop mode? When I record a video in crop mode with audio enabled, it stops when a frame is skipped as normal, but liveview does not return automatically and the top LCD status indicator flashes "busy" when trying to change settings. I have to remove the battery to return it to a functioning state, although turning the camera to off does close the mirror and appear to shut it down. An MLV video of approximately the correct size is created, but an indexing error is displayed when trying to play it back in the camera through the ML file manager.

40
Raw Video Postprocessing / Re: SlimRaw – CDNG compression tool
« on: August 01, 2015, 06:22:50 PM »
I decided to keep the MLV files as my backup copy, rather than backing up the dngs created from slimraw. I use lightroom for all my color correction, and use the catalog to store the edits rather than within the individual dng files, so I can always restore the dngs from the original MLV files without loosing my edits. I'm sure this is true with Davince Resolve as well.

41
Raw Video Postprocessing / Re: SlimRaw – CDNG compression tool
« on: July 31, 2015, 10:22:46 PM »
I just wanted to give a recommendation for slimraw. I purchased it yesterday to process 377.37 GB of MLV videos. After using MLVFS (another awesome program) to mount and read the MLVs, I was disappointed to find that slimraw was unable to correctly process subdirectories with MLVFS. After sending an email to slimraw detailing the problem, I received a quick response from Mihail and, this afternoon, received an email with an updated build which works perfectly with MLVFS. The files now take up 213.44 GB of space.

42
I have been trying to find ways to avoid the flicker as well. I haven't done extensive testing, but I'm wondering if the cause is more related to the same flicker that occurs in time lapse video from the aperture blades not closing, or staying closed, to the exact same diameter. I shot several videos today with a Rokinon lens and haven't noticed any flicker among the videos I've processed so far. Since the aperture blades are controlled manually, it should alleviate the problem. I am going to test with my autofocus lenses tomorrow by shooting them stopped down and wide open to see if this has any effect.

43
Raw Video / Re: Convert to lossy dng
« on: June 08, 2013, 10:47:41 PM »
cost  ;)

In case I'm not the only one that is limited the most by this keyword, here are some numbers I calculated (feel free to correct them).

Cost to store one hour of dng footage on a hard drive = US $13.18 (approximately)
Cost to store one hour of lossy dng footage on a hdd  = US $2.13 (approximately)

Here is a comparison of a dng vs a lossy dng with adjustments made. The comparison shows the difference between the two using them as layers with the "difference" blend mode selected.
https://www.dropbox.com/sh/099jm71eqlaw9vv/lYa3y4r8U8#f:diff.jpg


44
Raw Video / Convert to lossy dng
« on: June 08, 2013, 10:15:15 PM »
I am working on getting a camera, and apologize for not having personally tried this with any raw footage, but anyone wanting to store the raw files may want to consider using Adobe's new lossy dng format. I use it to store my "B" photos and it saves a considerable amount of space while retaining most of the flexibility of the raw file. Of course you will be locked into the Adobe ecosystem and it would add an additional conversion step. As usual, thanks to the awesome ML contributors!

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