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Messages - Walter Schulz

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Is the doctor in?
I'm traveling with 100D (planning to come back end of March 2020) and just a few hours ago liveview went nuts.
Build in use at the time was crop_rec_4k_2018.Jul22.100D101 (by jenkins@nightly)

Changened lenses after some video shots (mlv_rec + mlv_snd), went to liveview for some stills and a bright screen was shown with ML status bars top and bottom. Brightness didn't change with aperture/exposure time/ISO. Sometimes power off won't work.
Tried resetting to ML defaults, restoring Canon settings, pressing SET at startup, running cam without card, with different builds, with different cams.
I started cam in M mode, Tv, Av and tried battery (only on with me) and external power supply.

- Most of the time screen is bright when starting LV with ML status bars. Pressing LV button switches off LV, pressing again brings back bright screen with status bars.
- With bright screen on I press Play button and last pic shows up. Pressing LV button again, screen shows last pic (normal brightness) with ML status bars. Pressing LV button again -> Canon menu as it should be. Pressing LV again: Black screen with ML status bars.

Sometimes I manage to softbrick the cam. Haven't found out why and when yet.
Looks like non-LV pics are working fine.

@alex: UTC-5 here (if it matters)

EDIT: Movie mode LV is laggy (looks like fps override) and freezes at times.
EDITEDIT: Got LV back in photo mode. Sluggish. Looks like some serious fps override. Useable, still.
3rdEDIT: in Movie tab FPS override was turned off but numbers to the right were in the area! Canon setting: PAL 1080@25 ... Changed to NTSC and changed 1080p modes. Numbers are back to normal.
Funny: Let cam rest in Canon menu while I wrote, switched back to LV and everything looks ok now. No lag anymore. Do I have to understand what was going on?

Camera-specific discussion / Re: Canon EOS M
« on: November 21, 2019, 08:40:57 PM »
there is a horizontal line in the center of the video

And you want two?

Help us to help you. Ask your questions in a way giving enough information for other people (without mind reading capabilities)  to understand your problem, giving some sample of what your actual problem is, what build and settings you are using and if the problem happens with *and* without ML (if applicable), ....

Camera-specific discussion / Re: Canon EOS M
« on: November 21, 2019, 08:31:46 PM »
classic MLV recording works fine but only up to liveview resolution like all other cameras

MLV (as long I can think of) was always able to use crop modes with resolutions beyond liveview.

EOS M nightly (without some serious work done by danne and dfort) had and has a serious video limit: It does mv720 and is the only ML supported cam doing so. All other cams will do mv1080. Mv720 has a major issue because it does 5x3 sampling instead of 3x3 in mv1080. Short: RAW/MLV in native liveview resolution for all other cams samples only every third line (bad enough) but EOS M does skip 4 line instead of 2. Therefore EOS M video IQ in uncropped mode was offen hampered by heavy aliasing (moire).

Camera-specific discussion / Re: Canon EOS M
« on: November 21, 2019, 05:51:39 PM »
See reply 3656, 3657.

Camera-specific discussion / Re: Canon 70D
« on: November 21, 2019, 02:54:57 PM »
Firmware update 1.1.3.
If you install it I think you will have to ask Canon Service if you want to rollback to older versions. Fixes vulnerabilities as seen in PTP remote code execution.

Camera-specific discussion / Re: Canon 6D
« on: November 21, 2019, 02:08:43 PM »
US hasn't been updated but UK offers it now:
Because it fixes PTP and firmware update vulnerabilities I predict you will be unable to downgrade back to 1.1.6 without Canon Service.
70D got an update, too:

I think you missed his point.
@skipveen: masc integrated raw2mlv into MLV App to make use of its functions for mere photographers, too!
And it was done just a few days ago.

Use a pic host service and link it here
Code: [Select]
[IMG]https://hoster of your choice/mypic1.png[/IMG]

Raw Video Postprocessing / Re: raw2mlv processing
« on: November 13, 2019, 05:34:31 PM »
BIOS/UEFI should be unrelated!
My recommendation: Check virus/internet protection software first and make sure it is not blocking. Run exe from command line and check for log entries (for
virus/internet protection and Windows event logs, too).
If problem persists I would recommend to enter a Teamviewer session with Process Monitor (Sysinternals/Microsoft) logging raw2mlv activities.

Camera-specific discussion / Re: Canon 750D
« on: November 12, 2019, 11:54:22 PM »
Ingenuous question: what may happen if I try to install the release for 700D on my 750D?  :D

Your doorbell will ring and you'll get full refund for all STEM classes you ever took. Without interest.

Raw Video Postprocessing / Re: raw2mlv processing
« on: November 12, 2019, 06:16:33 PM »
I will try. Where do I find cr2hdr again?

Not sure ...

Also where was the dcraw Windows porter, was it on this forum?

I found his name and link as first item in Dave Coffin's dcraw page FAQ section:
Frequently Asked Questions

I don't have a C compiler. Could you send me an executable?
    Sergio Namias has built some current Windows EXE files here. Dcraw has also been ported to Amiga, MorphOS, BeOS, OS/2, and RISC OS.
Link is dead. This is latest Wayback Maschine backup:

Raw Video Postprocessing / Re: raw2mlv processing
« on: November 12, 2019, 05:17:24 PM »

Offtopic: Can you give cr2hdr binaries the same medicine? Just asking ...
And dcraw's Windows porter never made it to 9.28 and seems to be offline ...

Raw Video Postprocessing / Re: raw2mlv processing
« on: November 12, 2019, 05:10:34 PM »
According to dcraw's Windows porter it just needed to be compiled with Visual Studio for wildcard support.

General Help Q&A / Re: Help Files not found
« on: November 12, 2019, 05:01:15 PM »
You did nothing wrong. This error message is a long time "feature" within ML. As long as this persists you may have a look at my signature.

How does one get mesc's CA addon to work in linux?

My weapon of choice as a begginer in filmaking and the Magic Lantern ecosystem is the 1100d, and, as you can imagine, getting some usable raw video out of this camera has been a (delightful) challenge by itself.

I've been searching this thread for other matters of the raw workflow, but got hung up on the magical CA slidders. How can a linux novice get them in mlv app?

Thank you for any clarifications.

Someone able to help this guy? His/her post got lost (somehow) during confirmation period.

Shoot preparation / Re: Infinite focus in low light shooting
« on: November 12, 2019, 04:50:16 PM »
If you are using a lens reporting focus distance you get a screen like this

with all informations you need at the bottom: Distance and DOF. Ignore "This feature only works in LiveView". This refers to highlighted menu item. Lookup "Hyperfocal Distance" if needed.
If your lens does not support this:
Measure or estimate distance and get yourself an oldfashioned focus distance card or an app for DOF calculation.

Raw Video / Re: The RAW videos I shot are invisble on my memory card
« on: November 12, 2019, 04:27:32 PM »
You can't transfer MLV files via USB. Canon doesn't offer that option. Period.
- Complicated way around: Use a LUA_fix build and rename MLV (M00, M01, ..) to MOV (or another file supported by Canon) and transfer them via USB.
- Just use a decent cardreader.

Second method's pros:
- It's faster. Depending on card type you are not limited to below 20 MByte/s transfer rate but somewhere > 100 MByte/s.
- As long as you are not using wall plugged power supplies: It doesn't drain your battery during transfer.
Cons: You need an additional device.

Some decent cardreaders were reviewed here:
I can recommend Kingston FCR-HS4.

Raw Video Postprocessing / Re: raw2mlv processing
« on: November 11, 2019, 07:14:05 PM »
You can. Install an Windows 10 evaluation version inside a virtual machine.

General Development Discussion / Re: The MLV format
« on: November 10, 2019, 05:32:42 PM »
Hmh ... found this. Any issue with MLV?
Big bummer. The RED patent also poses a threat to MagicLantern as MLV is compressed RAW video.

Camera-specific discussion / Re: Canon EOS M
« on: November 07, 2019, 02:21:37 PM »
Thanks for another useful link, Luther!
I leave it to Ilia to decide if it is worth the effort and/or the direction he wants to take. (IANAP)

Remove battery, remove card.
Insert battery but *do not* insert card.
Startup cam and report status.
Remove battery.

Nightly Builds / Re: Nightly Builds - try the very latest stuff here
« on: November 07, 2019, 12:56:05 AM »
Already answered via Reddit.

Camera-specific discussion / Re: Canon EOS M
« on: November 06, 2019, 06:26:12 PM »
Requires an MLV codec written for Windows.
Same problem with CR3 in Windows. Canon doesn't provide any either.

Feature Requests / Re: Record Delay (more than 10 seconds!)
« on: November 05, 2019, 07:25:03 PM »
Don't be frightened to do it yourself (I bet you will be anyway)!

There are 2 options:
1) Setup a development environment and edit source mlv_rec.c according to your needs. Then build your own ML. You will find the instructions and scripts written by dfort and others easy to follow.
Code: [Select]
case 3:
            start_delay = 10; break;
            start_delay= 0; break;
Code: [Select]
case 3:
            start_delay = 10; break;
case 4:
            start_delay = 37; break
            start_delay= 0; break;
37 is just an example, do as you like.

2. Load, restart and start "Movie Delayed Start" from Scripts tab.
Then switch to Movie tab where you will find an entry "Delayed start" with "Delay Amount" from 0s to 10 min. Don't forget to check "Stop after"!

PS: Next time asking for a feature you should first check if there is a script for it. If there is you have to explain why it doesn't fit your needs.
Don't forget to mention the build you want to be changed.
Don't forget to mention the tab, module (if any), menu item, submenu item  you want to have changed. There is a ton of menu items around and sometimes they sound pretty similiar and we may have no idea what you are talking about.

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