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Hopefully someone can keep me up to speed. I've been away for a year now with my ML. I'd like to update my ML again. Is it still the same process, copy the ML firmware into our sd card, put it on our camera, boot it and install new ML firmware?

Also, which compact flash card would you recommend if I wanted to do raw recording?

I forgot, where can we download the latest stable firmware?

Thanks!

Go to the first page of this thread and read the first post.

Wow. That was very quick.
I tried developed a 1568X656 @ 23.976 fps, in a total of 437 frames (18s). And importing to After Effects directly, with no other processing except changing the WB. It took my machine about 90s to process it. I have a GTX 660 with CUDA driver installed on a Mac.
Is it because my AE is too old? I'm using CS6. And what exactly do you mean "ACR is not utilized"?

Try the latest nightly with SRM memory. You should get a lot more frames. Even my slowest card (Transcend 600x) can record continuous 1568x882 and about 17 seconds at full HD (crop).

Use MLV_REC. Make sure to set picture size to raw and no jpeg (-) in the Canon menu. Switch off global draw in the mlv module and leave 'Fix Black Level' OFF (not needed). Disable the functions you don't need (i.e. don't enable vectorscope etc if you don't need it).

@Kolen - 80 mins?  How big is your card?

In the past people suggests choosing smallest JPEG but not RAW in the Canon menu. Does the newest nightly change it?

For the newest nightly (magiclantern-Nightly.2014Jul17.50D109) it seems in crop mode it gives me occasional pink frames but I am checking if it is the card issue or newest nightly issue.

I tried recording at the lowest possible settings, so it stress on the Live View and the stability of the software, and overheat but not including a huge write speed, in that case I got 80 min.
Yesterday night I tried recording at 1982X992 which is at about 80MB/s and the card heated up the sensor much quicker. But I can still record RAW video untill card full on 128GB 1050X Komputerbay, which just over 24 minutes. By the end of the recording though, there's a warning saying something like "FPS warning, overheat", etc. (wait, now I start worrying if I overheated the sensor too much so that it gives me pink frame even when it's cooled down?)

Edit: I just finished recording a video of 1568X656, full sensor 2.39:1, to fill the whole card of 128GB Komputerbay 1050X. The total duration is just below 50 min (by pressing ISO button to reset timer). And the sensor has overheat warning by the end of it.

Edit: I tried it on an older build and it doesn't seem to have the pink frame. However I only recorded a few minutes.
I guess it is the newest nightly that cause the issue. How do I report the bug (after I have more testing)?
Thanks.

Edit: I nailed down the builds that cause the pink frame problem:
Nightly.2014Jul17.50D109 and magiclantern-Nightly.2014Jul16.50D109 2nd build.
Using earlier build doesn't seem to have the same problem. e.g. magiclantern-Nightly.2014Jul16.50D109 1st build, magiclantern-Nightly.2014Jul15.50D109
The condition is, I use RAW_REC, Expo. Override, Global Draw off, FPS 23.976 exact, RAW Video at 1984X992 in crop mode. Shutter 179 degree, ISO 800, lens with no electronic contact, etc.
And the pink frame will show up quite frequently, and can be seen even in live view.

My 50D was delivered today. I had much fun getting my 64GB 1050x Komputerbay card running (my antivir doesn't let me download EOScard tool) - but OK it's running now.
My first questions:

-I'm in RAW movie mode, 1568x882. sometimes it says:
55.3mbs at 24.001p. Expect around 0 frames at 46.4mb/s
and sometimes it says:
55.3mb/s at 24.001p. continous recording ok.

So why do I get different results every time I do into the menu? And is my card really to slow? I mean it's the 1050x 64GB, that should be fast...

-other question: I think I read somewhere that you can record short raw videos in FULL HD resolution, it just stops after few seconds. But everytime I wanna change to somewhere over 1568x882, it says for example:
1920 is not possible in current video mode (max 1568).
So how can I record short raw video files with a higher resolution?

-And, by the way, what is better for the EOS 50D - RAW or MLV ?

Hope somebody can help me...thanks! 

It might be because the card speed varies quite a lot. So it used the last write speed to help you to determine if you can record at a certain setting continuously or not. But since the speed varies, from time to time you might get a different suggestion from the manual.
Also try setting the fps to exact. It would be better if you use multicam (so that they share the same 23.976).

I don't know if it is just me or not (I am a newbie and bought a 50D a month earlier than you), but the MLV_REC seems more unstable than the RAW_REC for me at least. For MLV_REC the 50D crashed at about 5:40 of recording but for the RAW_REC I can get up to 80 min. (and ends because of overheat, not crashing).

... All of the DNGs are inside the wrapped MLV or RAW file... It will take a hex editor to replace the missing information in order to extract the DNG images. Once completing the hex editor footer replacement you'll be ready to process the original MLV or RAW file on your regular DNG extractor application.

Take a look back at page 3 of the 50D topic... There are a couple of entries that I wrote explaining the process of fixing damaged footers.

Thanks! That's helpful. I didn't know it was so close (I clicked the first page and next pages to skim through but didn't notice it).
I wonder if such information should be put in the wiki for better access?

Hope that you don't mind me repeating the question: does anyone know how to extract DNG from a corrupted ML RAW file (due to, e.g., crash during record, battery drained, card full, etc.)

Once I tried pressing the ISO button from time to time and the 50D can record raw video until overheat, which is about 82 min (in a cool environment, with a single fully charged Canon battery). I believe it is because of the power saving in the Canon menu. The longest duration we are allowed to set is 30min. So as I press ISO button during RAW video recording it would reset the counter.

By the way, I found that showing live histogram would make the 50D crash after about 6 min. But if I use global draw and activate the zebra and focus peaking, it can safely allow us to take video up to card full.

I am testing this since I wanted to use RAW video in an upcoming wedding proposal job. I figured I can get full sensor, 2.39:1 output (1568X656) for about 25 min. from a 64GB card. So I am wondering if I can get continous 50 min. from a 128GB card and from my testing it seems ok. (Can go pass 30min, and overheat and battery life doesn't matter at least for the first 80min.)
Probably not too many people would be interested in RAW video "marathon" but if as least it is possible for now.

Thanks all!

I was testing the idea last night but sadly it crashes and then I tried it again and it is overheated. So I decided to sleep first and test it again today.
But good to know someone else has done it already and it works!

One question:
Taking longer video make it more likely to have crash somewhere in between. I have occasionally crashed some clip. And I am not able to extract the DNG from it. I think the problem is the end of file. I tried to merge all the spanned files by CAT in terminal but it still doesn't work. No converters will recognize it (and I tried all listed in Magic Lantern Wiki, RAW Video page).
I find a site: http://www.conorcunningham.net/blog/2014/4/10/magic-lantern-missing-end-of-file
But its solution is rather technical.
Have anyone experience crashed videos (crashes in the middle of recording) and successfully extract them?
Thanks.

Edit:
here's another question: are there anyway to put the 30 min timer on screen so that we can quickly test which operations would reset the timer? I am thinking may be even if we press the ISO button (but not changing it) would do it too.
I just recorded a RAW Video longer than 30 min (up to 80 min and more and the sensor starts overheated and I stopped it). Since I don't know which button would do it, I pressed the Magic Lantern Menu button (trash), the ISO, and also the White Balance. From my testing, pressing the Canon Menu button or the playback button would stop the recording.
Edit:
I find that pressing ISO button alone can make the video surpass 30 min. I guess actually the 30 min. limit came from the sleep mode, since the longest time we can set for sleep is 30 min. As long as I press something it won't sleep.

Bug Report:
I find that consistently in 10x mode it will crashes very soon (~dozens of seconds). I am using the latest nightly build from July 2nd.

Hi, all. I recently bought a 50D and try to record RAW video. Occasionally the camera halted during the recording. While most of the files are there, they are corrupted. I guess it is because it doesn't have a proper ending. I guess the issue is similar to what is posted here. However joining the spanned files from either the terminal or the RAWanizer doesn't work. The resulting file cannot be converted to cDNG by RAW2cDNG, RAWMagic, RAW2DNG, etc. I also tried BATCHelor and it doesn't work.
I think in principle if I know the original resolution, the data is there and should be able to get them (except for the last few frames)?
I googled and find this post, and also another one here: http://www.conorcunningham.net/blog/2014/4/10/magic-lantern-missing-end-of-file
That blog is quite technical. Are there any easier way to do it?
Thanks!

Yes. In reality it is a 4gb limit, that using h264 is reached in 12mins. Raw does not have this limitation but there is a 30min timeout hardcoded into the canera that shuts down the lcd screen and so it stops raw recording. No ML overrideable. However, at any decent resolution, recording raw will fill up any nowadays most biggest cf cards far before reaching the 30mins limit...

I almost forgot about what you've said. I just tried to record a RAW Video at low resolution and it stops at 29:48. So there's indeed a 30min timeout. Do you know if the 30 min count down started from the moment I record movie or the moment I started liveview? Are there anyway I can do (e.g. go into the menu while recording) to fool the camera to reset the 30 min timeout during movie recording?
Thanks.

@kolen: with the latest tragic build it is technically possible to fullfill any card size with continuous raw video. On the other hand, so much time you indicated brings so much heat buildup  that record will stop. Also, battery  cannot last so much time in raw mode, even with a battery grip. For these reasons, no one so far tried to see if there would be audio sync problems  for so much recording time.

Since I bought one I tried it today about battery life and found out one single Canon battery will gives me about 71 minutes of recording time. The settings is in a Full sensor mode with 2.39:1 ratio at 23.976 fps exact.
Since I only have 64GB Lexar 1066x card the card will be full when 24:40 min of videos has taken. I restarted it each time until battery dies.
What I am planning to do is to get a 128GB Komputerbay card and see if I can get continuous 49:20 min of videos. I have seen the camera becomes too hot and have a warning signal. But only after prolonged usage. And let's see the upper limit of continuous video it can do.

I override it to 23.976 and exact. Is there some limitation on fps override in crop mode? I googled and find people saying in crop mode I shouldn't be using exact. I tried the low jello and 180d option, it gives me 44s of 1920X1080 video in crop mode (Lexar 64GB, 1066X). I did it again and find out it stops when it starts the 2nd file span. So the first file is 4GB and the next 3xxMB and stops. I think may be it's just the card is too slow. Is it?
Many thanks!

Edit: I followed this blog: http://altcinema.wordpress.com/2014/05/10/magic-lantern-setup-settings-and-shooting-raw-hd-on-the-50d-2/ , which in itself is following by a suggestion in MagicLantern, to format the card in a specific way. I can now get about 2 MB/s more. But sustainable 1920X1080 is still not possible. After the first spanned files it stops at 65s (in using the low jello option). But I can get sustainable video in crop at 1920 width with 1.85:1 aspect ratio with 23.976fps and low jello. This allows me to record until card full.

I tried in full sensor mode for continuous record and RAW_REC can record until card full, which is about 24:40 for 64GB at 1568X656
MLV_REC however consistently gives me problem and often crash. When it can go continuous, It usually crash at 5:40.

Hey, my bad. I was not writing clearly enough.

I am able to take 1920X1080 movie, but it can only sustain for at most about 20s in different ways I tried. Both RAW_REC and MLV_REC, and also all the buffer methods.
I am thinking if the card is too slow. Since I heard reports saying 1050x actually is faster than 1066x as far as Canon 5D Mark III is concerned. And I think I heard people can get 1920X1080 from 1000x, I might be wrong though.

I can't get 1920X1080 from Lexar 1066x 64GB card. Am I normal? I heard people saying the 1000x and 1050x are faster than 1066x. Is it correct?
Thanks.

Hi. I just received my 50D and tried it. I have a few questions:
I use the RAW_REC and test the continuous record and it crash at 12GB when it creates the 4th spanned file. The problem is, I cannot convert the DNG from it using both RAW2DNG and RAWMagic. How to due with corrupted files?
Should I use RAW_REC or MLV_REC?
Thanks!

Yes. In reality it is a 4gb limit, that using h264 is reached in 12mins. Raw does not have this limitation but there is a 30min timeout hardcoded into the canera that shuts down the lcd screen and so it stops raw recording. No ML overrideable. However, at any decent resolution, recording raw will fill up any nowadays most biggest cf cards far before reaching the 30mins limit...

Thanks for the information. I don't know the 30min timeout hard coded before.
I was thinking 1584x662 recorded in 128GB card should gives me 52min. But I have to think again.
Actually 1584X891 will still give me 38.6min.
However before I am more "informed" I purchased one last Thursday and should be arriving today. I am most interested in how long it can continuously record (I have purchased a grip and plan to put two batteries there for maximum capacity). If all works may be I will use it in my next wedding shot (it's a proposal shot and they want to include the whole thing. I also don't know how long would they take). And of course with a backup non raw video camera.

For the 12 min limit, do you refer to h.264 video?

So let say if I get a fast enough 128GB CF card the 50D can shot RAW video continuously until card full? (like 45-60min?)
Does anyone try something like this before, shooting long RAW video on 50D, and can obtain audio sync in post? (I understand that 50D doesn't have audio, but in post processing if I sync it at the beginning, would it continue to be sync by the end? In the past I have sync issues with my GH1 and an external recorder because the GH1 do not have a fps exactly 23.976 but slightly slower.)
And are there overheat problem that will stop the video unexpectedly?
Thanks!

Thanks.
For the PDAF pixel problem, I mean those pixel will show up in the RAW video like a hot pixel and requires clean up.

Hi. Sorry I couldn't confirm it by googling it: Does RAW video on 50D has 4GB limit? Will it span automatically? What's the largest card that it support?
Thanks.

Hi, all. Some how I can't confirm it by googling it: does EOS-M record RAW video in 3x crop mode only? And it has PDAF pixel problem?
Thanks all.