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The latest builds works great for me, 5D3.123 with external monitor, using MLV - before I had skipped frames from time to time at 1080p25 with Komputerbay 64GB, now I filled three cards without any skipped frames. The image in the EVF is much more usable with mirroring on. Just wished there was something to give me confidence that I am acutally recording when I am only looking through the EVF.

MLV works perfectly for me, using nightly build Febr. 15th on 5Dm3. No card spanning, good old K-Bay 64GB 1000x, recording 1080p25. Not a single corrupted frame since then (had a lot with the first builds from december). I am even using HDMI, which is said to have bad effects on write speed. One in ten recordings stops because of slow speed, but I can live with that. Camera hangs if I switch of HDMI before waiting for camera shutdown - I can live with that too. Sound is a bless. MetaData (e.g. for automatic distortion correction) is a bless. MLRawViewer is a great software. Conversion with the shell script works without problems.

You should set ISO to 100 on the 5D3 - you lose a lot of dynamic range by increasing the ISO no matter by what increments.

I have been using ML Raw since it came out. Even took the camera with me for the summer holidays:

(+) the sharpness is breathtaking
(+) color is breathtaking
(+) your sky comes to life (instead of burning away)
(+) dark scenes retain detail
(+) ever tried noise reduction on h264 footage? Welcome banding. In contrast, raw is very noise-reduction-friendly.
(+) focusing in h264 with sharpness=0 is hard. much easier using sharpness=7 (no effect on the image)+focus assist
(+) once you hit a "stable" nightly build, reliability is very good (keeping in mind the pitfalls)

(-) reliability is (naturally) not perfect - you may loose one or two "key" scenes
(-) you have to invest in storage, again and again
(-) you will need a laptop and harddrives to take with you, running somewhere all the time in the background (offloading and converting)
(-) your family will hate you for spending time in front of a laptop during the holidays
(-) you need lots of batteries and at least three 64gb cards (you can't always offload when you want to)
(-) if you try to use an EVF to see the faces of your kids instead of their hair, then ML is not optimized for that

In addition, dualiso and MLV+sound have been great leaps forward. Thank you ML-Team and everyone providing helpful answers on this forum!

Hey everyone,
Thanks for the advice ill test that tomorrow.  On another test last night I noticed that the connection of my smallhd ac7 via hdmi was causing regular issues, both in RAW rec and MLV, it certainly seemed to be slowing things down and locking things up.  It's more stable in RAW only creating slight issues but totally unusable in MLV, every time I hit record the screen would lock up and I'd have to turn the cam on and off to reset.

I am using an EVF and it locks up from time to time too or gives me corrupt frames. Too bad, as my shots are so much more stable with this extra-point of contact. I wished the devs could invest some love into this, but I fear with an external monitor, we are a small minority.

Most of my shots turn out very usable. You have to make sure to switch off the camera first and wait for five seconds before switching off the EVF.

[sudo mv ./mlv_dump.osx /usr/bin/mlv_dump]

Updated batchscript command for mac-users

Ok.
I modified a command script from a member here,  jerrykil, and put in your script-instruction dubzeebass and g3gg0. So if doubleclicking the commandscript from within the folder with the mlv,s it starts the conversion without having to go through terminal.

Instruction would be:

1. Download mlv_dump.osx http://upload.g3gg0.de/pub_files/c02de9a0b17fc909b5494ddbd0fd249e/mlv_rec.zip
2. Open a Terminal
3. Go to the folder where you downloaded mlv_dump.osx (extract if needed) and type: sudo mv ./mlv_dump.osx /usr/bin/mlv_dump
4. Type sudo chmod +x /usr/bin/mlv_dump
5. Run the recursive.command file below from the same folder as the .mlv files. Need admin rights. Go to command script through terminal and write chmod +rxw recursive.command press enter
6. run the recursive.command by doubleclicking

You can doubleclick the recursive.command script a couple of times to have them work in parallell.

commandscript https://drive.google.com/file/d/0B4tCJMlOYfird0U5dTNnR0twNE0/edit?usp=sharing

Thanks
/D

*updated recursive.command 29 dec (g3gg0)

Thanks Danne for your script.

I think it needs one modification in order to handle split mlv-files - the move command should be:

mv ./"$BASE".M* ./$BASE

This way not only the first .MLV gets moved but also .M00 and .M01 etc.

Thanks g3gg0, this is invaluable. And thank you also for advancing the whole file format stuff in the first place.

Haven't tried the new build, but already the first build worked great on 5Dm3. Sadly I am still plagued by random crashes and not shutting down until pulling the battery when using an external monitor. But this also happens with the traditional raw_rec.mo

Great - thanks for sharing!

Very cinematic images - can't wait to see the first video footage. A1ex you are a genius - probably you will soon be abducted by some spy agency to work for their super secret decoding missions...