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Hi all, can somebody show me how to contribute to Magic Lantern development in general? I've got no coding knowledge (unless you count Matlab as one) but would like to support as much as possible.

For a start, I'm currently following this guide at https://www.magiclantern.fm/forum/index.php?topic=6783.0

Am i in the right direction? Or should be using cygwin/mingw approach https://www.magiclantern.fm/forum/index.php?topic=15894.0

Yea it would be cool to see 10 bit raw video on the 7d but is anyone still working on it? Which project is currently being focused on, maybe i can start there?

Many, many thanks!

Hi, welcome to the community and great choice to start ML with the 50D!

Personally, I wouldn't bother with autofocus in video mode just because with DSLRs, they simply don't have the capability to do smooth focus pull (assuming that's what you intended to do), unless you have Canon's dual pixel af (70D). Anyway, as far as I have tried, you can do autofocus, albeit only in one-shot af, meaning it can't do continuous af. The single af is handy to obtain focus of a scene before recording though it can be quite a bit slower compared to simply zooming in and focusing manually.

Perhaps you're wondering how to af in video, in that case use the 'AF-ON' button on the back. Have fun!

[edit] -additional replies
A good lens to start with is probably a wide lens so you have the freedom to use it in crop mode as well.

what app did you use to extract Cdng ?

Hey, I was using MLV Converter 1.9.2, found it from one of the 'get started guide' in the forum and since it was getting okay with 14 bit MLV files.

Anyway, tried MLV producer and you are such a life saviour!!!! THANK YOU SO SO MUCH.

However, there seems to be an issue with video shifting/ jerking at only the 1/3 section from the bottom part. A user with 50d reported something similar before in the 10/12 bit development forum.

video shifting example:
https://drive.google.com/open?id=1IenGoF4avcovV19xCDhtfQXLbW2zKf_1

Problem occurs regardless:
- 5x magnification mode or full frame mode
- any resolution
- with or without mlv_play module on (heard that 7d has 'earthquake' footage if video review is turned on?)
- 10 or 12 bit
- mlv_lite or mlv_rec

settings:
expo. override: on
global draw: histogram on
fps override: 23.976
preview: grayscale
use srm memory: on
small hacks: on

OHHH how a great discovery! During this writing, I realise that if camera is fitted on a tripod, meaning no camera movements, the shifting will not appear! So it only happens when the camera is moving!

Once again, thank you for all the help


[edit]
12bit comparison test on tripod vs when there is camera movements

https://drive.google.com/open?id=1hBE773ecvxEFFNlbFN8XYGnTjlwjZfKf

The feedback I got was that 10bit is working on the 50D. The test build is still on my downloads page.

Hi, about the 10/12 bit recording, is it this one: raw_video_10bit_12bit_LVState-wip.2018Feb04.50D109.zip ?

I've tried and the recording seems to go smoothly but when reviewing, the images are corrupted?

10bit sample:





recording details
mlv_lite, mlv-_play, mlv_rec on
expo. override: on
global draw: histogram on
fps override: 23.976
RAW video: 10bpp
preview: on
use srm memory: on
small hacks: on


Seemingly quite a few got successful with 10bit, so can one go higher than 1584*xxx (the max on 14bit) with the extra headroom on 10/12bit or is it the same work in progress to make 4k capable on these newly compatible 10/12bit cam?

Thanks!

but now i am only getting 640x480 30fps or OFF option

Hi, very new to ML here but hope I can help. Do you mean the h264 video? As in the one that says 'movie record' under the movie tab? Have you tried pressing the func. button?

but i don't have that option (RAW). am i missing something else i should be downloading? Is it right in front of me haha. Hopefully someone can point me in right direction.

To enable raw just go to the tab that has 4 squares and then enable 'mlv_lite', 'mlv_play', 'mlv_rec', restart then it'll be there, hope it helps!




Now, I've really tried to look up as much as I can but I don't think my issues are mentioned that much:

So, about 50D's raw in general. During raw recording, are you able to adjust exposure settings using camera dials, i.e. aperture, shutter, ISO at all? If so, could someone kindly let me know how to? I believe the option of 'gradual exposure' means it does but I just couldn't find a lot of information online about exposure during raw recording.

Also, does ML video function have continuous auto-exposure function? As in Av or Tv equivalent for video? It is mainly to move between scenes that are of different exposure in one take? Do I have to use lenses with physical aperture ring or fitted with ND filter?

So, the main problem I have is with exposure, if you guys can direct me to some good source, much is appreciated! Also, is 50D consider a good working raw video camera at this point? I mean am I suppose to expect other cameras running ML to be similar to 50D in terms of working condition?


Let me know if you need more info. Many, many thanks!




Some function i turned on during my raw video take:
Expo. Override     - to use 1/48?
ExpSim                - for histogram
Histogram            - for exposure checking
FPS override         - 23.976

Raw                     
- Res.: 1568x668; Ratio: 2.35x1;
- Preview options: ML Grayscale (correct me but 50Ds have issue with pink preview in other modes?)
- Use SRM Job Memory: ON
- Extra hacks: ON
- Buffer Fill: 4

Kill Canon Gui - Idle/Menus


*edit*
- removed question on ISO issue, just wanna focus on finding out if real time exposure change is possible.
- tried to use physical dials and ML's Arrow/SET shortcuts to adjust, none works...

Any help is much appreciated!!