Hello A1ex,
I have also briefly tested your build from today (Feb. 02) and here is some feedback and a few problems that I found:
1) The silent module works very well with uncompressed DNGs (31 MB files), also IS works with stabilized lenses and the Delayed trigger mode is great! For me, this is one of the most useful ML photo features, especially when combined with Dual ISO. Perfect for hand held low-light landscape photography. At 1/4-th to 1/13-th of a second I can now take several silent shots of a scene and most of the time, at least one of them comes out perfectly sharp! Thank you so much!
However, there is a problem with the losslessly compressed DNGs (18 MB files). After taking a picture, a message "RAW compression error: -2" or similar appears on the screen and the file does not get recorded, although it appears on the screen.
Another known problem with the silent module is that it does not allow proper aperture control on some more recent lenses. I tested with the EF 24/2.8 IS and the EF 35/2 IS and am able to close the aperture just by 2/3 of a stop, beyond F18.
2) The raw_tweak module does not work. When active, it affects the operation of all video modes. It does not even operate if activated just to view previously recorded 10/12-bit uncompressed files. Either it should be fixed in such manner that it only playbacks such files in the RAW-video mode and is completely unlinked from other functions or it should be removed all together. I had to deactivate it to continue with the tests. In this case, when an attempt is made to playback 10/12-bit uncompressed files, a black screen with a working frame counter is observed.
3) The RAW video (MLV) mode does not work properly even with the raw_tweak module deactivated. Recording a clip in the normal or Movie Crop Mode requires several times restarting the camera and battery pulls. Successfully recorded clips are fine though and have even sound recorded but this instability makes it impossible to work with this mode. For this reason, I think that the RAW video (MLV) mode is redundant now. The only thing that it does better than the MLV_lite (RAW video) module is the smooth frame counter. I think, it also provides a few more frames recorded at the UNcompressed bit depths before buffer gets full but this needs more extensive testing, so I am not sure about this.
4) I am not sure if the Crop mode (3x3 720p) works correctly. When activated, a white area (about 30% of the screen) appears at the bottom of the Life View area. It also gets recorded as a .MOV file in this way. When also RAW-video is activated together with this Crop mode, the white area at the bottom is also seen but when recording is started a "RAW detect error" message appears on the screen and nothing gets recorded. Maybe this Crop mode feature should be greyed out if 60 fps in the Canon Menu is not activated
EDIT 1: I am sorry, I forgot to activate 60 fps in the Canon Menu. The Crop mode (3x3 720p) works correctly now, without the white area at the bottom. Thanks, Danne!
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EDIT 2: The above tests were made with the following build found on the Experimental page:
magiclantern-crop_rec_4k.2018Feb02.100D101