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for 5d3, in 5x zoom 720p 60p mode, the maximal resolution is 3500x1320. this was not practical without the compression factor, but now it can record much longer and 5d3's 3.5k mode seems very applicable to a lot of creative scenarios.

I just did a quick test on my 650d. comparing to 5d3, 650d has a sensor almost the same as super 35mm film camera, which is why cinematographers like 7d more than 5d, to adapter cinema lenses.

in full sensor 720p 60p mode,
1. I can get 24p 1792 with an aspect ratio of 16:9 for 27 seconds. the whole sensor is used for raw video so that low light is good.
2. I can get 24p 1792 with an aspect ratio of 2.40:1 continuously. for 10% scaling up, this is full hd cinema footage, which was Hollywood's standard 10 years ago. very useful to me.
3. I can get 24p 1600 with an aspect ratio of 3:2 continuously. by applying an anamorphic lens, this is psudo continuous 3k with an aspect ratio of 3:1.

in 5x zoom mode, the compression does not apply.

thanks, frank7d. so it is better than Cinemark cropped mode but not truly 4k.

follow up:

just did a quick test with my 5d3:
I. in full sensor mode,
1. 720p 60p slow mode, i choose 24p 1920x1280 3:2, ml does not allow me to do that, it automatically changes to 1920x670, reminding to add a decompression ratio of 1.67 in post. i did a short test, the 1080 lines visual information is indeeded compressed into 670 lines, so it is not simple cropped, but like a vertical anamorphic effect.
2. if i add a 2x anamorphic lens or adapter (waiting to set up mine yet), 1920x670 will finally be 3840x1280 3:1 uhd/4k (horizontal anamorphic ratio of 2 and vertical anamorphic ratio of 1.67).
3. by calculation, 1920x670=1.4 MB/s, so 60 fps is theoratically possible with a card writing speed of 84 MB/s. on my machine this only works for a short 3 seconds although i saw the writing speed is about 80 MB/s. i use a sandisk extreme pro 128gb 160 MB/s CF card and a  sandisk 80MB/s SDHC 32 GB card. I installed magic lantern system files on the sd card. maybe the sd card is not fast enough for ml system files? no clue.
4. interestingly, theoratically, 1920x670 24p should be possible with my 650d within the writing limit of 40 MB/s. this is significantly, a rebel camera can do super35 full sensor 3840x1280 3:1 widescreen 24 uncompressed raw!

II. in 5x zoom crop mode,
1. calculate the 4k 2k 1080p mode back to compressed resolution:
wide   on camera res.       high         on camera res.
4096   2048      2160   1293.4131736527
3840   1920      2160   1293.4131736527
3996   1998      2160   1293.4131736527
2048   1024      1080   646.7065868263
1920   960      1080   646.7065868263
2. choose the closest resolution in the ml menu, record 24 p raw. i can do 2048x1320 aspect ratio 1.55:1.

suggestion to Alex:
Alex, could you please add these calculated resolution into ml resolution pull down menu? So that we can get exact 4k and can record longer.

question to everyone:
is this anamorphic codec just number playing or real visual information compression?


i

http://musitelli.com/site/files/Anamorphic_De-squeeze_White_Paper.pdf

i see people always apply a decompression factor for slow mo raw video in 720 60p mode, from 1920x500 to 1920x810. I don't know the reasoning behind this. If this is appliable to 24p in 720 60p mode, then vertical lines can reach wow 2200 (1320x1.6), then 5k (2500x1320) raw can be recorded for maybe 9 seconds in crop mode, enough for most creative works. It is simple and easy, record raw mlv in 720 60p mode at 2500x1320 24p with an anamorphic 2x lens. then apply the decompression factors vertically and horizontally in postprocessing.
this does not need to be in crop mode, in full sensor mode 1920x1290 can be recorded and expanded to 3840x2000 continuously.
ml really rocks. wow.

1. x5 zoom
2. 1920x1320 24 p raw
3. anamorphic 2x to compress 2x info, now 3840x1320
it is 4k raw now with 3:1 aspect ratio.

I dont know what you mean.

I mean can ml do raw recording 18 mp at 1 fps without using the mechanical shutter? Thanks for all of your help and sharing. Great community.

18 mb full reslution? That is ground breaking.

That's cool, Spider.

When I saw the first few frames, I thought, "what a mess of hot pixels!", but on watching it play, I love the way the clouds move to reveal the starscape.

I really enjoy timelapse film making, and Magic Lantern makes beautiful, raw-quality, full-resolution films possible on even the most basic cameras - without racking up the wear and tear of thousands of mechanical shutter cycles.

Ok, just some additional info for those looking to shoot RAW on their 650D"s

With global draw and all other features turned off, using sandisk extreme 45mb/s formatted exFAT 128kb allocated unit size I'm getting continuous video using 1152x648 @ 23.976 with write speed 29mb/s (I stopped it at 4 mins with 7gb file size and it was still going strong).

Also, experienced continuous video using 1280x720 @ 23 fps with write speed of 35mb/s and no signs of slowing down, but this seemed to be at its limit (not sure if card write speed limit or camera SD write speed limit).

Waiting for sandisk extreme pro 95mb/s cards to arrive and will post results of that soon, which should tell the final story regarding write speed limit for this camera model.

Thanks again to all Dev Team members and forum posters! Without which none of this would be possible :-)

You mean 18 mb full resolution timelapse without mechanic shutter wearing. Please confirm, because this is huge.

how many frames can be done on t4i, with 1728 wide and aspect ratio of 2.39? the calculation says 41 mb/s. thanks.

1) I known on 5D3 it is possible to do raw video at 1920x504 48 p, stretched in post to 1920x808 48 p. But I don't care about slow mo. I want HDR raw video.

2) Now is it possible to do raw video 48 p in HDR mode, like the guy did on 5d2 at 30p
http://www.magiclantern.fm/forum/index.php?topic=6075.0
http://vimeo.com/67501777
"Shoot RAW at 30fps, HDR video on, set ISO to taste. Extract DNGs, split in AE using time stretch by 50% (offset by a frame for opposite exposure) precompose and slow down to 50% using twixtor, export as TIFF sequence. Batch process each frame in HDR processor of choice, I prefer SNS HDR. adding a lot of patience you will obtain a merged HDR TIFF sequence."

3) Even further, can the new Dual ISO module work at the same time when raw 48 p in HDR mode is recording?

How much dynamic range with this combination achieve if possible?

ML rocks!

I read somewhere that EDMA can write 500 Mbps

http://www.eoshd.com/content/10351/new-5d-raw-developments-plus-my-low-li ght-comparison-with-blackmagic-cinema-camera
"
  Anamorphic 3:2 @ 1920×1280 /24p = 98.3MB/s
  30p @ 1080 = 103.6MB/s
  48p HFR @ 1928 x 672 = 103.4MB/s
  60p @ 1928 x 672 = 129.8MB/s
  Blackmagic style 2.5K raw @ 2560 x 1320 /24p = 135.3MB/s
  Full 3.5k Super 35 crop mode @ 3592 x 1320 / 24p = 189.9MB/s
"
According to the EOSHD article, assuming CF card writing speed is fast enough (ie 1000MBps), is 6K raw at 60 fps possible using 1:1 crop mode? Hahaha.

http://www.eoshd.com/content/10324/big-news-hands-on-with-continuous-raw-recording-on-canon-5d-mark-iii
"1:1 crop modes -

    3592 x 1320 – I get some drop frames at this res
    2880 x 1320
    2560 x 1080
    1920 x 1080 (full HD crop mode like GH2)
    1280 x 720 (the lower the resolution the more telephoto the crop)
"

According to EOSHD's article, 1:1 crop mode can do 3.5k if CF card is fast enough.
Now I am dreaming, if we have a CF card of 1000 MBps speed, is it possible for ML to intercept somewhere upstream the raw feed right after the sensor acquiring the whole 22 mb frame at 60 fps (720p allows 60 fps suggests that raw feed can do 60 fps)?

You guys rock, cheers ML!

Is there a way to record the upstream raw frames right after the sensor acquiring data? That will be 7 k.

Assuming that we have fast enough CF cards,
we can do 3.5 k raw with 5x zoom with CF card of 150 MBps (Toshiba),
can we do 6 k raw with 10x zoom?