50D Raw video

[Andy600]

Updated install instructions here:  http://www.magiclantern.fm/forum/index.php?topic=9852.0

[smeangol]

Updated install instructions here:  http://www.magiclantern.fm/forum/index.php?topic=9852.0

[Andy600]

I'm ready  ...well I will be when I get a CF card 

[JulianH]

Looking forward to the results! I'm in the process of trying to find a cheap 50D

Smeagol, you got it actually working? Could you upload a clip or some dng's?

[menoc]

Just got the KomputerBay 64GB 1000x Card. Here's the bench mark test results for the 50D:



https://www.dropbox.com/s/ayw9fiblyzxvtaw/50D1000xTEST.BMP

[Andy600]

Just got the KomputerBay 64GB 1000x Card. Here's the bench mark test results for the 50D:



https://www.dropbox.com/s/ayw9fiblyzxvtaw/50D1000xTEST.BMP

Not bad. I think the 50d must have the same CF controller as the 5d2 but the file sizes are smaller. The Komputerbay card looks good. At those rates it's not far off being able to record the 1:1 crop size in 14bit and if/when they get the 12 bit compression working the 50d will probably be able to do it all. I'm glad I grabbed one now

Have you tried @smeangols latest build (2nd post in this thread)?


@JulianH - it's a great time to buy one if you can

[menoc]

Not bad. I think the 50d must have the same CF controller as the 5d2 but the file sizes are smaller. The Komputerbay card looks good. At those rates it's not far off being able to record the 1:1 crop size in 14bit and if/when they get the 12 bit compression working the 50d will probably be able to do it all. I'm glad I grabbed one now

Have you tried @smeangols latest build (2nd post in this thread)?


@JulianH - it's a great time to buy one if you can

Trying it now . . . .

[menoc]

Trying it now . . . .

Wow! Beautifully clean images at 1592x720. No dropped frames all the way to the 4GB file either!. Man, If we could only get the magenta shift fixed and larger than 4GB files!

Will try other crops later.

[a1ex]

Post some sample DNGs showing the magenta shift.

[JulianH]

Wow! Beautifully clean images at 1592x720. No dropped frames all the way to the 4GB file either!. Man, If we could only get the magenta shift fixed and larger than 4GB files!

Will try other crops later.

Great! Could you try 1280x1080 or 1280x960? I'm hoping this will work, would be great for 2x anamorphic at 2560x1080 (2,37:1) or 2560x960 (2,66:1).

[Andy600]

@menoc - Excellent! The magenta shift sounds like the black point issue.

@a1ex - Is the black point problem in the raw_rec module or the .bin? I can compile now BTW

@smeangol - once this is sorted you should submit a pull request Sounds like you're close!

I wish my CF card would hurry up and be delivered

[a1ex]

Black point will be correct only if the raw skip offsets (in raw.c) are correct. Otherwise, the calculation will be wrong.

If you post a DNG, I can tell if the offsets are correct or not.

[Andy600]

Black point will be correct only if the raw skip offsets (in raw.c) are correct. Otherwise, the calculation will be wrong.

If you post a DNG, I can tell if the offsets are correct or not.

I've sent you @smeangol's raw.c if that helps? He has created a fork on Bitbucket but not added his changes to it atm. I have a copy of his source though.

[JulianH]

Picking up a 50D tomorrow. Right now i'm using a friends 5D II with a Sandisk Extreme Pro 32GB 95MB/s (works fine with the max speed of the 5D II somewhere around 60MB/s). Will benchmark that in the 50D and try do do some 5DII vs 50D tests if I get everything running on the 50D

Raw video on a 5 year old dslr from before the hdslr era. Would have laughed everyone in the face if they told me this a month ago. Absolutely bonkers 

[1%]

Really easy to find the skips... set them all to 0 in raw.c.. take some silent DNG. Count black borders in phtoshop

[araucaria]

Hi, I guess this is the typical n00b trolling first post ^^. I will get a 50d tomorrow for RAW video, any reason I should stay away?

Could anyone tell me if the quality is similar to the 5dmkii. I'm asking because I have a d800 and I have been comparing it to the raw shoots of the 5dmkii and they look a lot better indeed, so if the 50d will have the same quality it's defenitly a nice thing to have (despite 1.6x crop). Since I need the d800 I won't jump ships and this seems a cheap way to have an alternative for those shots that make me yell at the d800.

Excuse my manners, I got so excited.

[Andy600]

We don't know yet. The sensor size is different to the 5d2 and I'm not yet sure how this will affect things like moire and aliasing. Raw video on the 50d is very much a work-in-progress as is the 5d2 version. I'm going to shoot some tests this weekend and do a comparison with the 600d. I know which one will win but by how much? 

[CFP]

I know which one will win but by how much? 

Stop making me jealous!

[smeangol]

@alex

http://www.smeangol.com/000026.dng

This is a dng from a "zoomed in like X5 or X10" shot - in this mode you get a 1920 X 1080 style frame - but it doesnt work perfectly :/
The Normal not cropped /zoomed LV mode should ~ 1500 X 1000 work without disturbance.

[araucaria]

@alex

http://www.smeangol.com/000026.dng

This is a dng from a "zoomed in like X5 or X10" shot - in this mode you get a 1920 X 1080 style frame - but it doesnt work perfectly :/
The Normal not cropped /zoomed LV mode should ~ 1500 X 1000 work without disturbance.

Thanks smeangol, do you have any sample dng of the 1500x1000 "crop".
I have a sample posted here on the forums taken with silent shutter which is 1592x1062 and even with the visible aliasing/lineskipping it looks great, even upscaling it to 1920x1080 it looks way better than 1080p h264 footage from my d800, I mean, just the fact of  being able to use ACR on video makes me the happiest man on the world (I'm not a real video guy, I come from stills but people want video).

This raw recording is from the same source as the silent shutter, I suppose.

[smeangol]

Zoom LV with Resolution of 1992X1084 seems to be far less disturbed: http://www.smeangol.com/1992x1084_seq.zip
First few frames are rubbish, the recording ends with some dropped frames due my lame CF Card.

Thanks smeangol, do you have any sample dng of the 1500x1000 "crop".

This resolution belongs to the normal field of view

[araucaria]

Zoom LV with Resolution of 1992X1084 seems to be far less disturbed: http://www.smeangol.com/1992x1084_seq.zip
First few frames are rubbish, the recording ends with some dropped frames due my lame CF Card.
This resolution belongs to the normal field of view

Yea that's why I said "crop", just wanted to know if you had any "screen grab" sample of that mode.
Downloading your sequence to give it a try on AE, btw what card did you use? Thanks for the sample btw

I loaded up your dngs in After effects and beside the corrupt images the score seems to be yellowish (after adjusting white balance tint), is it the lighting?
Btw that magenta shift menoc is talking about, is it the wb issue or is he referring to the corrupted magenta colored frames.
I'll make test with different settings if it helps when I got the 50d (ich hab' keine ahnung von programmieren)

[menoc]

OK,

Komputerbay 64GB 1000x CF card benchmarks;


@ 1592x1062, writing to the card stops after about 50 frames; @ 1592x960, writing to the card drops frames but writes to 4GB; @ 1592x840, writing to the card drops frames but writes to 4GB; @ 1592x720, the 1st try stopped at 100 frames, the 2nd try wrote a 4GB fie without any frames dropped; @ 1280x720, writing to the card finishes the 4GB file without dropping frames.

Here you can download the sample DNGs:

https://www.dropbox.com/s/gnjjdzbi1s9g4xy/000023-1592x1062.dng
https://www.dropbox.com/s/o073davr3x3z0c7/000009-1592x960.dng
https://www.dropbox.com/s/j3674mdktlsfq1g/000027-1592x840.dng
https://www.dropbox.com/s/3k9h8o3d0axyibq/000095-1592x720.dng
https://www.dropbox.com/s/jbt34r1ziuscjva/000040-1280x720.dng

Here's a sample image with the pink tint - is this fixable? (it's really not a big deal- it's easily fixed in post). There's also a black line running vertically on the left side of the image - but you have to download one of the DNGs to see it.

ISO 320/F3.5/23.988FPS

[Greg]

https://www.dropbox.com/s/gnjjdzbi1s9g4xy/000023-1592x1062.dng

dng has a black frame, resolution should be 1590x1060

[araucaria]

[spoiler]OK,

Komputerbay 64GB 1000x CF card benchmarks;


@ 1592x1062, writing to the card stops after about 50 frames; @ 1592x960, writing to the card drops frames but writes to 4GB; @ 1592x840, writing to the card drops frames but writes to 4GB; @ 1592x720, the 1st try stopped at 100 frames, the 2nd try wrote a 4GB fie without any frames dropped; @ 1280x720, writing to the card finishes the 4GB file without dropping frames.

Here you can download the sample DNGs:

https://www.dropbox.com/s/gnjjdzbi1s9g4xy/000023-1592x1062.dng
https://www.dropbox.com/s/o073davr3x3z0c7/000009-1592x960.dng
https://www.dropbox.com/s/j3674mdktlsfq1g/000027-1592x840.dng
https://www.dropbox.com/s/3k9h8o3d0axyibq/000095-1592x720.dng
https://www.dropbox.com/s/jbt34r1ziuscjva/000040-1280x720.dng

Here's a sample image with the pink tint - is this fixable? (it's really not a big deal- it's easily fixed in post). There's also a black line running vertically on the left side of the image - but you have to download one of the DNGs to see it.

ISO 320/F3.5/23.988FPS

Nice samples!
Could you try using less horizontal resolution and keeping the 16:9 aspect. 1427x802 should have the same pixel number as 1592x720, dunno if magic lantern lets you set that akward resolution.