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Messages - antoinecormier

#1
Thanks again mk11174 !

Would It be possible to use this build with the previous raw rec (ML_Raw_fps_ETTR contains it !) ?
It had some pretty cool features (such as deleting RAW videos, and first and foremost, It had much more resolutions choices !).
It could be awesome, if the new build would let us do 1100ish resolution without having to use FPS override..

I've tried to use the new .bin with the previous raw rec but the module wasn't able to load.

I might be misunderstanding. Don't blame me ! :)

Have a nice day/night all !

(and once again, I apologize for my pretty weak english  :-[ )


#2
Quote from: Pharinen on May 26, 2013, 09:09:58 PM
What build you're using?

This? http://www.magiclantern.fm/forum/index.php?topic=5582.msg40579#msg40579

I tried to record 1120x374 @ 23 fps, but I only got 62 frames..

BTW 960x408 @ 23.976 fps seems to be very stable, I just recorded almost 7GB(~11 000 frames) file.

I'm using Sandisk Extreme 45MB/s card.

Hello Pharinen !
To answer you : I'm using the same card as you, the Auto ETTR build (the one that you pointed out). The only things that are enabled are the RAW Histogram, the FPS Override (23 fps) and the Raw Rec Module. I've disabled the sound recording, and I've enabled the "Hack Mode" (that seems to do absolutely nothing...)

Have you tried to set your "FPS override" to a lower fps (22, or even lower) ?
I manage to shoot continuously at 23 fps. The maximum frames I've recorded must be something like 2000 frames.


My build version and my way of using it have nothing special, I'm afraid that I can't help you...

The next step would be to enable the SRAW choice, don't know If It could improve the raw recording, but It may help us in enabling more stuff !

Oh, And I've noticed something pretty weird and I don't know if something can be done about that :

The write speed goes down and then goes up and down again... It's not constant and varies A LOT (20mo/s and then 18mo, 16, 15, 21, etc...). I've read somewhere that wthe the Sandisk 95mo/s this speed stays at 20ish mo/s and doesn't vary.

Is it true ? If yes, the 45mo/s Sandisk card could manage to get the same results one day ? Or is it something more complicated ?

Anyways, thanks all for the efforts you put into hacking our 550d !

Have a nice day !
#3
Hello !
So I've tried your latest version mk11174, and I may have found a way to use the actual RAW rec module, a way that suits my needs...
I'm not really pleased by the 960x408 resolution, to my mind we are losing too much sharpness.
That's why I go 1120x374 (3:1 aspect ratio, Yep, I know that's an ultra wide ratio  ::)...) and It manages to work without frame skipping !
But you have to set your FPS override to 23 fps (prefer "exact" in the FPS override settings, It seems to run better...).
The difference between 24 and 23 is hardly discernible.

Anyways, when you scale the RAW image to 1920 the results are pretty good in terms of sharpness, and you have control over the RAW possibility ! The "landscape" still miss a bit of sharpness but at least you gain the benefits of the huge dynamic range !

Here are some screenshots

https://www.dropbox.com/s/rvucbjcgt9wj665/first%20screen.png

https://www.dropbox.com/s/a9tkll47esccswt/large.png

Have a nice day !
#4
First of all, I would like to thank you guys for all the effort you put into this project.
I've done some tests with your bin mk11174, and everything worked as expected (960x408 max at 24 fps, 1280x300ish at 17fps with override..)

Too bad, because the results with the 1280 (3:1) ratio were very wonderful ! And If you like shooting at a (very) wide ratio, It could be an amazing feature. When the RAW is scaled to 1920x640 It gives us a sharper image than the 1920x1080 H264 and RAW benefits.
The 960's resolutions miss a bit more sharpness to my mind.

Unfortunately, If I'm understanding well, It only has to do with the SD controler inside the 550D, that means that the only way (for the moment) that could help us is the "14 to 12 bits" experimentations ? Am I right ?

(I apologize for my pretty weak english, I'm french :/)