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Messages - araucaria

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51
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 22, 2013, 02:54:56 PM »
Hey Andy, is there a way to go above 1/120 shutter speed?

52
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 21, 2013, 04:16:50 AM »
Is there a way to go above 1/120 shutter? I'm using tragic lantern and I have exposure override activated. (I don't care about the stutter in movement)

53
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 19, 2013, 12:47:22 AM »
I have a 600D.  Aliasing is markedly reduced in 3x zoom WITHOUT VAF.  VAT-TXi works on full resolution 1920sx1080.  It does not work on the 720p resolution.

I am seeing a bunch of resolutions for the 50D.  Which ones would work with a theoretical VAF?
The 50d does not have a 720p mode, there is only Full sensor mode and Crop mode. As I said the crop mode doesn't need a VAF it is the full frame that needs one.
The resolutions you can choose between are nothing but crops out of the full stream. For example, if you choose 1280x720 and you are shooting without zooming in it will be the 1280x720 pixel portion out of the full 1584x1058 stream, but the sensor is still in the same mode, the same lines are skipped, lines that have to be "blurred together" to avoid the aliasing artifacts.

54
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 18, 2013, 10:44:43 PM »
The problem as I understand it with Anti aliasing filters is they work best at one resolution.  So which resolution is Mosaic Engineering going to make it for?  I got the 50D to shoot raw.  As I understand it at the moment Full HD raw is currently not available so I will be relegated to using a lower resolution raw for the time being.  Are they going to make a $300 filter for the lower res raw?
It has to be design for a specific sensor and should be used in the normal mode (no zoom mode). That's it.

The 50d do have fullhd mode, but it is a zoom mode (3x crop) which reads every single pixel so there is no need for an extra aliasing filter.

As you can see it has nothing to do with resolution.

55
Raw Video Postprocessing / Re: The CinemaDNG Discussion
« on: August 17, 2013, 01:35:26 PM »
It won't show, it only accepts footage in cdng. I took a small cdng secuences made with your converter and opened it in PS as 16bit then clicked save as, DNG, uncompressed, and then tried to open in Speedgrade without luck (it won't render it "Failed to decode frame).

I'll try to read through the Adobe forums, thanks a lot!

56
Raw Video Postprocessing / Re: The CinemaDNG Discussion
« on: August 16, 2013, 07:05:03 PM »
Since Davinci Resolve won't work fine (even after blurring the chroma,etc...) I wanted to try out speedgrade. It plays the cdngs at realtime (with a shitty 560ti, resolve wouldn't do more than 12fps with 1080p footage) but everything has a green cast to it. Is there already a cure? I'm a total n00b to speedgrade, so any help is welcome!

57
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 16, 2013, 05:37:33 PM »
no offense
it looks stupid to me)
I don't think anybody needs a retarded comment like yours, if it looks stupid (whatever that is) to you, at least explain yourself, otherwise you're a troll.

Greetings

58
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 15, 2013, 11:50:47 AM »
I've been in direct contact with Mosaic Engineering. In fact, I am sending them a 50D tomorrow so that they can fit and design the new VAF filter!!! This is going to rock!
I'm eating my words rigght now ^^ good news.

59
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 15, 2013, 01:44:06 AM »
I doubt they will do a vaf filter for the 50D, if you think of it there might be 1000people maximum using the 50d for raw video, and most of them just to try out raw for a few $. I don't think they would sell more than 100 vaf filters.

60
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 14, 2013, 06:49:33 PM »
You will have to tell us a little bit more about your noisy footage. Anyway, usually, to avoid noise you will try to expose (changing the shutter speed and aperture) to the maximum, and use the lowest iso you can. This will give you the best you can get in terms of noise.
If you are trying to film a concert or anything dark, get another camera.

61
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 14, 2013, 06:29:55 PM »
There is no magic key to grading, watch tutorials and learn...

62
Tragic Lantern / Re: Flicker in ACR/After Effects
« on: August 14, 2013, 04:28:07 PM »
Do these profiles include the 50D's noise patterns and other things ACR has specifically profiled for the camera, or are just flat profiles?
Just flat.

63
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 14, 2013, 02:16:47 PM »
The final look is up to you, with this, adjusting your exposure in  ACR, and then some curve plus some lut in After Effects you can get a quick grade if that's what you are looking for.

64
Recovering highlights works nice, you have to change to log color wheels, then under high range go down to 0.333 or less, then go to the highlight wheel and pull it to the left (not the actual color wheel but the one below that changes brightness) then go back to highrange and fine tune.

This method of getting the pink away is nice but it doesnt kill the artifacts (at leastwith 50d footage)

65
Tragic Lantern / Re: Flicker in ACR/After Effects
« on: August 14, 2013, 12:18:33 PM »
On a Mac you have to:

  • Download and install the DNG Profile Editor from Adobe
  • File -> Open an DNG image
  • Under Base Profile load the custom .dcp camera profile
  • File -> Export Profile, which will save it in the correct folder, so you can use it in AE or PS
I think you will have to do the same on windows.

66
Raw Video / Re: Turn your RAW footage into LOG
« on: August 14, 2013, 05:12:10 AM »
I made some camera profiles which should give you something like log and create no flicker.

http://www.magiclantern.fm/forum/index.php?topic=5586.msg66775#msg66775

67
Tragic Lantern / Flicker in ACR/After Effects
« on: August 14, 2013, 04:58:11 AM »
Okay, there have been popping up presets for After Effects/Adobe to get flat pictures, import or render them to 10bit and apply luts or whatever. I've also read people complaining about flickering in ACR.

So far so good, I remember that on LRtimelapse (nice program) there is a general consens to not use highlight recovery, black , white, shadows,etc... because they are not linear but some "secret sauce" which depends on the scene. This doesn't matter to stills (which it was designed for) but when movement comes into play this can actually generate flicker. It does not always happen, but sometimes you get the flickering.

To avoid this, I have "created" two a camera profiles which give you a very flat picture style and some desaturation. This is just a test as I'm not an expert but I think it works fine (tried out with the 50d raw video with cdng files). I will look into it again when I have some time. Here are the camera profiles:

https://www.dropbox.com/s/sxxj82szbimxn8f/MLfilm%20slight.dcp
https://www.dropbox.com/s/8yhv4qsquaygs3s/MLfilm%20strong.dcp

You have to put them into c:/users/"your username"/AppData/Roaming/Adobe/CameraRaw/CameraProfiles

Afterwards they should appear under the camera calibration tab.

68
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 13, 2013, 10:48:09 PM »
Hey new to the forums, but not to magic lantern :)

Just want to tell you people how awesome you are. Big love for magic lantern.

I have a question to acctually,

How come you can't record in 1080p without crop? Because of the cf card speeds or camera write limitations? Shooting in crop is a hell for framing :p

And can you playback your recorded raw footage? Seems like I can't find that option?

thanks!
In tragic lantern there is a ML preview which is a low fps black and white live view hack which shows the exact framing, it has some limitations but it works. You can't record 1080 outside of cropmode.

69
Raw Video Postprocessing / Re: The CinemaDNG Discussion
« on: August 13, 2013, 10:39:58 PM »
Thank you :D

70
Raw Video Postprocessing / Re: The CinemaDNG Discussion
« on: August 13, 2013, 05:55:35 PM »
@chmee

Maybe this has already been answered but, if I got it right the cdng format is just a tiff with some metadata (or whatever) this means it's already debayered, right? But when I put these clips into Resolve (coming from a 50d) I get false colores and artifacts from debayering, although they show up correctly in ACR. I don't get this  ???

71
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 13, 2013, 03:52:10 AM »
I will post some comparsions of 50d dual iso vs d7000,d300,d800 for you, but I will wait until it's more tested.

And honestly, the 50d is pretty bad at stills, it has a nasty filter (very soft) so it doesn't even stand up against 12mp cameras and the ISO performance is also not up to the task when compared to any modern camera (apsc,fullframe,m43,etc...).

72
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 12, 2013, 04:02:26 AM »
The shot I posted above is 3x crop ISO800 at F4 - is that not shallow? I could shoot the same thing again in non-crop and the DOF will be no different. I think the crop vs non-crop argument is more relevant to print resolution. Afterall, there is only a certain amount of pixels on a screen/monitor. Crop mode removes the aliasing/moire problems. Shallower DOF helps with those issues for non-crop modes.
There is real "crop mode" where DOF is screwed up (EOS-M/600D/650D) and the 5X zoom mode where its just less pixel skipping so DOF is the same, you're just shooting through the middle (hopefully) of the lens. Actually it should be better quality since you're using the center and can cut off vignettes/edge distortion/etc.
I've come across this and I don't quite understand it,in general terms, dof depends on focal length and aperture. So if you shoot a 12mm at f4 on 3x crop you will get an fov equivalent 57,6 but the dof will be the same as on the 12mm @ f4 but not the same as a 58mm @ f4 on the full sensor, if I remember it right it would be more like a 58mm @ f12. I don't know what lens you are shooting with (andy) but if there is a shallow depth of field in the shot it's because you are very close to the subject in relation to the background.

So actually it "screwes up" the dof. I would also know how this mode is not a real crop compared to what ever distinct mode there is on the 600d,etc... Just curios ^^.

Regarding anamorphics, I just got a sankor 16c on ebay for 150€ (I know, its not the best deal but it's getting harder to get a decent deal, the sankor still is somehow accesible).
I'm looking for a decent taking lens, I asked on eoshd but..., so I'd like to know if anybody has some experience. I think 58mm 44-2 should be right but if anybody has a better idea I'm starving for suggestions!

73
Raw Video / Re: Help with hot pink artifacting in CDNGs?
« on: August 06, 2013, 09:41:40 PM »
It's a know problem with resolve, you can either blur the chroma or use After Effects.

74
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 01, 2013, 07:26:38 PM »
thnks!!!!! never heard about rawtherapee...

i'll try right now!
After effects also works better than resolve.

75
Tragic Lantern / Re: Raw video on 50d and 40d
« on: August 01, 2013, 12:24:20 PM »
OK thank you!

I have another problem.
All my shots have WB value of 4654 when i extract them with raw2dng. I have tried different values in-camera but nothing helps. So all my shots are a bit to the purple.

Any ideas?
That's the way it is, use raw2cdng which fixes it for you.

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