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Messages - rommex

#26
Tragic Lantern / Re: 50D Raw video
January 16, 2014, 10:36:09 PM
I forgot to load mlv_player ((( I'm a noober  >:(

But still, the playback mode turns on when I press Play. When I press PicStyles -- pic style.

I have a commercial shoot tomorrow and really don't want to switch builds. I'll test the new one afterwards.\

THANKS!!!!
#27
Tragic Lantern / Re: need help
January 16, 2014, 10:27:05 PM
Quote from: Andy600 on January 16, 2014, 10:23:24 PM
Press the play button (top scroll to scroll through takes). Controls for playback are accessed with the PicStyle button. B&W + color is selectable for raw and mlv files.

I'm doing exactly this, but PicStyle evokes pic styles ((

I have Tragic_Lantern_50D109-Andy600.2013Dec15

Thank you for this swift reply, Andy
#28
Tragic Lantern / need help
January 16, 2014, 10:18:26 PM
PLEASE HELP!

It's late and I'm slow to find a solution:

I have the latest TL and I used to have this bw playback of raw files. But now I can't find it. Stupid me ((( Tomorrow morning is the shoot....
#29
Tragic Lantern / Re: 50D Raw video
January 16, 2014, 08:13:18 PM
Quote from: dogmydog on January 16, 2014, 05:41:28 PM
I'm about to shoot a clip on a beach in the next days.
My worries is the excess of light and DR. Hence some questions:

1) Should I use a low ISO like 100 or try to beam it up to get more DR?
2) Can we get higher shutter speeds then 1/48 when shooting raw or MLV raw? I don't have ND* filters, only a B+W Polarizer I intend to use.
3) Camera heat... I'll use a 7D as a backup, with no magic lantern, shooting H264 if raw on 50D fails. I'm thinking about bringing some ice packs on a box to cool it off when not in use.

Maybe thats a little off topic, but it's 50D and raw video use, so any tips will be highly appreciated :)

Yep, usually lower ISO secures the widest DR available for the sensor.
In my 50D I can set up 1/147s as the shortest shutter speed.
I shot a commercial with 7D H264 in summer 2 years ago. Overheating was huge (
#30
Tragic Lantern / Andy's sample
January 16, 2014, 05:30:49 PM
This particular area is particularly interesting. It's hell of a dark, it's 50D, and we have such gradations of tonality here...

#31
Tragic Lantern / Re: 50D Raw video
January 16, 2014, 05:11:19 PM
Quote from: Andy600 on January 16, 2014, 04:30:12 PM
Re: my earlier tease - here's a frame grab from the 50D (crop) with only a hint or NR, a curve and a little sharpening added. Very minimal work to get this. Nice detail?


wow... was it crop mode? what ISO?
#32
Tragic Lantern / Re: 50D Raw video
January 16, 2014, 01:52:24 PM
Quote from: Andy600 on January 16, 2014, 06:30:40 AM
.... but not sure yet if this is coming to the 50D.

:-[ :-\ :'(
#33
Tragic Lantern / Re: 50D Raw video
January 16, 2014, 11:29:15 AM
Quote from: Audionut on January 16, 2014, 11:19:20 AM
All sensors behave differently because they have different pixel well capacities, electronic noise, linear gain, etc, etc. 

http://mikeboers.com/blog/2013/11/07/linear-raw-conversions

Thanks!

While being linear in the main section, raw values do differ in the foot and in the top (judging by dcraw graph). And while some curve is applied in software, these differences just change the form, but they stay.

This is exactly the pivotal point of my curve -- how it ends up and down. And my curve is exactly the thing that thousands of people operate with in their post-production.

So thanks for clarification.
#34
Tragic Lantern / Re: 50D Raw video
January 16, 2014, 10:52:02 AM
Quote from: Audionut on January 16, 2014, 07:28:58 AM
You curve shows the curve that your post processing software, or Canon picture style is applying to the linear raw data.

The raw data is always linear.  The connection between light and the reading from the sensor is linear.  Since human eyes are not linear, a tone curve is applied to make the output more closely resemble what human eyes, see.

So, from your words, the raw data contains not lighting measurement itself, but log(2) thereof. That's clear.

But if RAW data is only about EV, why such curves from Canon and BMCC (imported in the same way to the same software) differ. Why these sensors have different DR? If RAW data had only linear EV data, all sensors would behave the same way.
#35
Tragic Lantern / Re: 50D Raw video
January 16, 2014, 01:05:42 AM
Quote from: Andy600 on January 15, 2014, 02:40:16 PM
9 usable stops? Hmmm think again ::)

Some interesting ML developments happening and should go hand-in-hand with what I am about to release for your raw post workflows. It won't be free but will blow your socks off ;)

Andy please give a hint what is it? My impatience is exploding my mind :) I really need to know that my buying the second 50D and shooting with them both commercial stuff is cool )))))))))
#36
Tragic Lantern / Re: 50D Raw video
January 15, 2014, 04:43:27 PM
Quote from: a1ex on January 15, 2014, 03:54:32 PM
Did you look in the spotmeter submenu? One of the choices should be RAW, and the units are in EV.

(I don't know if it actually works in 50D though, maybe Andy can tell)

Yep, also found it and it works. But it measures the light in EV.  If I put light in EV on X axis, and light in EV in Y axis... Yes I get the straightest line indeed. What else can I get?  ;D So you win of course.

But my curve shows the connection between light and the reading from the sensor. We all work with the reading from the sensor in post-production, not with the light itself.
#37
Tragic Lantern / Re: 50D Raw video
January 15, 2014, 02:11:14 PM
Quote from: a1ex on January 15, 2014, 01:55:07 PM
I told you to use the RAW spotmeter, not the YUV one. This graph is Canon's picture style curve.

I used spotmeter that is in ML. Is there another, a RAW one? Please explain
#38
50D RAW curve based on ML/TL spot meter:



X - exposure (1 step is 1/2 EV)
Y - spot meter value
#39
Tragic Lantern / Re: 50D Raw video
January 14, 2014, 11:19:45 PM
Quote from: a1ex on January 14, 2014, 11:15:37 PM
If you draw a curve with the RAW spotmeter, it will be linear, of course. Just make sure you have the same kind of data on both axis (either both linear or both log, but not mixed).

With all due respect, it will not be linear. I will give the numbers tomorrow.
#40
Tragic Lantern / Re: 50D RAW Curve
January 14, 2014, 11:09:38 PM
Quote from: dogmydog on January 14, 2014, 09:50:17 PM
Very cool, rommex!
Do you happen to know how does that curve compares to 7D RAW Video? Or the 5D Mark ii?

No, I have no idea about those cameras. If somebody can make measurements...



Quote from: a1ex on January 14, 2014, 10:34:21 PM
Raw is linear on all Canon DSLRs.

This curve is not for raw; you simply revealed the default processing curve (look) in Resolve.

If I draw a curve from the ML built-in spot meter, would that be closer to the truth?

Or if I import those files into Adobe RAW?

UPDATE: I was thinking a little bit about what you wrote. Whatever Canon RAW is inside, I think it is still fair to research how people PERCEIVE the curve in their daily work because this is the form in which it exists for them, and will ever exist.
#41
Tragic Lantern / 50D RAW Curve
January 14, 2014, 04:07:22 PM
Hey folks,

I just did a response curve test for 50D in RAW video mode.

Below is the curve that I found. One step is 1/3 degrees. The levels are as displayed in DaVinci Resolve before any adjustment.

Main findings:

1. Usable (my personal view) DR is 9 stops. (Don't kill me on this, I like 50D the way it is).
2. Above the grey point (12.5%) you have 3 and 1/3 degrees of normal contrast, then 1 degree of highlight roll-off.
3. Below the grey point you have 2/3 degrees of normal contrast, then 4 degrees of low-contrast shadow area.



If you happen to understand Russian, I did a long boring video explaining the curve and what you can do about it:
http://youtu.be
#42
Raw Video Postprocessing / Re: The CinemaDNG Discussion
December 26, 2013, 11:54:40 AM
Quote from: chmee on December 26, 2013, 11:03:49 AM
Happy Christmas, mediali & rommex.

Thanks. So, the fps-problem is a thing inside resolve. You have to adjust the basic settings of your project. It seems, resolve is not interested in the fps-metadata.

The problems Wirth the newer versions will come From the multithreaded reading. I'll rewrite that. So stay on 1.3, for resolve it makes no difference.

Thanks, chmee. FPS is not big deal, really. But what about the naming issues? Any plans to resolve them?
#43
Tragic Lantern / Re: 50D and 40D Raw video
December 26, 2013, 09:09:52 AM
Quote from: LEVISDAVIS on December 26, 2013, 08:14:18 AM
Posted a 5 minute video featuring the 50D and the BMPCC. It's not your typical camera comparison video... It's more of a get to know your camera for what it's worth type video. I hope it helps you look further into the power of the camera. Here is the link to the video.

http://youtu.be/1eNuxW5fIew

Thanks bro!
#44
Raw Video Postprocessing / Back to Resolve?
December 25, 2013, 03:05:30 PM
Hello Chmee,

I've been long a fan of your application, but only recently discovered this thread (stupid me).
I read it wholly before I was going to make some points.
First I want to thank you for your efforts and readiness to help.

I'll try to be brief in my points:

1. DaVinci Resolve. As I got from this forum, there was a trend to move to Adobe from Resolve due to a better de-bayering. It was true with Resolve 9 (I hated it) but Resolve 10 for me show far FAR better results than Adobe ACR. I shoot with 50D, and artifacts from Adobe are huge compared to Resolve 10.

Things move quickly, and maybe somebody should give Resolve 10 Lite a try.

2. Roundtrip. So I use R2C for Resolve and Premiere roundtrip. I read the whole discussion about naming and XML problems and while reading really had a desire to jump back into the past ))

2.1. FPS. Now, I am shooting 25 FPS, but when imported to Resolve, all clips are 24FPS. Have to change it manually. When I forget, I have a de-sycnh with audio, and have to re-render. But this is the beginning for surprises ))

2.2. Folder naming. So I have 2 clips from shooting raw video:

1.M24-1803.RAW +2 spanning files
2.M24-1806.RAW +2 spanning files

They were shot in consequence, one after another at 18:03 and 18:06 yesterday, 24 Dec.

After conversion (made today on 25 Dec at about 15:00) I have 2 folders:

131225_1235_M241803K
131224_1235_M241806N

Why 131225_ and 131224_ ? Why _1235_ and _1235_?
All this makes basically impossible to sort these folders by name.

2.3. Resolve clip naming.
When imported into Resolve, these clips show as:

M241803K.[000000-003194].dng
M241806N.[000000-004983].dng

That is a step back -- I can sort them now, which is good. But after grading when I render my dailies with "Use source filenames" checked, I have files named:

M241803K.mov
M241806N.mov

2.4. XML issue. After editing these files in Premiere, I export XML file for Resolve. And of course I have that problem where only the first clip shows ok, and others have error. Yes now I know about the solution with reelname suggested by a French-style contributor.

But I also solved this problem in my way: I searched through XML file and changed:

M241803K.mov to M241803K.[000000-003194].mov
M241806N.mov to M241806N.[000000-004983].mov

And now the problem was solved -- Resolve made all linking correctly, without reel name.

Of course you cannot do that for big projects, but I think solution is in file naming -- to make Resolve import clips and render clips with the SAME NAME.

3. 1.4.8 version.

Presently I use 1.3.0 because 1.4.8 is totally unstable for me -- it crashes in the middle of every second conversion. 1.3.0 is as solid as a rock ))

I also tried MLV conversion after placing mlv_dump.exe into the R2C folder, but the program shows only one frame from the clip. Failed to convert.

And by the way, on the screen shot you have 1.4.9. Are you hiding anything?  :D  Just kidding!

Let me say big THANK YOU for your sincere efforts! Happy Christmas!

#45
Tragic Lantern / Re: 50D and 40D Raw video
December 19, 2013, 11:54:29 AM
Quote from: bzhwindtalker on December 18, 2013, 02:55:38 PM
Hey guys, I did a comparaison between the 50D and a panasonic G6 and it hits hard...
For my use the G6 is a much better camera...

Very nice slider shots. But you should work more on the sound design -- couldn't hear well what you say there.
#46
Tragic Lantern / Re: 50D and 40D Raw video
November 29, 2013, 05:25:39 PM
Quote from: lomka on November 29, 2013, 04:51:44 PM
just purchased a 50D + 50mm f 1.4 lens from the amazon and it comes with 16 gb lexar 600x CF card will i be able to record in a raw with it?
I was able to record 1600x900 raw continuous at my Transcend x600 32gb card. Not Full HD at crop mode. In any case test your card. However keep in mind it will contain only 3-4 min of raw video.
#47
Tragic Lantern / Re: 50D and 40D Raw video
November 29, 2013, 04:01:40 PM
KNOCK-KNOCK, anybody out there?  :o

I hope you people are fine and okay, just busy enough to drop some posts here....

Anyway, I'd like to share my experiences using the TL of October 11.

Overall I like it -- it is stable and gives good consistent results. But if I may rephrase Leo Tolstoy, we all say the same thing when everything works ok - "happy", but we bring in the difference when there is some glitch.

So, glitch-wise:

1. If I set up "Zoom on HalfShutter", this function works only when the lens is set to MF, and the screen goes purple. When I zoom in by pressing the Zoom In button in Live View, the screen has correct colors.

2. I tried to set new folders from the Canon menu: Manual Reset -> Create folder -> Select folder.

So, I had in the folder 100CANON files M29-1426.RAW and M29-1427.RAW as the ending files.
When I created new folder 101CANON and started recording, it started with M29-1426.RAW and so on... Any clues why? I expected M29-1428.RAW to be the right name for the first file in the new folder.

3. Since I have two 50D bodies right now, I do some comparison in performance. And I noticed that on one body I can set up the shutter at 1/47.8 then 1/50.7, while in the other body I have 1/47.7 and then 1/50.5. I have copied the ML files from one to another, so they have everything equal, including config file. What is the reason for that?

Also, from my wish list: is there any simple solution to somehow rate/ mark files on the go - the ones that I believe will be the best?

Thanks!

Peace  ;D
#48
Tragic Lantern / Re: 50D and 40D Raw video
November 16, 2013, 03:12:12 PM
Quote from: D.L. Watson on November 14, 2013, 08:22:49 AM
I'll probably get some hate for posting this, but here it is anyway. A comparison between the 50D and the Blackmagic Pocket Cinema Camera RAW.



50D is still the incredible useful for it's price, but if you like the flexibility of the 5D Mark III RAW video but don't want to pay $3,000+, consider the Pocket Cam. Especially since it's now in stock.

Haha, peace, DL, no hate )))

Basically I did such test with 50D and BMCC, published here some weeks ago. Roughly the same results. No big deal. I estimated the difference in 1-1.5 stops.

These are two awesome tools and I guess a comparison between them would cause hate from some immature guys ;))

One note, though, that when comparing two bodies there must be some reservation about the lenses. I guess when you add to these 'cheap' -- in a respectful way -- bodies some decent  3-4 lenses, the $500 difference would vanish. So it is all about the lens preference and availability. Personally, I have 7 adorable Canon EF lenses, and 50D is a God-send to shoot raw video. Just MHO )
#49
Tragic Lantern / Re: 50D and 40D Raw video
November 16, 2013, 02:18:56 PM
Quote from: CITY-U1001 on November 16, 2013, 09:22:26 AM
how convert raw to cdng in LOG ?

These are RAW containers. Why would you need at this stage????
#50
Tragic Lantern / Re: 50D and 40D Raw video
November 16, 2013, 09:11:05 AM
Quote from: joaomoutinho on November 15, 2013, 11:19:49 PM
Hi guys... First of all, I have to pardon me because I am in a workflow that I need to deliver footage tomorow.

Worked on a 50D raw, and now I am with a difficulty that I cant find the tuturial to merge all the .rar files and turn them to a single .RAW file
Working on a PC Win7 64Bit
Please help me!

And again, sorry for my question but I am really in a bad situation!

Hey,

Current version of raw2cdng joins all the parts automatically and converts the bunch into RAW sequence.

Still if you want to do it the old way you can use the prog File Joiner & Splitter. You have to edit file extensions before you use it - the prog explains it.