Messages

26

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 27, 2013, 04:45:48 PM »

Slug on my Clematis vine.

27

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 26, 2013, 09:07:56 AM »

Shot the moon this evening. It was so big! I took the raw video 10 mins after it showed itself above the horizon.

28

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 23, 2013, 12:49:48 AM »

Thank you so much!

29

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 22, 2013, 11:24:22 PM »

No, it's 1% who does the hard work. Tragic Lantern is his baby. He's the clever one  I just compile it.

I'm learning code but still a long way off being able to contribute anything.

Oh ok!

I hope I can share too in the future. I was trying to git pull the other day but was failing. I hope someone here can provide the .git link

30

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 22, 2013, 10:12:04 PM »

It's coming but it's a lot of work and I have to write it in between other work. I have about 40 pages written so it won't be too much longer

Coolio! Am I right that you own Tragic Lantern?

31

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 22, 2013, 09:17:16 PM »

If it's a paid one then it's not Andy600's.

That's what I thought too. I was looking for Andy's.

32

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 22, 2013, 07:54:00 AM »

Really happy with ML. Thank you folks!

Canon 50D
f/5.6
Canon 70-200mm @ 200mm
400x CF card

ML settings
Exp Override true
ISO 100
23.976 fps Exact
1/48 shutter
HaCKed
Global Draw false

1584x662 reencoded to 1920x1080 libx264 using ffmpeg

I post processed all the images in Linux using ffmpeg. I also used it to pad 139pixels top and bottom since a/r is 2.39. If I don't do it, YouTube down converts the quality to 480p Anyways, by padding it, I'm able to keep the high image quality.
I'm extremely happy with the results.

33

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 21, 2013, 08:34:05 PM »

Here is my latest one. What do you think?

34

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 20, 2013, 10:43:01 PM »

We can't break the laws of physics. Read some theory before asking the same things over and over.

The reason I asked is because when doing multiple shots using external intervalometer, I can get a very  clean shot on my 50D. I was under the impression that the dng files inside the raw file have the same quality.

Thanks.

35

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 20, 2013, 09:56:50 PM »

jaggy edges = aliasing
colors visible in the strings = moiré

Both caused by line skipping.

Got it. Is there any fix being worked on for this?

36

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 20, 2013, 08:10:59 PM »

Another question. Why are my guitar's strings not straight or smooth? The image was converted from DNG to JPG. The DNG when viewed 100% within Lightroom also shows the guitar strings broken and not straight(like the link below).

http://neil.privatedns.org/M000371.jpg

37

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 20, 2013, 05:29:15 PM »

Ignore the Cinestyle bit. I was confusing your issue with the one @v1rt was talking about.

ETTR should be in your modules list no? Look under exposure menu, switch it to 'always on' (for this test). Make sure you have exposure override enabled!

See how that looks and if you are still getting the same problems we'll explore things more. I'm guessing it is your settings and lighting conditions that are causing the issue and although you set ISO to 800 it probably needs more in this case.

I found the ETTR module. It's already set to ON. Also, my exposure enabled was also set to on. So looks like it's lighting conditions. I have a Panasonic TM700 camcorder. It is very clean in low light. I was expecting the video quality would be somewhat the same. I'll try ISO 1600 tonight, same spot.

Thanks!

Update: I was playing with ML and I saw Auto ETTR. What does do? I went inside and it shows
Exposure target says -0.5
Highlight Ignore 0.2%
Clipping Mode: no clipping
Slowest shutter: 1/16

38

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 20, 2013, 05:07:40 PM »

Hey Andy,

Yeah I'm now using the raw histogram and I still feel it's coming in underexposed.  I just downloaded andy's 50D guide so for the next day I'll be trying to get my head around this.  I'll let you know what I find out. 

Thanks All

Can you please post the link to Andy's Canon 50D guide? Thanks!

39

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 20, 2013, 05:06:38 PM »

Looks like the shot is very under-exposed for the lighting conditions. Can you upload a short raw file and I'll take a look?

Thanks Andy600! I just looked at my raw files. The ones I shot last night is around 1gigabyte. Do you want me to capture another short recording?

Try the same shot with auto ETTR enabled. My guess is that it will hit the ETTR limits (1/25 shutter ISO 1600 in video mode) meaning the scene is too dark anyway. Cinestyle will look brighter for sure but if you applied the same LOG curve as cinestyle to that footage it will likely look identical to cinestyle.

Andy, I got lost with this one. Where can I find ETTR? Also, I am using Gregory build. Should I use your build? Another thing, where can I find Cinestyle?
Sorry, I'm new to this.

Thanks!

40

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 20, 2013, 01:21:21 PM »

What am I doing wrong? I am trying low light. My resulting video is noisy that is similar to 3200 iso.
I chose LowLight from the settings, 1280x720, global off, 23.976 fps, manual aperture to f1.4(Asahi Super Takumar 50mm lens). I remember my ISO was around 400-800. I will try it again tonight once I get home.

Forgot to mention, I'm using the latest GregoryofManhattan build.

Not sure why I didn't get a response Should I post a video to get a response?

I tried my best last night and this is the best quality I was able to achieve. Is it acceptable?

41

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 19, 2013, 07:05:48 PM »

What am I doing wrong? I am trying low light. My resulting video is noisy that is similar to 3200 iso.
I chose LowLight from the settings, 1280x720, global off, 23.976 fps, manual aperture to f1.4(Asahi Super Takumar 50mm lens). I remember my ISO was around 400-800. I will try it again tonight once I get home.

Forgot to mention, I'm using the latest GregoryofManhattan build.

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Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 19, 2013, 06:49:32 AM »

in Desired FPS, do you pick 23.976 or 24? I'm using the former.

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Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 18, 2013, 06:46:07 PM »

@v1rt

shutter speed is mandatory for having a natural look of your images.
what you call "blurry" frames is the motion blur, and is not a problem, it's a requirment if you want the images to be similar to what a human eye would perceive.

so, first rule is that shutter speed has to be costant in your clips.

second rule is that it should be double the frame rate you choose

24 fps -> 1/48
25 fps -> 1/50
30 fps -> 1/60

this rule can be broken if you have extremely fast action scenes, where blurriness would make the picture too confused.
Only in these you can go up at a maximum of double the values explained before.

So, in general, don't try to minimize blur because that's what makes the images look natural!

Awesome! I'm going to try this tonight!

Btw, what is the difference between Gregory Of Manhattan Build and Tragic Lantern? What features or improvements is it on each build? Which build do you prefer folks?

44

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 18, 2013, 05:54:17 PM »

Need some tips about settings. When I record video on my 50D, I just make sure the white balance and exposure is right. I also make sure that my setting is at Manual setting. This means, I'll be adjusting iso, aperture and shutter. However, I don't pay attention to the shutter value but I think it's something I need to be concerned about. When I was looking at each dng files, I noticed some are blurry. I was thinking that maybe my shutter had a small value. Am I right that when I shoot, I should aim for at least 1/80 or more to minimize blurriness? I'm also aware that I should increase iso to suck more light but I'm also aware that image quality will be affected(more noise).

What do you think folks?

45

Tragic Lantern / Re: Raw video on 50d and 40d

« on: July 07, 2013, 08:00:36 PM »

Is there a tool that is capable of playing the raw file generated by ML? A 640 pixel wide resolution would be fine. I just need to see what I recorded. Didn't want to extract it and post process it just to see what it is.

Thanks!

46

Tragic Lantern / Re: Raw video on 50d and 40d

« on: June 29, 2013, 01:46:28 AM »

Yea, what errors?

At 1080P I'm getting predicted 2K+ even 2500+ frames... then around 4900MB something happens, buffer fills an it stops early, writes get smaller and smaller. Writing at 80-81 1920x1038 is continuous without this issue.

Do you think our 50D will be able to record 1080raw without stops in the future?

47

Tragic Lantern / Re: Raw video on 50d and 40d

« on: June 29, 2013, 12:41:19 AM »

Errors?

Yes, I'll try to recreate it again later and post it. Or maybe because my cf card ran out of space. I will have to redo it.

48

Tragic Lantern / Re: Raw video on 50d and 40d

« on: June 29, 2013, 12:31:08 AM »

That black screen happened to me too. I also had other errors.

49

Tragic Lantern / Re: Raw video on 50d and 40d

« on: June 28, 2013, 10:52:36 PM »

https://bitbucket.org/andy600/tl50d/downloads/1.percents.tragic.lantern.for.50D.test.only.compiled.by.andy600.zip

for best speeds set Dialog Timers to 'disable' in debug menu before going into Live View

Thanks a lot!

50

Tragic Lantern / Re: Raw video on 50d and 40d

« on: June 28, 2013, 10:30:32 PM »

Gregory's latest is up to date. I'm using 1%'s latest (own compile). Not sure if he's uploaded it anywhere???

Maybe I can try his build. Do you know where I can download it?