Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - David J. Fulde

Pages: [1]
1
Raw Video / Re: Mis-information by the pros about ML raw video
« on: September 18, 2013, 04:36:06 PM »
A comment I made on Philip Bloom's website comparing the early ML RAW workflow with what I imagine must have been like working with celluloid film on an article about shooting discipline never got approved, not sure why but I found it rather strange...

Also on other sites I keep hearing claims about overheating, or people saying they will never use a hacked camera for a 'professional' project but then seem to have no problem using consumer lever dslr cameras to shoot those same 'professional' projects...

Yet they have no problem using a hacked GH2/3 >_>

2
Raw Video / Re: 550D raw video recording port official thread
« on: September 01, 2013, 06:09:24 AM »
It'll be very kind of you for providing the hyperlink, Many Thanks.

Sorry! ha ha http://www.magiclantern.fm/forum/index.php?topic=7266.0

3
Raw Video / Re: 550D raw video recording port official thread
« on: August 31, 2013, 05:26:47 PM »
Any one successfully shots dual iso video and then post processing OK? mine case after download mk11174 cr2hdr and raw2dng file, dual iso raw video file still interlaced after using raw2dng (drag and drop method)

any methods that work for our beloved 550D? (i'm try to use alex method: using his raw2dng first and then cr2hdr but bad result in the end)

Son of a Batch has dual ISO support :)

4
It is not updated for the 700D atm.

but 650D,700D/100D might be similar at raw specs, only the 600D does not work very well because of the low SD write speed? Am i correct?
So what would someone suggest who already uses magic lantern on either on one or more of these cameras?

/edit:  Is it already known if the 70D records raw in 1920x1080?

no one really knows anything about the 70D I don't think a developer even has one yet.

5
Thanks. I'll look into the back button thing. What do you mean by desqueeze. Does it show the wrong aspect ratio now? Please post a screen shot.
If you want to go up one folder just press escape or click on the path above the source list.

When shooting in 720P mode is actually shoots in 1280x388 and then you need to desqueeze by 1.40x it would be great if we could set SoaB to do this automatically. Here is what it looks like: http://imgur.com/6cUt76U

It's kind of a way to do video compression without doing video compression (Yes, this looks horrendous but that is beside the point right now :P )

It
s a pain to need to do this manually for every clip. Maybe there is some sort of meta data you could use as a flag to desqueeze it?


6
Raw Video / Re: RAW video and super 16mm glass?
« on: August 28, 2013, 05:20:16 PM »
with a 1:1 crop, yes. But I am wondering if I could shoot without the 1:1 crop hence why the mm are what we are meauring as that it where our image circle will lie.

7
Raw Video / Re: RAW video and super 16mm glass?
« on: August 28, 2013, 01:05:07 PM »
Hopefully later this month I'll be able to try it out with some of my local Film co-op's gear :) I will, obviously, post the results ha ha

EDIT: By later this month I mean Next month

8
Raw Video / Re: 550D raw video recording port official thread
« on: August 27, 2013, 01:50:32 PM »
OK thanks Just need a little time for research Sooner

FYI use a site like Bhphotovideo which will have the write speed. Be careful

My old 133x Lexar memorycard says a write speed of 30MB/s but their new 400x cards only have a write speed of 10MB/s

10
Raw Video / Re: 550D raw video recording port official thread
« on: August 26, 2013, 11:52:35 PM »
I`ve been folowing this thread for for a while now...has our beloved 550d finally hit a wall? What is the current best thing you can do with it?
I film alot of skateboarding so 14fps raw is unfortunatly not an option for me. Dual ISO...this I`ve seen for the first time today. Does it help with anything but exposure? I guess it can be very usefull for me when a rider is riding inbetween shade an sun. Anything else?
Time to get the 50D?

If you film 960x540 you can blow it up to 720 with no issue, and you can still blow it up to 1080 and it looks fine. You need a fast enough card to actually reach that resolution (over 30MB/s write, otherwise you are trying to push the card to the max and it gets unstable)

11
Raw Video / Re: What is Better 1080p or Raw 720p 550d?
« on: August 26, 2013, 07:51:11 PM »
I just did some test recently actually and, without a doubt, 960x540 upscaled to 720 looks better than 1080P

12
Blainesuque: They are proxy's, designed to be easy to edit with which you then link up with your DNG's later.

To the developers of this: Incredible! I would love a back button in the GUI in case you go to the wrong folder (I need to literally quit the ap and then go back in) I was wondering: Would it be possible for this app to automatically de-squeeze something if it is shot in 720P mode? (like 1280x388?)

13
Raw Video / Re: RAW video and super 16mm glass?
« on: August 26, 2013, 06:29:56 AM »
Let's see...

Super16mm is 11.66mmX6.15MM which is... 71.709mm of area

an APS-C sensor is 22.3mmX14.9MM which is... 332.27mm of area

71.709 * X = 332.27mm X is the crop factor

332.27/71.709=4.63

1920/2.32 = 827.59
1280/2.32 = 551.72

So, for almost to no vignetting, we need to shoot at ~828X552 resolution.

In other words: Not very much. (Granted, this can probably be blown up to 720P without too much issue) Crop Mode MAY work but I'm not sure what the math behind that would be, ha ha.

14
Raw Video / RAW video and super 16mm glass?
« on: August 26, 2013, 03:15:55 AM »
So, I was wondering, whether it with crop-mode or with simply shooting at a resolution like 1280 or lower: Would it be possible to shoot using super 16mm glass? I know that PL-EOS adapters exist, and with RAW we can choose a specific resolution on the sensor so... Stands to reason that by croping down to 720 from 1080 (Or using crop mode and using a lower-ish resolution) we should be able to use super 16mm glass on, if not the 5D, something like the 50D

15
Raw Video / Re: 550D raw video recording port official thread
« on: August 26, 2013, 03:07:30 AM »
but certain situations would make it a must have feature.

Hit the nail on the head, my friend :)

16
Raw Video / Re: 550D raw video recording port official thread
« on: August 26, 2013, 01:54:18 AM »
Did some tests with Dual ISO. due to the lower resolution it is ugly as Sin and not really worth it.

http://imgur.com/a/fFzox are some sample stills. These were NOT graded to look pretty, but rather designed to draw out as much detail as possible

17
Raw Video Postprocessing / Re: RAW Video Post processing [Mac/Win/Linux]
« on: August 25, 2013, 09:28:34 PM »
Will the GUI work with DualISO?

18
Raw Video / Re: Current raw video capabilities - All ML cameras
« on: August 22, 2013, 09:20:46 PM »
How can you get more pixels. 960x540 gives you 21,760 more pixels than 1280x388. With the anamorphic lens are you not just getting a stretched pixel making you think that there are two pixels.  I think the sd card controller can only handle 518,400 pixels at maximum frame rate.

did a small test to see how much this matters

http://imgur.com/a/O8Cp9

Long story short: Very little when not shooting with anamorphic lenses

19
Raw Video / Re: Current raw video capabilities - All ML cameras
« on: August 22, 2013, 05:14:25 PM »
David, this sounds interesting! How would 1280x388 change, as far as resizing in post, if I use my 1.33 anamorphic lens (Panasonic LA 7200)? 

I should note that the actual resolution ends up being 1280X581 after you stretch it from the original 1280X388

And BrotherD I have absolutely no idea, I've never used anamorphic lenses and, therefore, have little real world knowledge on them

is a link to a short, not great, comparison video I did (I tried to account for the crop with a zoom lens and I did my math wrong, which is why some of the FOV are so different.)

From the video description:

"This is a comparison of the MAgic Lantern RAW capabilities on the Canon T2i. shooting at a resolution of 1280X388 (Stretched to 1280X581) which is far more than the 'official' spec of 960X540

Some of these are flipped due to the framing I had made it difficult to see the difference.

Some of the shots are not identical as I changed focal lengths to try and account for the crop that happens when filming RAW like this and, frankly, did my math wrong.

I tried my best to keep the framings similar but.. It didn't work. Each comparison was shot on the same lens, either with a zoom or by moving around with a Prime."

20
Raw Video / Re: 550D raw video recording port official thread
« on: August 19, 2013, 06:07:44 PM »
No offense but this comparison video seems quite pointless ;D

I mean, it is supposed to show ... what exactly? In this test, it looks like the squished 1280 X 388 RAW videos would be better than regular 1920 X 1080 H.264 videos in terms of sharpness and detail. And that's just not the the case. Why did you downscale the H.264 footage? And why did you bulred it so hard? Why is the field of view so different in many shots? Did you crop the video, or did you actually changed the focal length?

I don't want to say that the comparison is horrible. But you should tell us exactly what we are seeing and what it is supposed to show.
That would make the video more interesting and helpfull.

By the way, if you film in the squished 720p mode, be carefull. It can give way worse aliasing than the unquished modes.
I would use it only if I needed a really shallow depth of field.

I downrezzed the 1080, mainly, to give it a bit of a chance. It looked horrendous when kept at 100% and, for web delivery, 720P is very common, so I decided that a downres would make the most sense.

I was filming in the squished 720P, there IS more aliasing/moire, but it is something I can definitely deal with for the extra detail in everything else. (Reolution baby!)

Some of the shots are not identical as I changed focal lengths to try and account for the crop that happens when filming RAW like this and, frankly, did my math wrong. (This is brought up in the youtube video description ;) ) Oops?

The 720P mode needs much less data, so you can get more resolution out of it, compared to 1080P which limits you to near standard-def.

 

21
Raw Video / Re: 550D raw video recording port official thread
« on: August 19, 2013, 02:56:19 PM »
Here is some RAW video tests I threw togethe to show off the higher resolution you can get (Higher than the 'official' spec at least) with continuous recording:


not perfect (Far from it), but it should give you an idea.

Here is how it worked:

1: Have a very past card. at least 133X.
2: go to 720P mode
3: turn on FPS override and set it to 23.98
4: start at a low resolution (like 960X540)
5: work your way UP to 1280 at 2/35 (1280X388)
6: Boom! continuous recording at 1280X581!

EDIT: Very important note: This dies not need to be done for each clip, only when you first insert the card (Or if it crashes).

I don't know if this needs to be done with each, individual, card, since I only have one card that can handle the data loads ha ha

22
Raw Video / Re: 550D raw video recording port official thread
« on: August 18, 2013, 08:14:51 AM »
Anyone with a 550D able to find the correct addresses for Dual Iso so we can test it out, I will compile it if needed, but we need someone that  knows how to find the addresses we need. If it works on the 600D you would think we can get it going too!

These are the addresses it looks like we need to find. These lines are from 1% 600D code but I have no clue how to find the addresses 8[ I only know how to mess with the code and compile it.
        FRAME_CMOS_ISO_START = 0x406957C8; // CMOS register 0000 - for LiveView, ISO 100 (check in movie mode, not photo!)
        PHOTO_CMOS_ISO_START = 0x4069464C; // CMOS register 0000 - for photo mode, ISO 100

Shouldn't you be able to simply use CTRL/CMD + F?

also, I've been playing with RAW and, though the 'official' spec is 960X540, I'm currently playing with footage that was shot at 1280X344. Still messing with parameters so either tomorrow or Monday I should have some footage/a tutorial

23
Raw Video / Re: Current raw video capabilities - All ML cameras
« on: August 18, 2013, 07:28:49 AM »
Hey, so looking at the google Doc and my own tests I learned something:
By setting the resolution to 720P 60FPS, and using the FPS Override to 23.976 we can shoot at a whopping 1280X388 (2.35:1) on the 550D instead of the 'official' 960X540
holy. shit.

It seems that you need to 'warm up' the card a bit to do this, but I will do some more tests and get some sample footage out for you all by monday(ish) MAYBE tomorrow.

Pages: [1]