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"Green Cat Returns"? Any chance to keep offtopic discussion offtopic?

I'm using Auto ETTR on 50D. This build (https://bitbucket.org/andy600/tl50d/downloads/Tragic.Lantern-2.0-Andy600.Build.2013Aug27.50D109.zip), based on Tragic Lantern 2.0, makes it possible to use Auto Snap feature and does not require entering LV mode. Normal nightly builds (checked yesterday) won't do it.

1. What is different between these builds? I see Tragic Lantern is merged into nightlies from time to time (later than the mentioned build anyway).
2. Quite often I see "exposure out of range" (or similar) message. A1ex mentioned that it's possible to use Auto-ETTR in very low light conditions (cave - http://www.magiclantern.fm/forum/index.php?topic=6554.msg59368#msg59368) outside LV. What else is needed to get 50D to work in larger range? It is larger than old builds now, but still I can't use it in low light (not to mention caves) or in bright scenes.

I've tried today's nightly and some modules don't work, my favorite ettr autosnap doesn't work (BTW, is the EV range increase for ETTR possible in 50D? It still doesn't work for very bright or dark scenes — even in photo mode). New menu is not present, etc. I'll stick with Tragic Lantern builds then

As I see nightly builds for 50D were merged with Tragic Lantern some days ago, and include raw_rec.mo, dualiso.mo and ettr.mo, is the compilation by Andy600 any different than nightlies now?

True, so not viable for normal cinema use (big and bulky tripods, optical stabilizers, and great spaces, not viable for indoor use, and so on)

But this is exactly what I'm using raw video for. Low tripod, gimball head, tele lens and x3 magnification in camera — very nice for birds. Video is especially useful for identifying uncommon birds, rarities. Furthermore, even when I don't have tele lens with me, I use my kit 17-55/2.8 lens with magnification and it's enough for documentary. Some additional ML features are great for birding too.

[The latest Tragic Lantern 2.0 for the 50D is up:]

The latest Tragic Lantern 2.0 for the 50D is up: https://bitbucket.org/andy600/tl50d/downloads/Tragic.Lantern-2.0-Andy600.Build.2013Aug27.50D109.zip

Includes several important fixes.

Raw exposure meters now work in photo mode 

ETTR and Dual ISO have some new settings to play with.

There is a NEW 'Modified' menu (nice)

Does it mean ETTR works in photo mode or has wider range in LV now? I can't check myself as I'm abroad without computer — some heavy use of Dual ISO and Auto Expose here

Im getting same problem, DualIso name stays, iv also noticed when you have the option to shoot one normal one dual sometimes it will take either two normal and two dual iso missing the normal/dual iso and replacing it with vice versa, anyone else had that?

I'm having same problems with DUAL (_UAL for AdobeRGB) file names. As for one normal/one dual shots, I've noticed it does not work for continuous shots. Probably you took double photos, then stopped, then double again. Each of those doubles will be the same type, so in this case it will be 2 normals and two duals for instance. And probably all named dual...

Does anyone know the best way to expose with dual ISO in the daytime? Specifically I mean: under or over? The photo seems way brighter after taking the shot than in LV. Am I going to get better highlight or shadow recovery? I'm going to do a shoot tomorrow and I won't have time to read/experiment and figure this out beforehand.

Select ISO 100 and set ISO 100/1600 in Dual ISO settings. Expose to get highlights properly (not cut). Best would be exposing to the right. 1600 ISO will take care of shadows.
Most often setting EV-2 in Av while taking a shot works fine.

I did not check 1600/100 method though, but I think proper exposure will be trickier (you won't be sure if highlights are ok). Also 200/800 might get much less noise if the dynamic range is not too great.

I used ISO 100 and 1600 with the latest cr2hdr for Windows. They converted beautifully for me.

I've checked again with latest build and latest cr2hdr compiled by Andy600. It looks like "extreme" cases (with blown highlights) are still converted wrong by it (green), but otherwise it's a huge improvement (most photos are nice).

Example of wrong processing:
https://mega.co.nz/#!lMUQ1Syb!bUPbAzlUBwnqWgjGER5eyGBbZ3JptHNwzZKRlXJsgkE (CR2)
https://mega.co.nz/#!IFtzGYqB!fEk-PEU91rsOyq6bGxSwYA9_IOJUFLRaTpbMKgl7lnY (DNG)

Attended a wedding and tested the duel iso for my 50D. Some beautiful dynamic range.



When nighttime hit, I tried to see if I could do something like 800/12800 but even though it was selected, it still defaulted back to 800/1600. Maybe a bug? (I know it would be incredi-noise, but I just wanted to see how bad it would be).

Hi. What ISOs and converters did you use for this shot? I've just checked with latest tragic lanter build and latest cr2hdr (for windows) from first post here and still get greenish shadows.

I've noticed green cast in shadows and highlights after converting dual iso cr2 into dgn on Canon 50D.

Normal case:


without Dual ISO:


Extreme case:
cr2hdr.exe:

cr2hdr_exp.exe:


Is there some trick to remove green cast in ACR (in normal, not "extreme" cases at least)? Split toning won't do the trick. Setting WB sets it either for highlights and shadows or for middle parts.

Latest Tragic Lantern 2.0 build is up: https://bitbucket.org/andy600/tl50d/downloads

Includes @Pravdomil's new Auto Exposure module (photo mode only), Crazy Colors which helps setting WB, Raw spot meter and a bunch of tweaks and fixes.

Auto Exposure is great! I can't find what "Crazy Colors" is though. I've searched through commits on bitbucket and browsed options in camera, but couldn't find it

Here, the first post of akumiszcza --> http://www.magiclantern.fm/forum/index.php?topic=6554.100
says that only some minutes of fullhd are possible (in fact, on screen we can see max 3420 frames calculated).

Then, some more posts down, Watson says he manage to record 1080p continuous (no time/frames limitations).

So, what is the truth ? And 1080p continuous (if it exists on 50D) is 30fps or 24fps ?

Many thanks in advance for any replies ! 

See this post: http://www.magiclantern.fm/forum/index.php?topic=5586.msg60536#msg60536

Max is [email protected] continuous AFAIK. Number of frames recorded at real 1080p vary a lot, but it's not continuous yet I think.

Hey Rommex, are you using Raw2CDNG on a PC? It doesn't seem to be working for me, ver.1.2.1. I joined a split file and now have 4.95GB file I load into RAW2CDNG, but I get an error "RAW2CDNG has stopped working" every time. RAW2CDNG also is showing under Resolution: 4385 and FPS: 555512.80. Basically weird numbers.

Did you read my post a few posts after Rommex'es post? Maybe it will work for you: http://www.magiclantern.fm/forum/index.php?topic=5586.msg61023#msg61023

It's on the front page of EOSHD.com

It's very well done

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

[File Splitter & Joiner]

Try using Raw2CDNG. It does work with files longer than 4GB.

You first rename split files (so that they have extensions .001, .002, etc) and then use the free program File Splitter & Joiner to join them.

Then you feed the resulting files to Raw2CDNG -- it should work. It worked for me.

You don't need to join them before dropping to raw2cdng. Just get .raw, .r00 etc. and drop everything to newest raw2cdng. It will join and convert them itself.

I have a question what's up with the ETTR mode seems that everytime it is on the shutter speeds get's all screwed-up and you can't fix it until you turn the camera off.

I think it's this problem (exposure limits of LiveView): http://www.magiclantern.fm/forum/index.php?topic=6554.msg59013#msg59013 - see explanation by a1ex.

In an old post:

[...]
By the way, I'm using the Komputer Bay 1000x 32gig and I'm experiencing continuous recording in 5X mode, 1080p.
[...]

New post:

Right now, I'm recording 2000x835 in the 2.39:1 aspect ratio. I'm not sure what my MB/s is - all I know is I can basically record more than what I need. The 32gig goes quick though.

Using the July 10th Nightly Build. Shutter 1/48th. 24fps. Raw recorded in the 2.39:1 ratio - global draw turned off, with the ML Grayscale for the live-view during recording, and between ISO -100 through 1600. Hacked settings turned on.

So, are you really experiencing continuous recording in 1080p? This means 1920x1080 (16:9 aspect ratio). I was really trying all options and can't do that on 32gig 1000x Komputerbay card. About 2000 frames max.

Continuous means the buffer is not increasing during filming, you can see it on the screen. And after a while you see "continuous OK" or similar.

I too am getting IS to work when half-pressing the shutter button during recording... Wonder if it can be implemented without pressing shutter?

There is an option for that in ML menu, but it doesn't work. So it's probably not implemented on 50D yet.

mjstudio, it's a known issue. Raw recording is done while Live View is idle (at least on the canon firmware side). When it's not taking a picture or a video, IS is off to preserve battery life.
I guess they'll fix it in the future.

I was recording raw video with IS working on my 17-55/2.8 at least (I think I didn't check other lenses). All I had to do was keeping shutter half-pressed during recording.

[...]
But once I overlooked the size of a clip and it got split into 2 parts.
I remember that some 20-30 pages back someone was explaining how to stitch them with some hex editor.... If anyone can help to find that spot, I'll be gratefull. Search on the forum didn't help (

http://www.magiclantern.fm/forum/index.php?topic=5654.msg39968#msg39968 et al.

I finally got little bit of time to try out my 50d (just to make sure I hadn't bought a dud). I'm trying to work out what data rate I shot. My .RAW file is 215.2 MB and i shot 87 frames what is the data rate? My math puts that at 74MB/s but I shot it on a 133x card that came with the camera, am I missing something? I'm using 11th July unified.

It depends on your frame rate. For 30 fps it's 74 MB/s, for 24 fps it's 59 MB/s I think. But, the camera has internal memory and can handle some frames before writing them on the card. So you can have some seconds of high resolution video even on a slow card. If your card was fast enough, the video recording would be continuous.

You have reached the exposure limits of LiveView.

The problem is that I don't know exactly how to find them for each camera.

Sorry for noob questions, but does this mean it will never be possible to use auto-ETTR in low light? Or maybe during finding the proper exposure it goes through "impossible settings" for a moment and the whole process breaks? Can it be avoided if these "exposure limits" are found?

I'm a photographer, not a videomaker, and this feature will be much more important than occasional videos.

[magic.cfg]

The issue with auto-ETTR still appears in latest July 11 build. I've noticed that it appears almost only on dark or very dark scenes and in M mode, both LV and photo mode.

Here's what it looks like:

As you can see, the exposition was quite OK at ¹/₅₀ s, ^f/_2.8, ISO 800. After turning on Auto-ETTR by pressing SET the camer set it to 30 s, ^f/_2.8, ISO 1600 which would overexpose the whole frame.

Here are the settings:
magic.cfg
# Magic Lantern 2013Jul11.50D.109.go.unified.5db91070a1aa (5db91070a1aa (unified) tip)
# Built on 2013-07-11 16:42:39 by [email protected]
# Configuration saved on 2013/07/13 09:32:23
beta.warn = 13
menu.first = -2
movie.log = 1
fps.preset = 1
fps.override.idx = 32
fps.override = 1
post.deflicker.sidecar = 0
spotmeter.draw = 0
waveform.draw = 0
zebra.draw = 0
disp.mode.x = 133
module.autoload = 1

ettr.cfg
# Config file for module ettr (ETTR.MO)

auto.ettr = 1

raw_rec.cfg
# Config file for module raw_rec (RAW_REC.MO)

raw.video.enabled = 1
raw.res.x = 14
raw.aspect.ratio = 14
raw.write.speed = 7577
raw.small.hacks = 1
raw.warm.up = 4

Why 40D in chart has exFAT and 50D doesn't?