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 Magic Lantern ETTR Timelapse 
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Post Magic Lantern ETTR Timelapse
Magic Lantern's ETTR (Expose To The Right) feature adds auto exposure evaluation based on measurements from the RAW histogram of the previous exposure. It uses manual exposure increments (shutter and ISO), combined with deflicker/smoothing calculated from the same RAW image data, to produce surprisingly smooth results when used for timelapse, even when ramping a large amount.

Read more on their forum:-http://www.magiclantern.fm/forum/index.php?topic=5705.0

I'm very impressed! The two shots below were produced this way and have had nothing done to smooth them, bar the ML deflicker. They do have a bit of a 'look' to them, perhaps partially due to the current slow processing on the 5D2, and thus small effective shutter angles in all the ETTR shots I've seen. The parameters are not hugely intuitive (who knows what percentage of pixels its usually ok to let clip?) but I'm learning fast. This is now my first choice ramping solution. Even though it's still very alpha, it's much more reliable than any bulb solution on my camera.

But it's a new system, with a new set of pitfalls and hazards, so I thought it worth starting a discussion thread. I'd be very interested to know if anyone else on here is trying it out? How you're getting on with post production? I'm having to learn how to use exiftool to process my RAWs without loosing the ML deflicker. Anyone any idea whats causing the distinctive 'look'?




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Fri Jul 26, 2013 11:42 am
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Post Re: Magic Lantern ETTR Timelapse
Looks very nice! Have installed ML on my 6D yesterday (but did not yet have a chance to try it out really) and will certainly have a look at this.

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Tue Jul 30, 2013 12:59 am
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Post Re: Magic Lantern ETTR Timelapse
Here's another example, this time coping admirably with some very changeable conditions.


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Fri Aug 02, 2013 3:31 am
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Post Re: Magic Lantern ETTR Timelapse
Very impressive!!

I tried the ETTR feature last night with - as far as I can tell so far - quite some success. I was shooting from after sunset to darkness.

However, I've had some problems with the Magic Lantern intervalometer in the last couple days. After about a hundred shots, it did not continues to shoot. Battery was almost full, there was more than enough space on the SD card, the temperatures weren't very hot or cold. Has anyone experienced this as well?

I'm using the last version of ML for the 6D (I know it's not an officially stable release yet).

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Fri Aug 02, 2013 1:08 pm
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Post Re: Magic Lantern ETTR Timelapse
I tried to communicate with the developers of magic lantern a long time ago about the Timelapse features but to no avail. I have since done other projects and not been active for a long time.

I am surprised ML only uses the information from the previous exposure to set the new exposure settings, this approach seems very prone to flicker or other artifacts. Why haven't a simple exponential moving average of the exposure value/exposure error been implemented which would consider all previous shots and not just the last one (correct me if this has been implemented). This does not require any calibration or other inconvenient steps!

This is similar to how a normal video-camera is adjusting for exposure, and you get the typical delayed response from the camera to fast changing light levels. Which is desirable by many since a constant light level in the final timelapse looks very dull, you want the timelapse to become underexposed when the sun goes down, and then after some time the camera/eye "adapts" for this and you start seeing stars etc.


Fri Aug 02, 2013 2:33 pm
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Post Re: Magic Lantern ETTR Timelapse
I've found the ML intervelometer very reliable on a 5D2. I had the odd dropped frame in the early days of ETTR, but that problem seems to have gone away. Does this happen consistently or just sometimes?

I often find I need to offset the exposure gain over the whole shot, say reduce all frames by 1 stop without loosing the ML deflicker. You can do this with exiftool. On Mac OSX go to the terminal and run the command below. Should work on Windows and Linux too. Exiftool is free to download and is installed by various photo tools, so you may already have it.

exiftool -Exposure2012+=-1 /path/to/ETTR-sequence-folder

The ETTR module that controls the cameras exposure settings will always aim to get the exposure as close to the target (by default -0.5EV on the raw histogram) as possible, without clipping any more pixels than the limit you set (by default 0.2%). Avoiding clipping is obviously vital if you are to be able to smooth shutter/ISO increments with post deflicker. This is as far as I know based just on the previous exposure, but it may look further back, I don't know.

As to how the deflicker module works that is a question for the developers, but there is only a few of them and their forum is very busy these day. I'm guessing it is doing something not dissimilar to what you suggest, but that is only a guess. Obviously the code is all open source. So if you want to know how it works you can inspect the actual nuts and bolts. This is beyond me though.

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Sat Aug 03, 2013 3:15 am
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Post Re: Magic Lantern ETTR Timelapse
light and time wrote:

The ETTR module that controls the cameras exposure settings will always aim to get the exposure as close to the target (by default -0.5EV on the raw histogram) as possible, without clipping any more pixels than the limit you set (by default 0.2%). Avoiding clipping is obviously vital if you are to be able to smooth shutter/ISO increments with post deflicker. This is as far as I know based just on the previous exposure. Is looking further back really going to help in this context?

As to how the deflicker module works that is a question for the developers, but there is only a few of them and their forum is very busy these day. I'm guessing it is doing something not dissimilar to what you suggest, but that is only a guess. Obviously the code is all open source. So if you want to know how it works you can inspect the actual nuts and bolts. This is beyond me though.


I think the idea of the ETTR is to get optimal dynamic range and perfect exposure every time, which is very useful in some cases.

My idea was just to mimic the auto-exposure from a normal video camera (but much much slower since it is a timelapse), hence you get changes in the apparent exposure dynamically as the sun goes down for example. This results in a much more dynamic video/timelapse. A video where every frame is perfectly exposed has a certain "look" to it, and you never get the impression that the real world light levels have changed at all.

Isn't the purpose of a timelapse to mimic how the eye or a camera would see something if time went much faster?


Sat Aug 03, 2013 4:29 am
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Post Re: Magic Lantern ETTR Timelapse
I see what you mean. It would be great to be able to 'damp' changes, say so the camera lets things get a bit darker as night falls, without loosing the exposure completely. A few people have posed a similar question on the ML forums, myself included. The answer seems to be, and again this is only my reading of it, that doing this would also allow clipping if the ambient brightness climbed, and thus break the whole system.

You can, I believe, combine ETTR with manual ramping, in which case the manual ramping will be applied to the ETTR target. I've not tried this yet though so I can't say if it works or not, or how well it plays with the deflicker system.

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Sat Aug 03, 2013 4:57 am
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Post Re: Magic Lantern ETTR Timelapse
That first shot is very smooth, no noticeable flicker at all. I'm very impressed! Bulb ramping is gradually getting easier and easier these days :

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Tue Aug 06, 2013 12:43 pm
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Post Re: Magic Lantern ETTR Timelapse
Wow... nice. What build of ML are you using on your 5D MKII?

Jon


Wed Sep 18, 2013 10:25 pm
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Post Re: Magic Lantern ETTR Timelapse
Ah, hi Jon. I think we spoke over email but...

For the record, I'm having stability problems with the latest versions of ML. For ETTR on the 5D2 I find the 21st July build pretty stable.

When it works it is pretty impressive. The shot below is pretty challenging and is handled with few problems. I am having to re-learn post production though. Writing shell scripts to process footage, I ask you?


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Tue Sep 24, 2013 6:01 am
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Post Re: Magic Lantern ETTR Timelapse
Magic Lantern ETTR What do you settings use timelapse ?

thankyou


Wed Nov 06, 2013 1:04 pm
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Post Re: Magic Lantern ETTR Timelapse
light and time wrote:
Ah, hi Jon. I think we spoke over email but...

For the record, I'm having stability problems with the latest versions of ML. For ETTR on the 5D2 I find the 21st July build pretty stable.

When it works it is pretty impressive. The shot below is pretty challenging and is handled with few problems. I am having to re-learn post production though. Writing shell scripts to process footage, I ask you?



I haven't downloaded ML yet because I always hear about glitches and problems. The timelapses look pretty good, even exposures and such. But i have yet to see an example of a holy grail bulb ramp, where you go from bright daytime in total darkness with stars, maybe even the milky way. Is it capable of ISO ramping and Interval stepping?

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Tue Dec 03, 2013 11:16 pm
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Post Re: Magic Lantern ETTR Timelapse
What do you guys do with footage shot with ML ETTR in LRTimelapse?

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Wed Dec 04, 2013 12:18 am
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Post Re: Magic Lantern ETTR Timelapse
@Kmotion
If you wait for Magic Lantern to be glitch free you'll probably wait forever. You're still running Canon firmware, ML runs along side, and it runs from a card, if you put a card with no ML on it in, the camera behaves as normal. The only thing you actually change on the camera is a boot flag that makes it run what's on the card, if there is anything.
The weather hasn't played nice when I've tried day-to-night, but the exposures have looked pretty good. It'll ramp shutter (though not bulb mode) and ISO. Interval stepping is not implemented as a setting, but if the exposure time + processing time exceeds the interval, it should automatically increase the interval. However, this was crashing my camera so I've avoided it recently.

@fabians.ch
We don't, we use exiftool to offset or ramp exposure and do the rest in Lightroom and After Effects. I think there was a guy on the Magic Lantern forum who had got stuff into LRTimelapse via DNGs, preserving ML deflicker, which is better than LRT deflicker. The thread is linked at the top of this one, and it also has details of the exiftool method and a bunch of ramping scripts.

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Tue Dec 10, 2013 9:52 am
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Post Re: Magic Lantern ETTR Timelapse
Thanks, I'll have a look...

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Tue Dec 10, 2013 12:05 pm
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Post Re: Magic Lantern ETTR Timelapse
So, I've read up a bit on that topic. Just to clarify, I guess you do the steps with exiftool before any other corrections or editing in LR, AE or any other software?!
I will give it a try later today if I will find some free time..

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Sun Dec 15, 2013 2:40 am
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Post Re: Magic Lantern ETTR Timelapse
By steps do you mean the third stop jumps when ETTR changes the cameras exposure settings? If so the ML deflicker module takes care of these, and does a very good job of it too. The xmp files generated in-camera contain this correction data. exiftool is useful to adjust the exposure in post without loosing this deflicker. It can add/subtract from the existing values.

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Sun Dec 15, 2013 3:44 am
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Post Re: Magic Lantern ETTR Timelapse
Ah sorry, no, I just mean the working steps.

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Sun Dec 15, 2013 2:25 pm
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Post Re: Magic Lantern ETTR Timelapse
Ah yes, sorry. I usually go into Lightroom first, get a basic grade done (including working out any changes I want to make to the exposure setting, without actually applying these). I'll then paste this grade across all frames (omitting exposure in the copy settings dialogue) and save these settings to xmp. Then I'll use exiftool to apply the exposure adjustments and do any ramping required. Then I load these settings back into LR to see how they look (and tweak if required) before going into AE to retouch and render.

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Mon Dec 16, 2013 1:24 am
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Post Re: Magic Lantern ETTR Timelapse
Thanks, that helps!

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Mon Dec 16, 2013 1:54 am
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Post Re: Magic Lantern ETTR Timelapse
I have a bunch of RAW sequences shot with ETTR but without ML post deflicker. Are they worth anything at all? They have really heavy "ETTR flicker"...

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Mon Dec 16, 2013 9:25 am
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Post Re: Magic Lantern ETTR Timelapse
You should be able to handle these using LRTimelapse:- http://lrtimelapse.com/tutorial/
Or one of the ML boys has written a script for Bridge:- http://www.magiclantern.fm/forum/index. ... 4#msg83394

As I understand it, these both use gamma corrected previews to calculate the deflicker, so may not be quite as accurate as the in-camera algorithm, which uses the raw linear data.

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Tue Dec 24, 2013 1:24 am
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Post Re: Magic Lantern ETTR Timelapse
Thanks for the links, I have not seen the Bridge script one yet.
I tried like ten times with LRT and finally got some useable, not perfect, results with first deflickering in LRT and then once more with the GBDeflicker plugin for AE.
I will have a look at the Bridge script for sure though.

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Tue Dec 24, 2013 2:27 am
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Post Re: Magic Lantern ETTR Timelapse
@fabians.ch
How did you get on with the Bridge script? I must have a look at that.

@Kmotion
Here's a night-to-day shot that I'm not very happy with but it does show what's possible. This is a 15 stop ramp from 4 secs @ 1600 ISO to 1/8000 sec @ 100 ISO. Not quite stars at the beginning, I got up a bit late, but there is a few visible, and by cranking up to 30 secs at the beginning you've got almost 3 stops more range. Admittedly the very short daytime exposures give it a quite stuttered look, especially with a tidal subject like this one. But 18 stops of auto ramping with no extra hardware, and software that's free, can't be bad...


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Sun Jan 05, 2014 4:58 am
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Post Re: Magic Lantern ETTR Timelapse
The script worked quite well for me. The only thing I don't like about it, is that it's in Bridge. My workflow does not include Bridge, I do everything in LR etc. and would prefer to keep it like this. To save some shots though, I don't hesitate to switch to Bridge from time to time, of course (but I'd love something similar for LR).

The footage I was trying it with resulted in this short video. This is before running the script (since I didn't get around to do all this before finishing the clip), "ramped" with the holy grail method of LRT and deflickered using LRT and GBD. The scenes I had most problems with were the ones starting at 00:23, 00:40 and (most of all) 01:04. So I'm still fine with the results without the script.


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Sun Jan 05, 2014 6:54 am
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Post Re: Magic Lantern ETTR Timelapse
Nice one, that's turned out well mate. Pretty part of the world too. And the script did a better job than this? I feel the same about Bridge, that's why I haven't tried it. I will have to take a look at it though.

This might be a tad off topic, but I've been trying out MLs raw video crop mode, with some useful results, though it's a bit limited on the 5D2. For the timelapse shooter with a 5D3, this could be a great way to capture faster timelapses/undercranking. You can apparently capture 3584x1320px raw from a crop not much narrower than APS-C, without destroying your shutter. Not sure what the 6D will do, but probably better than the 5D2 (which will only manage 2152x1076).

It's not really that usable on the 5D2. But it could be a useful trick, and possible a reason to pick up a second hand mark 3 if the opportunity arrises.


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Sun Jan 05, 2014 11:35 am
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Post Re: Magic Lantern ETTR Timelapse
I actually had quite a hard time telling the difference in the end, but I think the one with the script was slightly better. I will probably use it, if something I can't fix without it comes up.

I've been curious about ML's RAW video too, but haven't really gotten into trying it out really. Should be an interesting feature though.. That footage of yours looks really nice.

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Sun Jan 05, 2014 1:53 pm
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Post Re: Magic Lantern ETTR Timelapse
The raw video is undoubtably very cool. The tones are glorious compared to the standard video, and you get better dynamic range (as you'd expect). But it has a lot of problems. Perhaps too many?

In full frame mode it's pixel binning (to get down to 1920x1080-ish) as well as recording well below the cut off of the DSLRs anti-aliasing filter, so it's sharp as hell but you've got aliasing and moiré like you wouldn't believe. In some shots it looks glorious, but in most aliasing ruins everything. Shows how much processing Canon have had to do in-camera to get aliasing down in the standard video, no wonder it's so mushy.

In crop mode you capture a 1:1 crop from the centre of the sensor (how big you can go depends on camera and card speeds). This gets around aliasing but noise, chromatic aberrations and lens resolution become much more significant. With a 5D2 footage shot this way is a little gritty, which has it's uses but I doubt it's to everyones taste. With the 5D3 you can up the res to 2.5k (3.5k for timelapse), which may make all the difference.

So a useful trick on my 5D2, but one with lots of pitfalls. You'll get better results on a 6D. But with SD cards, write speed will be an issue. On a 5D3, it may just be usable..?

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Mon Jan 06, 2014 5:15 am
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Post Re: Magic Lantern ETTR Timelapse
Thanks for the details.. I'd heard that on a 5D3 it should be pretty great..

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Mon Jan 06, 2014 9:11 am
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Post Re: Magic Lantern ETTR Timelapse
I've been messing around with ML again. ETTR has had some upgrades. Now as well as a clipping limit you can also set mid tone and shadow noise limits. The three interact to determine exposure. Pretty effective. You can also combine ETTR with DualISO to get increased dynamic range, but in my experiments the aliasing this introduces is unacceptable. This one turned out though, using the latest build but no dualiso. The deflicker module did malfunction somewhat, but it was repairable with exiftool and a bit of patience.


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Thu Apr 10, 2014 7:34 am
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Post Re: Magic Lantern ETTR Timelapse
Sounds and looks very nice!

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Mon Apr 14, 2014 2:18 am
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Post Re: Magic Lantern ETTR Timelapse


Still trying to get a sun to stars shot I'm happy with. This aint really it. Works technically but spoilt by a hidden bank of cloud on the horizon (as sunsets on the Dee often are) and by the wind getting up around high tide (which it often does).

It was nearly a full moon, so not the best night to get stars, but the foreground is nicely lit instead. Starting with a 1/8000 sec exposure at f5.6 ISO 100, and ramping to 10 secs at f3.2 ISO 1600. With ML taking care of shutter and ISO, as well as deflicker. Aperture ramped by hand on a manual lens, which ML deflicker smooths out nicely. Ramping in post done using David Milligan's script for Adobe Bridge.

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Sun Jun 15, 2014 7:27 am
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Post Re: Magic Lantern ETTR Timelapse
Light and time. I'm really new to making timelapses with ML. Can you teach me how to make beautiful timelapses like yours. This is what I usually do to make timelapses.

First I set my ISO to 100 and my aperture to f11. Then I set me shutter speed based on how fast things are moving in my frame. If I'm shooting fast moving clouds, people, or cars, I want to ensure that there is enough motion blur to avoid the staccato effect and to get a smooth end result. So I typically set my shuttet speed to 1/8 or 1/16 in these instances. Then I set my ML intervalometer to 2 or 3 seconds and let it start shooting.

I get good results but is my method of shooting timelapses correct?

Also, I've been really inspired by your timelapses and I was wondering whether you can teach me about autoETTR and all the other ML modules to achieve awesome timelapses like yours.

I've been doing a lot of reading and research, but I'm really confused about ML autoETTR. I know that the teigger mode should be "always on" for timelapses. But I'm not sure what the other parameters do and how I need to set them.

I'm really hooked on timelapses and I'm trying to learn as much as I can on my own. But I'm stuck and hope you can help. I would be willing to skype, email, or talk on the phone to learn and ask you questions too. I just need someone to help me.


Sun Aug 31, 2014 3:22 pm
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Post Re: Magic Lantern ETTR Timelapse
All information about how to use ETTR is provided in the link in the first post - it even goes step-by-step.

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Sun Aug 31, 2014 4:34 pm
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Post Re: Magic Lantern ETTR Timelapse
Yes, I know that. Like I said, I read all the threads and they're confusing. I'm looking for someone that can teach me without all the technical jargon.


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Post Re: Magic Lantern ETTR Timelapse
I read the thread: http://www.magiclantern.fm/forum/index.php?topic=5705.0. I also read this thread: http://www.magiclantern.fm/forum/index.php?topic=5693.0, as well as a number of other threads about ETTR. But after reading these threads, I was even more confused. I think it's because of my lack of understanding of how the camera's sensor works and the technical details of photography. I really want to learn and strive to be an expert in timelapse photography, so please help me achieve this goal.

Just to give you an idea of how I shoot my regular timelapses (i.e., not sunset/sunrise timelapses). First, I set my ISO to 100 for daytime timelapses. Then I set my shutter speed to what I believe will give me the right amount of motion blur so that the final timelapse is not too choppy or have a staccato effect. I take a test picture and see how much motion blur is in the picture. If I'm happy with the amount of motion blur, I set the ML intervalometer to a certain interval based on how fast the subject(s) are moving in the frame. For fast moving clouds, cars, or people, I typically set the intervalometer to 2-3 seconds. For slower moving subjects, I set the intervalometer to 4-6 seconds. The outcome of my timelapse is typically a smooth clip, with little to no staccato effect.

Now I'm trying to learn how to shoot sunset/sunrise timelapses; the holy grail of all timelapses. I have some options to achieve this. I can follow Gunther's instructions from LRTimelapse by manually increasing my ISO or decreasing my shutter speed (for sunset) when the light meter shows that the picture is underexposed. Conversely, I can decrease the ISO or increase the shutter speed (for sunrise) when the light meter shows that the picture is becoming overexposed. I can do this manually via the buttons on the camera, which is not preferable since it might cause camera shake; or I can do this wirelessly through DSLRDashboard. Post-processing for deflickering and stitching the pictures together would be done through LRTimelapse. By this method, it requires that I buy the full version of LRTimelapse and a wireless router for my camera. I'm trying to avoid increasing my expenses for this hobby. As an aside, is my method of creating regular timelapses the correct way or the incorrect way?

Also, someone told me about the 180 degree rule, where the shutter speed is half the interval time. So for example, if I set my interval to 2 seconds for fast moving clouds, that means (based on this 180 degree method) I have to set my shutter speed to 1 second. Wouldn't this cause too much motion blur? And wouldn't this cause a lot of information to be lost between each frame? Some clarification on this would be awesome.

The second option for me is to use Magic Lantern (ML), and I prefer this option because (apparently) all of the above can be done using the AutoETTR, deflicker, XMP, ramping, etc., modules from ML, not to mention I don't need to spend additional money on software and gadgets to make a holy grail timelapse. I want to start my studies on holy grail timelapses by learning AutoETTR. So, the following is my understanding of AutoETTR and its parameter after reading the threads suggested by others.

Trigger Mode:
I know that I need to set my "Trigger Mode" to "Always on" for timelapses. From my understanding, this allows the camera to analyze what's happening in the frame and to automatically adjust the ISO and shutter speed accordingly to compensate the light during a sunset or sunrise. When I enable Live-View, I see the RAW histogram and what is being overexposed. The RAW histogram has an "E" number and three color-coded circles (i.e., R, G, B circles with numbers inside of them).

Here are my questions for "Trigger Mode" and the "RAW Histogram":
1) Do I need to take test shots in Live-View so that AutoETTR works correctly? I read somewhere that I have to take 2-3 test shots so that AutoETTR can perform it's analysis.
2) What does the "E" number mean on the RAW histogram?
3) Is there anything I need to adjust or re-adjust after seeing the "E" number? If so, what parameters do I need to adjust or re-adjust?
4) I know that the R, G, B circles are the red, green, and blue channels, respectively. But what does the number inside the circles mean?
5) Is there anything I need to adjust or re-adjust after seeing the number inside the R, G, B, circles? If so, what parameters do I need to adjust or re-adjust?

Slowest Shutter:
I understand that during a sunset or sunrise timelapse, AutoETTR will change the ISO and shutter speed to compensate for the transition. In order to ensure that AutoETTR works correctly, I have to set the "Slowest Shutter" to be 2-3 seconds shorter than the interval time.

Here are my questions for "Slowest Shutter":
1) When the sun is setting, the interval should be fast, maybe around 3-5 seconds? The interval needs to be longer as it becomes darker, maybe 10 seconds during twilight, and maybe 15-30 seconds to properly expose the stars? In this respect, is there a way to automatically increase the length of the interval?
2) Also, I assume that the "Slowest Shutter" in AutoETTR would also need to be adjusted, or else AutoETTR won't work. Is there a way to automatically adjust the "Slowest Shutter"?

Highlight Ignore:
I think this parameter ignores the amount of highlight that is being clipped in the frame. So, for example, "Highlight Ignore" can be set to a certain percentage to ignore the clipping that occurs in a sunrise or sunset timelapse.

Here are my questions for "Highlight Ignore":
1) "Highlight Ignore" is sent based on percentage. In sunset timelapses, how do I know how many percentage, or the approximate percentage, to set "Highlight Ignore" so that AutoETTR ignores the clipping in the sun without making everything else dark?
2) Do I adjust the percentage of "Highlight Ignore" based on the RAW historgram? If so, what do I look at in the RAW histogram to know how many percentage to set "Highlight Ignore"?

That's all the questions I have for now. I apologize if I sound stupid or simply clueless, but I am so determined to learn how to shoot sunset/sunrise timelapses that not knowing how to is driving me nuts. I hope someone can answer my questions as if they were explaining it to a 10 year old. Once I have a good grip on how to shoot a holy grail timelapse using ML, I promise to contribute back to the community by creating a thread that explains everything in the simplest terms possible.


Mon Sep 01, 2014 3:49 am
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Post Re: Magic Lantern ETTR Timelapse
The only question I can really answer is the slowest shutter - I set this to what I would shoot the night scenes at - for the city test I did, I set this at 10 seconds with a max ISO of 3200 or 6400.

You're also asking about (but didn't specifically mention) shutter ramping - using a faster shutter speed during the day then slowing it as it gets darker. ML can do this (probably somewhere in the intervalometer settings), but I have yet to try it. I think a lot of these questions may be best asked of, or answered by, people on the ML forum who wrote the software and have a much better idea of the how it all works.

Here's a simple idea - follow the step-by-step guide in the link in the first post, try it a few times, and see what you come out with. You're asking a lot of good questions, but doesn't sound like you've actually given it a go yet. You may find it turns out better/easier than you expected.

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Mon Sep 01, 2014 2:06 pm
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Post Re: Magic Lantern ETTR Timelapse
KarlM: Thanks for replying, I really appreciate it. I think I've been doing timelapse wrong for the past year. I've been setting my interval really short (like 2-4 seconds) in an attempt to avoid staccato. I was wrong because it is the shutter speed and not the interval length that causes staccato. I think your comment about setting your interval during the daytime to be the same as the night-time kind of confirms this. Thanks.

Yea, I'm going to give the AutoETTR and deflicker a try for this first time this weekend and see how it comes out. I'll set a longer shutter speed and interval instead of my normal 2-4 seconds. I hope this will be more of a learning experience than a discouragement. Wish me luck!


Tue Sep 02, 2014 5:19 pm
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Post Re: Magic Lantern ETTR Timelapse
ML's ETTR takes care of the shutter speed and ISO ramping, as long as you set the slowest shutter (ML setting), interval (ML setting), and max ISO (camera setting), you should be ok.

My day-to-night city test had a 15 second interval (a little slow for objects that are too close, but I had a river below me), and a max shutter of 10 seconds. ML's ETTR took care of the rest. Good luck!

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Wed Sep 03, 2014 1:50 pm
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