Author Topic: Canon EOS M  (Read 1167854 times)

yokashin

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Re: Canon EOS M
« Reply #4075 on: May 02, 2020, 11:01:31 AM »
Maybe can help making the format SD card from the Canon menu with the option not to delete ml files?

canoneer

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Re: Canon EOS M
« Reply #4076 on: May 02, 2020, 07:13:24 PM »
Thanks. Will do. I have another SD card set up and use that at the moment. Experienced a pink artefact in the raw files I produced for test today. If I am able to include an image I will. I seem not able to edit it away in Resolve after converting to DNG or in MLVapp prior to.

canoneer

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Re: Canon EOS M
« Reply #4077 on: May 02, 2020, 07:14:34 PM »
Thanks. Will do. I have another SD card set up and use that at the moment. Experienced a pink artefact in the raw files I produced for test today. If I am able to include an image I will. I seem not able to edit it away in Resolve after converting to DNG or in MLVapp prior to.

https://www.dropbox.com/s/0d5mgub0se5ow57/Untitled_1.1.1.jpg?dl=0


IDA_ML

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Re: Canon EOS M
« Reply #4078 on: May 04, 2020, 08:55:48 AM »
Earthquake shaking in the high-resolution modes of the EOS-M and 100D

Yesterday, I decided to film a few timelapses with the EOS-M at low frame rates (0,5 to 2 fps) using the Full Sensor Readout mode at 1736x2928 and the 4k (4080x2296) crop mode (1:1) at 12 bits lossless.  When I came back home, processed the footage with MLVApp and exported it at 24 fps, I was shocked.  It was entirely ruined by horizontal earthquake shaking, as we know it from the 7D before Dfort successfully managed to fix it in his latest experimental builds.  Initially, I thought, it was the wind causing the shake and my tripod was not stable enough but then I shot another test in my apartment and the shaking is still there.

What happens is that the image shifts horizontally by a few dozens of pixels back and forth from frame to frame.  This shift is also visible on the preview screen image while recording if there is a vertical contrasty edge in the scene.  This edge also moves back and forth every time the screen refreshes.  Fortunately, I was able to fix my footage by applying stabilization to it in Resolve.  If filming at higher fps (14 to 24 fps) the shaking does not seem to be so obvious and is hard to notice but stabilization makes it smoother meaning that it is probably there even at higher frame rates. 

I used the latest 29-th of April experimental build for the 2.0.2 FW version on the EOS-M, installed on the recommended 64 GB SanDisc Pro SD card but I found some unprocessed timelapse footage shot on the previous January 10-th, 2020 build and shaking is there too.

Here are my settings:

Shutter speed in the Canon Menu: 1/30 sec.

Video tab settings in the ML menu:
======================
presets: 5k anamorphic rewired
RAW video: ON 1736x2928 (16:9 ratio set in the submenu, Preview: Framing)
bit depth: 12 bit
shutter range: Full range
FPS override: 1 fps (actual shutter speed was 1 sec. at this setting)
everything else set to OFF

I used the same settings also with the 4k crop (1:1) mode, except for Presets.
===================================================

Here are a few samples before and after MLVApp conversion that illustrate the shaking phenomenon.  A stabilized sample is also included:

https://we.tl/t-F3KOCy4iGx

Has anybody else experienced this?  I have noticed that this phenomenon exists on the 100D too and is well reproducible too.  If necessary, I can post links to samples from that camera too.

Hopefully, it's an easy fix.


     


canoneer

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Re: Canon EOS M - card full message
« Reply #4079 on: May 04, 2020, 09:30:38 AM »
ref to earlier post:

........ The assert file reported about mlv lite packaging (deleted it as I tried to release space (silly me)). ..........

(nightly 13 jan eos m 202.)

Clip - only audio played by mlvapp.

The assert files hold versions of this text when generated to the card for my issue:

ML ASSERT:
0
at mlv_lite.c:2751 (compress_task), task compress_task
lv:1 mode:3

compress_task stack: 1de948 [1de9d8-1dd9d8]
0x0009EC24 @ be6338:1de978
0x0009E564 @ 9ec80:1de948

Magic Lantern version : Nightly.2020Jan13.EOSM202
Mercurial changeset   : bdda3ceefa0c+ (crop_rec_4k_mlv_snd_raw_only) tip
Built on 2020-01-13 17:08:33 UTC by Windows@ALPHA.
Free Memory  : 232K + 2610K

I am clueless to if this is due to my handling - the lighting conditions, lens (18-55), card (64gb SanDisk extreme pro), or settings(raw, 1736x976, 5 sec clip, 25fps, focal 42mm, 1/50s, 180 deg, f9.9 iso100, 14bit lossless, audio 2ch,48kkhz)

Next clips normal take and play so I am not having a stable problem. But on my other card -same build - 32gb same type - I have had reported available disk space 36gb on 32gb card - and full card when 7gb available - after same assert reports.


Danne

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Re: Canon EOS M
« Reply #4080 on: May 04, 2020, 09:46:09 AM »
@IDA_ML
I cannot reproduce. Works perfectly fine here.
It looks like your tripod wasn´t set alright. Is it happening still or only that time? Please test 5 or 10 more recordings and see if you can get steady issue reproducing.
If you want further examination please examine two dngs side by side that differs, extract metadata both with exiftool and from mlv metadata and see if anything changed. I have not time to do deeper analysis on my own.

I also used step 1 and two from here with fps override set to 1s shutter range ON and interval set to 3 seconds(should work with also interval of 1s). Also works perfectly:
https://www.magiclantern.fm/forum/index.php?topic=9741.msg223302;topicseen#msg223302

IDA_ML

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Re: Canon EOS M
« Reply #4081 on: May 04, 2020, 10:10:16 AM »
I checked the issue with the two latest experimental builds, starting from the default preset and shot dozens of timelapses with sometimes turning camera off and on inbetween to save battery power.  Shakiness was observed in all clips.  It is most obvious at 1 fps.  I also tested the 100D with your latest build - same situation.  I did not use the intervalometer on the EOS-M because the settings that I listed gave me perfect reciprocity (fps/shutter speed = 1) and I was happy with that.   I just press the record button to start and stop the video.  This worked perfectly on the 100D last summer, (no shaking), with the older builds back then.  I am surprised that you could not reproduce it with my settings.  Could you please just try without intervalometer, with settings from my previous post?  When you have time, of course!  It's definitely not the tripod!  Please take a look at the samples that I sent and compare with the stabilized one. 
I am too busy right now but will continue testing, as you suggest, when I find some time.  Will try the intervalometer option too. 

Danne

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Re: Canon EOS M
« Reply #4082 on: May 04, 2020, 11:02:54 AM »
Already tested without intervalometer. Works perfect. I suggest you try and narrow down exact settings creating this effect. Could take a while so be patient. Good luck.

IDA_ML

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Re: Canon EOS M
« Reply #4083 on: May 04, 2020, 11:08:49 AM »
Danne,

Just did another brief test with the camera placed on a very massive and heavy table inside.  It reveals that the shakiness is there also at 14,288 fps in the 5k anamorphic mode.  At this fps it is harder to see but it's there. This sample was shot at 14 fps, 10-bit lossless, then exported with MLVApp at 24 fps and finally, scaled down to 1920x1080 in Resolve to make the file smaller.  A stabilized version was created too.  The comparison of both samples you can download from here:

https://we.tl/t-xyV5n7dd57

Please watch very carefully!   The difference is hard to see if you don't know what to look for - the horizontal shifts!

Got to run now.

Danne

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Re: Canon EOS M
« Reply #4084 on: May 04, 2020, 11:32:03 AM »
As I told you. Cannot reproduce. If you want more careful inspection I need screenrecordings, screenshots etc that fully in detail shows me what is going on. Sending me more files won´t solve the issue.

Edit: You also need to test other settings to see if you can narrow down the issue. Hopefully you follow exact steps to run basic set up leaving certain parameter alone but I suspect you do all kinds of personal changes not told here(or that I miss to see) so I really will need to see screen recordings of exactly what you do. Not only what you tell/describe.

IDA_ML

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Re: Canon EOS M
« Reply #4085 on: May 04, 2020, 03:28:22 PM »
I will, don't worry!  Just let me get back from work and I will continue testing.  Timelapse videography is one of my favorite photographic genres and ML has always done a great job for me in that area.  Never had that problem before.  I will do my very best to figure it out and will report my findings here.  Thanks.

Danne

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Re: Canon EOS M
« Reply #4086 on: May 04, 2020, 03:40:02 PM »
Yeah, strange. Tested both 4k and 5k anamorphic flv. What we need is one setting that will be 100% reproducible. Maybe it is af or fps override related, I have no idea really.

Danne

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Re: Canon EOS M
« Reply #4087 on: May 04, 2020, 08:24:00 PM »
New version:
https://www.magiclantern.fm/forum/index.php?topic=9741.msg208959#msg208959

- Fix for issue enabling correct map file in mlv app when in x3crop mode no ratio set. Thanks to @blackbar:
https://www.magiclantern.fm/forum/index.php?topic=16054.msg226786#msg226786
- Yet another upload. Refining centre for higher frame rates
- Testing consistent 48fps also for x3crop mode

IDA_ML

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Re: Canon EOS M
« Reply #4088 on: May 05, 2020, 05:47:03 PM »
Danne,

After two more days of testing, I finally found out the reason for the shaking.  It was a totally unexpected hardware effect, that I never experienced before - it was the image stabilizer of the lens that I used - the EF 35/F2 IS.  I thought, it should automatically recognize when the camera is on a tripod and turn the IS off.  However, this was never the case.  It would stay on all the time while on the tripod providing a perfectly stable footage.  When I used this lens for filming timelapses in the past, I always left the IS on, even when using a tripod since it would nicely compensate for small tripod vibrations caused by the wind.  Not this time though - when on the tripod, the IS now causes shakiness itself.  I have no idea why.  It still works perfectly stabilizing hand held footage at 24 fps but when filming on a tripod at low fps the shakiness is there.  Turning IS off results in an idealy stable tripod footage.

It was a good exercise, for me at least, since I checked all timelapse functions thoroughly and they all work fine, with IS off, of course.  The settings that I described in my post #4077 can easily be reproduced and I can lower the fps down to 0,544 fps (shutter speed 1,8 sec.) - perfect for slowly moving clouds.  Anamorphic 5k Full Sensor Readout footage looks gorgeous on a 30-inch screen.  I use this mode a lot if I need high-resolution aliasing free footage at 14,288 fps.  If I need to film a timelapse in between, all I need to do is lower the frame rate to 0,5-2 fps.  Have not tested your today's build yet but the January 10-th one works great for timelapse work.

I apologize for the false alarm and inconvenience that I may have caused to you and thank you for your patience with me.

Danne

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Re: Canon EOS M
« Reply #4089 on: May 05, 2020, 05:56:36 PM »
It was a totally unexpected hardware effect, that I never experienced before - it was the image stabilizer of the lens that I used - the EF 35/F2 IS.  I thought, it should automatically recognize when the camera is on a tripod and turn the IS off.
Well, good you cleared that one out.

yokashin

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Re: Canon EOS M
« Reply #4090 on: May 05, 2020, 06:17:44 PM »
With the camera on a tripod, I turn off the IS. I've been doing this since the night I photographed the stars. They were so strange that I even advertised the lens :) Within 15 seconds of exposure, IS moved stars by 1-2 pixels ...

Danne

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Re: Canon EOS M
« Reply #4091 on: May 06, 2020, 04:32:14 AM »
I did not use the intervalometer on the EOS-M because the settings that I listed gave me perfect reciprocity (fps/shutter speed = 1) and I was happy with that.
Intervalometer itself don't affect your shutter speed. It gives you control over interval between frames. Right now you're recording 1 fps continuous but timelapse effect often benefits from longer pauses between takes.
On a sidenote one can achieve more control over shutter working with frame averaging. Record bursts of 24 frames if doing 24fps presets. In post average these bursts into single files. Effect should be the same as doing fps override 1s but without any latency in liveview. Also opens up to use  a greater aperture, no need for nd filters etc.

IDA_ML

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Re: Canon EOS M
« Reply #4092 on: May 06, 2020, 09:18:39 AM »
On a sidenote one can achieve more control over shutter working with frame averaging. Record bursts of 24 frames if doing 24fps presets. In post average these bursts into single files. Effect should be the same as doing fps override 1s but without any latency in liveview. Also opens up to use  a greater aperture, no need for nd filters etc.

Thanks a lot for this clarification, Danne.  I didn't know about these useful additional effects of the intervalometer mode.  Just thought, it will be good to set the pause between frames and the duration of the take.  Will play more with it before heading for my next timelapse filming.

By the way, I think that the 5k anamorphic full sensor readout mode is revolutionary!  Finally aliasing free footage of very high quality, even with Dual ISO.  I don't fear filming continuous regular video at 14 fps any more.  Interpolation to 24 fps in Resolve really provides excellent results and very smooth beautifully looking video due to the nice motion blur.  Great job on that one!

IDA_ML

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Re: Canon EOS M
« Reply #4093 on: May 06, 2020, 09:42:15 AM »
I also have another question about a function that would make our lives easier.  Would it be possible to memorize specific custom settings, that differ from the hard coded presets, similar to C1, C2 and C3 on the 5DMkIII?  These custom settings should be easily accessible as on the 5D3.  Why, and aren't the already available presets not enough?

Well, not really.  I often change modes and when I go back to a previous mode, something has changed (shutter speed, shutter fine tuning or resolution, etc. ), so I have to adjust these settings again and this takes valuable time and wastes battery power.  If I have a specific setting that I use often and I can store it as C2 for example, after filming in another mode or use another preset, every time I want to come back, I simply select custom setting C2 and it restores all of my settings stored in that custom mode.  This is how they do it in the 5D3. 

Danne

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Re: Canon EOS M
« Reply #4094 on: May 06, 2020, 10:03:26 AM »
In later builds 5k anamorphic flv is at 10fps. This to be able to use the full sensor readout.
Custom save could probably be done to a config file but for me a lot work involved and nothing I would really use. A much better approach for you is to build a custom preset list with lua and put it in lua section.
A lot of ongoing lua progress around here so you could ask someone or try yourself.
Or even buy an extra eosm. They´re cheap enough...

IDA_ML

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Re: Canon EOS M
« Reply #4095 on: May 06, 2020, 10:59:43 AM »
Yes, if someone familiar with LUA scripting would be interested in jumping in and implementing this additional custom functionality, I am sure, this will make many EOS-M shooters quite happy.

Danne

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Re: Canon EOS M
« Reply #4096 on: May 06, 2020, 11:05:03 AM »
What many wants is maybe not that relevant if you think about it.
If you can't find time to do it yourself just create a post describing what you want someone else to do for you. If possible suggest a little sum of money or volunteer as a tester.

IDA_ML

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Re: Canon EOS M
« Reply #4097 on: May 06, 2020, 11:37:58 AM »
Yes, of course I would volunteer as a tester - I am interested in that myself.  I did that a lot in the past, remember?

The idea is to memorize a current set of settings, (say timelapse filming at 5k anamorphic with intervalometer active - C1), on a push of a button for C1-C3, just as this is done in the 5D3.  And then, restoring those C1 settings, (from say 1080p MCM rewired),  should be possible on a push of a button and maybe a C1-C3  selection from a submenu too.  The quick selection of ISO and aperture on a push of a button is simply fantastic, as it is now in the EOS-M.  Custom sets of C1-C3 settings should be selectable in a similar way too.

Danne

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Re: Canon EOS M
« Reply #4098 on: May 06, 2020, 11:57:22 AM »
Yes I know what you mean. Better you start a new forum post dedicated to this.

Disease

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Re: Canon EOS M
« Reply #4099 on: May 06, 2020, 05:13:04 PM »
I am actually getting into this camera a lot more, I forgive its aliasing and other issues because its like a damn swiss army knife with ML installed.
Also I love the actual ergonomics of the camera, its a solid piece of metal, its tough, small, easy to hold. I love taking shots in the streets and stuff and no one cares when you have a tiny little cam like this. The still images are actually really nice out of the cam, the video footage is like muddy and aliasing and moire but still better than most cheap camcorders and this cost me £100 with the kit lens! Also the audio in is nice and clean, just chucked in a lapel mic and record nice clean audio.

One thing is though the audio seems to be coming in much hotter than the meter indicated? Was literally almost clipping when I saw it on the timeline... Noted it is a little on the hot side, better to have too much gain than not enough like the BMPCC!

I hope the more I master this camera I can get cleaner images from the video, but for now, for a bit of fun and a decent stills camera its a steal. I have a better camera if I want some cleaner video. It is also good to have this community here to ask any questions and learn from...

See that darn RGB moire crap in the trees? Is that normal?