Author Topic: Canon EOS M  (Read 749751 times)

baladev

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Re: Canon EOS M
« Reply #2800 on: June 10, 2019, 09:37:53 AM »
Workaround when using 10bit for example in crop mode sub menu is doing the same as when reducing to 12 or 11 bits in RAW video section. Not as sophisticated but works.
Are you saying changing bitrate in crop mode sub menu is different from doing the same in RAW video section?

Danne

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Re: Canon EOS M
« Reply #2801 on: June 10, 2019, 10:07:41 AM »
Yes. It's not working from RAW video section. Workaround is changing analog gain regs directly in crop mode submenu. So, always stay in 14bit lossless then change bitdepth in crop mode sub menu.

henricusmaria

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Re: Canon EOS M
« Reply #2802 on: June 10, 2019, 10:09:39 AM »
Thanks Danne.

ricardopt

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Re: Canon EOS M
« Reply #2803 on: June 10, 2019, 12:30:18 PM »
Hi everyone

Following Danne's advice im trying anamorphic mode (1x3 pixel binning), i start the lua script and then select 4k anamorphic and select 25fps but i get a zoomed in video, is this correct? Also when i select to autorun the lua script it says "cinema script is now disabled" everytime i turn on the eos m, autorun is supposed to be the oposite?

Thanks for any help/info.

Danne

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Re: Canon EOS M
« Reply #2804 on: June 10, 2019, 12:44:11 PM »
Yes, no autorun with this script. You run the script once and it sets you up with all you need for filming in anamorphic mode. All settings persists.
Real time(cropped) preview while pressing half shutter, otherwise framing preview.
Download latest version, will get you into anamorphic rewired mode, slightly better real time previewing.

ricardopt

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Re: Canon EOS M
« Reply #2805 on: June 10, 2019, 01:04:15 PM »
Thanks Danne,im using the latest version, my doubt was about the zoom in effect, is it normal? when i started to use magic lantern some modes had a zoom effect but by reading the forum tought that 1x3 mode didnt have the zoom in effect, also in orden to use 1x3 binning i need to select 4k anamorphic? When "hovering" 4k anamorphic it says it uses it, the other modes mcm rewire etc dont use that method?




Danne

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Re: Canon EOS M
« Reply #2806 on: June 10, 2019, 01:34:45 PM »
Not sure what you are asking here. To verify you recorded a file in anamorpic mode simply drop it in Mlv App and export a still file. Check resolution, should be upsampled.

baladev

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Re: Canon EOS M
« Reply #2807 on: June 10, 2019, 02:20:12 PM »
ricardopt

You are correct, when using anamorphic mode you only get a crop of the sensor. In fact, the only mode that gives you full sensor picture is mv1080p varieties, all other modes only read a part of the sensor, hence what you call a zoom in effect. The difference between 1x1 and 1x3 (anamorphic) modes is that the latter is able to capture a larger part of the sensor. With 1x1 mode you get around x3 crop, with 1x3 you get around x1.5-1.6 (crop depends on the resolution chosen, the higher the res, the larger the crop,  the smaller the crop factor).

Does it make sense?

masc

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Re: Canon EOS M
« Reply #2808 on: June 10, 2019, 02:32:32 PM »
In theory 1x3 mode must not have a crop factor (okay, very little crop: 1664 columns from 1736). We just crop it slightly to not get too much corrupted frames and to be able to record longer clips.
5D2.212 | EOSM.202

baladev

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Re: Canon EOS M
« Reply #2809 on: June 10, 2019, 02:37:16 PM »
I think you meant to say 'doesn't have to have a crop'. Obviously we crop because the cameras don't keep up with capturing and recording full sensor readout even in 1x3 mode, so we are bandwidth limited.

Danne

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Re: Canon EOS M
« Reply #2810 on: June 10, 2019, 02:47:39 PM »
I implemented it on 5D3, runs something like 5.5k 16:9, Can´t fully remember but it was quite the difference. Surprised nobody started recording anamorphic with this cam as well.

Also just uploaded a version for eosm which can record anamorphic rewired 1736x1900(5208x1900) when ratios is set to off in crop mode sub menu.
https://bitbucket.org/Dannephoto/magic-lantern/downloads/crop_rec_4k_mlv_snd_isogain_1x3_presets_2019Jun10.EOSM202.zip

Continuous, hell no  :P

baladev

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Re: Canon EOS M
« Reply #2811 on: June 10, 2019, 03:20:44 PM »
Thanks Danne

Should try this new build and see if it is pink frame free. With your April builds I got continuous at 1120 x 1890 24fps 12bit, but it was pink frame hell.

Danne

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Re: Canon EOS M
« Reply #2812 on: June 10, 2019, 03:25:21 PM »
Thanks Danne

Should try this new build and see if it is pink frame free. With your April builds I got continuous at 1120 x 1890 24fps 12bit, but it was pink frame hell.

If you set ratios to 16:9(crop mode sub menu) and 12bit in 4k anamorphic rewired mode it sets resolution to 1064x1800. Tested that?(Don´t forget to press canon menu and back when changing bitdepth by the way)

baladev

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Re: Canon EOS M
« Reply #2813 on: June 10, 2019, 04:36:06 PM »
The April 11 build that I used for a while allowed me to set resolutions up to 1890 vertical in 4k Anamorphic Rewired. Lower resolutions, around 1800 vertical in 16:9 gave almost pink frame free footage with kill GD on. The lowest I tested was 1072 x 1810 24fps 14bit. And yes, I'm in the habit of going to Canon menu now every time I change something.

henricusmaria

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Re: Canon EOS M
« Reply #2814 on: June 10, 2019, 04:37:08 PM »
If you set ratios to 16:9(crop mode sub menu) and 12bit in 4k anamorphic rewired mode it sets resolution to 1064x1800. Tested that?(Don´t forget to press canon menu and back when changing bitdepth by the way)

I’ve tested it with one of the latest builds. It worked fine, no pink frames.

Danne

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Re: Canon EOS M
« Reply #2815 on: June 10, 2019, 04:38:03 PM »
I’ve tested it with one of the latest builds. It worked fine, no pink frames.
Yes, tested as well, seemed to work fine also with global draw on. Cool.

ricardopt

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Re: Canon EOS M
« Reply #2816 on: June 10, 2019, 06:11:03 PM »
ricardopt

You are correct, when using anamorphic mode you only get a crop of the sensor. In fact, the only mode that gives you full sensor picture is mv1080p varieties, all other modes only read a part of the sensor, hence what you call a zoom in effect. The difference between 1x1 and 1x3 (anamorphic) modes is that the latter is able to capture a larger part of the sensor. With 1x1 mode you get around x3 crop, with 1x3 you get around x1.5-1.6 (crop depends on the resolution chosen, the higher the res, the larger the crop,  the smaller the crop factor).

Does it make sense?

Thanks for the explanation, i follow the eosm subforum, untill recently i didnt have time to test the builds, so all my "following" was done by reading comments and reading other people results, i probably misread something about the 1x3 as i tought it didnt have any crop.

Thanks once again for the explanation.

marcelolippi

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Re: Canon EOS M
« Reply #2817 on: June 10, 2019, 08:02:36 PM »
You miss the silver version dfort ;)

New version:
https://www.magiclantern.fm/forum/index.php?topic=9741.msg208959#msg208959

- Added the more up to date cinema ratio 2.39:1 into the preset menu in crop mode sub menu. Works on all presets:
- Updated the lua cinema script to enter 4K anamorphic rewired 2.39:1 mode as starting point

2.39:1

Grazie Danne, will be mine settings for the next documentaries

ricardopt

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Re: Canon EOS M
« Reply #2818 on: June 10, 2019, 10:25:31 PM »
here's a few clips, 4k anamorphic, only changed aspect ratio to 16:9 and set 25fps, 1064x1800 resized to 4k, very "clean" videos only selected 3x3 smooth in mlvapp and it was ready to go, @Danne where's the aliasing now? :)
watch in 2k or 4k resolution

Danne

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Re: Canon EOS M
« Reply #2819 on: June 11, 2019, 12:04:44 AM »
Oh yes. Clean as clean can be. Very nice looking. Good colors too.
Yes, chroma smooth 3x3 needed. Notified dfort on pixel maps for these new anamorphic modes. Hopefully he finds time soon.

henricusmaria

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Re: Canon EOS M
« Reply #2820 on: June 11, 2019, 11:42:39 AM »
here's a few clips, 4k anamorphic, only changed aspect ratio to 16:9 and set 25fps, 1064x1800 resized to 4k, very "clean" videos only selected 3x3 smooth in mlvapp and it was ready to go, @Danne where's the aliasing now? :)
watch in 2k or 4k resolution

Nice clips!
4K anamorphic works nice. For people and plants it works great. However with buildings I sometimes get wobbling/aliasing on vertical lines.
Edit: the wobbling is due to the IS lens

dokipen

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Re: Canon EOS M
« Reply #2821 on: June 12, 2019, 12:29:53 AM »
I like that 4k anamorphics 16:9, I was trying to do something like that myself the other night.

Is there a definitive list somewhere of what the differences are between the different crop_rec modes? I know that mv1080p is 3x3 binning and anamorphic is 1x3 binning but I don't fully understand all the modes and what exactly they do (ie what do 4k anamorphic and 5k anamorphic do differently?). If I haven't searched properly in this thread then please point me in the right direction.

Cheers
Dan

2blackbar

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Re: Canon EOS M
« Reply #2822 on: June 12, 2019, 12:00:08 PM »
i dont think anyone did that cause menu in ML kinda describes it well.
First modes are for 5x5 zoom,
2.5k zoom modes  are the ones without aliasing but zoomed in and with full shutter speed control
3k and 4k  zoom modes are similar but you cant choose shutter speed above 30 and fps is low so its for timelapses maybe.
next modes arewithout zoom until anamorphic modes on bottom - 4k and 5k modes which have full vertical resolution (every pixel rom sensor is captured) and horizontal binning(every third) So image is stretched but its best quality, comparable to full size photo with full shutter speed and fps control unlike previous 3k and 4k modes.
https://www.magiclantern.fm/forum/index.php?topic=9741.msg215467#msg215467

aulden

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Re: Canon EOS M
« Reply #2823 on: June 12, 2019, 05:52:55 PM »
Would an anamorphic 3:1 mode in the display tab work with the anamorphic croprec mode?

Danne

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Re: Canon EOS M
« Reply #2824 on: June 12, 2019, 06:17:07 PM »
Not sure what you mean but what is stopping you from testing?