Author Topic: Canon EOS M  (Read 865307 times)

masc

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Re: Canon EOS M
« Reply #3675 on: November 08, 2019, 04:30:20 PM »
Would having a black and white only allow greater resolution?
No, it is a bayer sensor, so it is just one channel per pixel.
5D2.212 | EOSM.202

ZEEK

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Re: Canon EOS M
« Reply #3676 on: November 09, 2019, 12:19:46 AM »
I have some issues with "2.5k mode".
My settings are:
 - shutter lock at 1/48 with fine tuning (-0.29)
 - FPS override ON at 24fps, Exact FPS priority
 - Sound off

*Get rid of these settings for 2.5K Mode (Especially FPS Override). I've been using this 2.5K Mode recently and haven't had these mentioned issues with the EOS M. The monitor preview is perfect as seen on the EOS M Liveview, but "too many" dropped frames to the point it's not useable. With MCM Rewire 1080 these are fine..


EOS M - EOS M2

Ilia3101

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Re: Canon EOS M
« Reply #3677 on: November 09, 2019, 12:42:22 PM »
SageThumbs supports many formats and is open source, although it uses GFL lib, which is proprietary (they could have just used imagemagick or something, don't know why they used GFL). Anyway, Ilia's library could potentially be integrated in one of those thumb viewers for windows...

Is that SageThumbs thing easy to write plugins for? I can do it quickly if it's a really simple C api, otherwise I don't want to. I'll just rip out MLV App code and put it in, don't have to wait for LibMLV to be ready. (Done that many times before)

Tried to create a Mac finder thumbnail plugin before and failed, that did traumatise me.
5D2, MLV App

2blackbar

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Re: Canon EOS M
« Reply #3678 on: November 12, 2019, 10:11:22 PM »
Is it possible to center crop modes on my own by editing some reg values ? I need it for 16mm film camera lenses( they should fit in super16mm rectangle, without
 centering they dont) so vignette is not visible in one corner.
Originally crop modes are shifted like this:

And i would like them to be centered like this :

Is that possible ?

Danne

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Re: Canon EOS M
« Reply #3679 on: November 12, 2019, 10:20:55 PM »
You can alter width and height to some extent. Also left right. This applies not to all modes. Need more information.
There are also cmos 5 and cmos 1 or 2 I think. All above are included in the crop mode sub menu.

2blackbar

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Re: Canon EOS M
« Reply #3680 on: November 12, 2019, 10:59:31 PM »
Did You found some values that shift image in crop mode up/down or left right ? What regs i need to change and doest it update preview or i need to record it to see it ?
Im in 3x3 mode with set button, changing CMOs 1 and 2 , but without luck,  reg 6800 height and width adjustments also bring no changes to framing preview.

Danne

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Re: Canon EOS M
« Reply #3681 on: November 12, 2019, 11:11:07 PM »
Two of the cmos regs moves image to some extent. Try and narrow down which ones. There's info on different places in forum posts. Can't help further atm but if you spend a week or so testing you should be getting what you want.

2blackbar

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Re: Canon EOS M
« Reply #3682 on: November 12, 2019, 11:57:30 PM »
Thanks, i read ML croprec source  for M and found your values, then adjusted them, so for centered 3x3 image i used :
CMOS 5  - 0x380
CMOS 7  - 0xA49
This centers the image as best as possible, CMOS 7 is adjusting up/down so value 48 is too much offcenter and also 50 is too much, not pixel perfect but its best i could do.
Also while experimenting i discovered that it is actually possible to record 10x zoom mode( but i cant reproduce it again) and move around crop window quite freely with ease if you know the values, mostly numeric values work, letters of alphabet wont work but thats not any rule , there are exceptions , but it checks out more often than not.

Is it possible to use these cmos settings for official releases so i dont have to dial them in ?

Ill try to work with 2.5K mode now and center it...
---
Got left/right centered in 2.5k mode :
CMOS(5) 0x2DF
Ill work on up.down
-ok up/down is basically what you already have set in the sourcecode:
CMOS 7 - 0xaa9
So i think thats pretty much it.
I didnt tried if anamorphic is offset yet

Its quite fun process , and not that hard if you know what values you have to adjust slightly
Compared old framing vs new :


Danne

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Re: Canon EOS M
« Reply #3683 on: November 13, 2019, 07:38:01 AM »
Great. I have been tweaking those numbers a lot bit refinements are welcome.
To exclude implementation of wrong presets I need exact name of preset and if using x3zoom mode or not.

2blackbar

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Re: Canon EOS M
« Reply #3684 on: November 13, 2019, 08:25:45 AM »
First one cmos5 - 380 and cmos7 - a49 is for 3x3 crop mode, entered using set button in mcm rewire and started adjustments to cmos 5 and 7.
Second values cmos5 - 2df and cmos7 - aa9 are for 2.5k mode 10 bit ( i switch to 12 bit cause impact is minimal and with 10bit you get banding in darks like we used to get in old 8 bit raw mode)from selector menu and it works in 16:9 and cinemascope 2.39:1 aspect ratios
I tried to refine them more but image gets squeezed with some values and when i go for higher values to desqueeze then framing moves too much to opposite side already.
All done in 23.976 fps.recorded and tested.

Danne

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Re: Canon EOS M
« Reply #3685 on: November 13, 2019, 09:29:21 AM »
First one cmos5 - 380 and cmos7 - a49 is for 3x3 crop mode, entered using set button in mcm rewire and started adjustments to cmos 5 and 7.
Second values cmos5 - 2df and cmos7 - aa9 are for 2.5k mode 10 bit ( i switch to 12 bit cause impact is minimal and with 10bit you get banding in darks like we used to get in old 8 bit raw mode)from selector menu and it works in 16:9 and cinemascope 2.39:1 aspect ratios
I tried to refine them more but image gets squeezed with some values and when i go for higher values to desqueeze then framing moves too much to opposite side already.
All done in 23.976 fps.recorded and tested.

Still very cluttery. Do you mean:
mv1080p MCM rewire in x3 zoom mode cmos5=380, cmos7=a49
2.5K 1:1 centered cmos5=2df, cmos7=aa9

2blackbar

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Re: Canon EOS M
« Reply #3686 on: November 13, 2019, 09:46:12 AM »
Yes i suspect this
Code: [Select]
             
           if (x3crop == 0x1 || crop_patch)
                {
                    cmos_new[5] = 0x380;
                    cmos_new[7] = 0xa6a;
                }
Could be made into this :
Code: [Select]
             
           if (x3crop == 0x1 || crop_patch)
                {
                    cmos_new[5] = 0x380;
                    cmos_new[7] = 0xa49;
                }

and this :
Code: [Select]
  case CROP_PRESET_3K_EOSM:
                if (get_halfshutter_pressed() && gain_buttons && !RECORDING && is_movie_mode())
                {
                    return;
                }
                cmos_new[5] = 0x280;             /* vertical (first|last) */
                cmos_new[7] = 0xaa9;            /* horizontal offset (mask 0xFF0) */

to this :
Code: [Select]
  case CROP_PRESET_3K_EOSM:
                if (get_halfshutter_pressed() && gain_buttons && !RECORDING && is_movie_mode())
                {
                    return;
                }
                cmos_new[5] = 0x2df;             /* vertical (first|last) */
                cmos_new[7] = 0xaa9;            /* horizontal offset (mask 0xFF0) */

up/down horizontal framing was already fine, left/right vertical was a bit off.


Danne

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Re: Canon EOS M
« Reply #3687 on: November 13, 2019, 09:51:04 AM »
I'll look into it. Thanks.

2blackbar

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Re: Canon EOS M
« Reply #3688 on: November 13, 2019, 10:22:49 AM »
I found centered anamorphic 5k ( anamorphic 5k set from jhop selector) cinemascope 2.39:1 ( when switching to 16:9 it works too)
CMOS7 - 0xf27
I also made this reference image for different sensors , if anyone would like to tinker with CMOS 5 and 7, its easy just display this image on monitor and zoomin to apsc or fullframe depends on your camera, then enter crop modes and adjust, you can already find some CMOS values in sourcecode .
http://ipic.su/img/img7/fs/sensors.1573634342.png

Danne

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Re: Canon EOS M
« Reply #3689 on: November 13, 2019, 12:13:02 PM »
What's jhop selector?
Not working with anamorphic rewired mode?

2blackbar

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Re: Canon EOS M
« Reply #3690 on: November 13, 2019, 01:28:29 PM »
5k anamorphic rewired 10 bit , then i set cmos 7 - 0xf27 and its centered

Janke

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Re: Canon EOS M
« Reply #3691 on: November 15, 2019, 12:55:37 AM »
Hi friends - long time, no chat!  I sold my two EOS M quite some time ago (bought M3 and M50), but missed ML so much that I bought a used one in perfect condition. Managed to load the 2.0.2 version in a jiffy - looks great!

Since I now have a fisheye lens (the surprisingly good-value-for-money 7artisans 7.5mm/2.8), I of course tested the "defisheye" feature, and found it perfect for this lens! I can get perfectly straight lines! I notice that the live view is rough, but then after the shot, ML re-scans it very neatly.

Hovewer, I can't find a way to store the de-fisheyed photo to the SD card... Is it impossible, or am I so dumb that I can't figure out how to do it?

Sorry if I posted this in the wrong topic, in that case please advice me, thanks!  :o


EDIT - Looks like it's not possible, found this just by chance browsing:

Features that are NOT possible - please don't request them

Things that can be done in post. - Why spending development time on things like in-camera HDR? Magic Lantern is not a replacement for Photoshop ;)

Previewing is OK (e.g. HDR preview, anamorphic preview, fisheye correction preview).

Janke

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Re: Canon EOS M
« Reply #3692 on: November 15, 2019, 02:01:13 PM »
Shot a quick test today with my old Canon TV-zoom 7.5-97.5mm/F1.4 - the reason I love the ML 3x video zoom:

https://www.youtube.com/watch?v=SNwHllhAnhM

(The video is unprocessed, needs a bit of sharpening to look good...)

I think my combination of this particular lens and the EOS M might well be the only one in the world - I had to do a bit of lathe work to get a C-mount on the lens!  :D

Walter Schulz

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Photogs and videographers: Assist in proof reading upcoming in-camera help!. Your input is wanted and needed!

Janke

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Re: Canon EOS M
« Reply #3694 on: November 15, 2019, 08:23:14 PM »
Exactly!

Maybe I'm not the only one using it on an EOS M, then? :o
OTOH, the original lens had zoom and aperture motors which I removed, and a bayonet lens mount, which I modified to a c-mount (I have a metal workshop) - long before I got any EOS.

I also have a Canon TV zoom 12.5-75mm/F1.8 - much better quality, and with original C-mount - this one: https://www.picclickimg.com/d/l400/pict/302802742279_/Canon-TV-Zoom-Lens-J6x12-118-125-75mm-C.jpg

Here's a video example shot with that lens: https://www.youtube.com/watch?v=1Rq4hQGtnrE

I started DSLR phtography with the 550D, back in 2010, now I have an M1, M3 and M50...

I needed the 550D as a second camera when shooting a documentary for YLE, the Finnish Broadcasting Co. The other camera was a HV30! A few years later, I shot another documentary with my two original M1s, plus the HV30.
It's nteresting that these consumer-grade cameras are good enough even for national broadcasting (but I didn't use these video zooms, they certainly are not good enough for that - but they sure are nice to play with... )

cmh

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Re: Canon EOS M
« Reply #3695 on: November 15, 2019, 11:34:46 PM »
A Betacam era lense, damn. They both seems to be "parfocal like". Great stuff.

Danne

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Re: Canon EOS M
« Reply #3696 on: November 16, 2019, 09:57:54 AM »
New build:
https://www.magiclantern.fm/forum/index.php?topic=9741.msg208959#msg208959

- Better center preview in anamorphic rewired mode(thanks 2blackbar)

Regarding mcm rewired x3zoom and 3k mode I didn´t implement the changes. Couldn´t see the benefit in x3zoom. In 3k mode it´s already better centred than the what´s suggested.

Janke

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Re: Canon EOS M
« Reply #3697 on: November 16, 2019, 03:23:28 PM »
A Betacam era lense, damn. They both seems to be "parfocal like". Great stuff.

Indeed, those lenses are from the 1980s!  And they do stay in focus during zooming. However, they are inteded only for PAL or NTSC resolution (no more than 720/756 x 486/576), so they don't look too good in full-HD. But a little sharpening in post will do wonders... ;)

masc

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Re: Canon EOS M
« Reply #3698 on: November 16, 2019, 08:23:11 PM »
New build:
...
- Better center preview in anamorphic rewired mode(thanks 2blackbar)
Thanks! Centering is great now!
5D2.212 | EOSM.202

ZEEK

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Re: Canon EOS M
« Reply #3699 on: November 16, 2019, 10:46:58 PM »
Awesome news, thanks!!  :)
EOS M - EOS M2