Author Topic: Canon EOS M (Read 1169904 times)

Mythic Cinema · « **Reply #4550 on:** October 07, 2020, 09:07:58 PM »

Quote from: Teamsleepkid on October 07, 2020, 07:24:14 PM

Mines a 95MB tested in benchmark with a 30 second clip and getting 80MB read and write speeds. But crashes when I do anything over 57MB on 5k mode. Also I think the data rate is changing depending on the iso you choose correct? Wondering if the 170MB card will fix my problem.

Did you try the ML card hack options like sd overlock 192mhz in the movie tab? I haven't tried 5k myself, though.

Walter Schulz · « **Reply #4551 on:** October 07, 2020, 09:08:57 PM »

I don't get stable overclocking with 1st gen. There will be a hickup in transfer visible in cam benchmark. Hickup will occur at different write steps.
170 MB/s type runs like a clock.

Teamsleepkid · « **Reply #4552 on:** October 08, 2020, 12:35:20 AM »

Thanks Walter. I knew there was something wrong. Might have to check into that 2nd gen.

Mythic Cinema · « **Reply #4553 on:** October 08, 2020, 12:48:19 AM »

I have a Sandisk Ultra Plus 80MB/s 64GB and haven't had any overclock issues yet. At least none that I have noticed (yet). I just can't record as long continuously with certain resolutions as an Extreme Pro can, obviously. With that said, obviously if you are going to buy a card make sure its Extreme Pro 170MB/s 2nd generation.

marcelo.lippi · « **Reply #4554 on:** October 08, 2020, 11:57:38 PM »

latest version 5k frtp 1440x1810 as in the picture, at the limit of 60MB per second, no pink frame and no loss frames using the hdmi monitor ... looks great

Inviato dal mio Redmi Note 6 Pro utilizzando Tapatalk

marcelo.lippi · « **Reply #4555 on:** October 08, 2020, 11:59:10 PM »

latest version 5k frtp 1440x1810 as in the picture, at the limit of 60MB per second, no pink frame and no loss frames using the hdmi monitor ... looks great

IDA_ML · « **Reply #4556 on:** October 09, 2020, 11:20:15 AM »

Has anyone got the 5k anamorphic flv (1736x2928) working at 18 fps? If yes, could you please share your settings and recording times at 10 bits lossless?

tmilardo · « **Reply #4557 on:** October 10, 2020, 06:20:32 AM »

Quote from: Walter Schulz on October 07, 2020, 06:30:48 PM

Are you refering to 95 MB/s version as 1st and 170 MB/s as second? Then you are wrong. 1st gen won't switch to proprietary Sandisk transfer mode.Haven't found yet. Please link.
The 170 MB/s is a tad slower when used in cardreaders not able to run Sandisk's proprietary protocol. See www.cameramemoryspeed.com

I think Mythic Cinema is referring to this video by Dave McKeegan. Proprietary SanDisk transfer mode at 3:38

loknar · « **Reply #4558 on:** October 10, 2020, 05:06:26 PM »

I made a (very) short test of 5K anamorphic flv mode and for the good measure i threw in Dual ISO.
I like the looks of it and also color/exposure flexibility from Dual ISO is nice, although it's more difficult to process.

bern047 · « **Reply #4559 on:** October 10, 2020, 06:19:35 PM »

Excellent video, could you please share your settings, would love to try this out, thanks in anticipation

Danne · « **Reply #4560 on:** October 11, 2020, 10:32:22 AM »

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

- 5k anamorphic flv preset
Enable 18fps when ratio 16:9 and set 25fps are set. Will only work with framing preview. Realtime liveview will be frozen or else pink frames.

ZEEK · « **Reply #4561 on:** October 11, 2020, 02:54:44 PM »

In 5K Anamorphic FLV, Ratio set to 2.35:1 you get 1736x2214 @20fps. This is a very nice resolution.

With the 240Hz Patch or even 192Hz, it's continuous RAW 2.35:1, 1736x2214, 20FPS. I wonder if the preset could possibly be stretched a little from 20fps to 23.976/24p, continuous raw I guess could be taxed.

Danne · « **Reply #4562 on:** October 11, 2020, 04:00:39 PM »

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

- 5k anamorphic flv preset

Enable 24fps when ratio 2.39:1 and 2.35:1 and set 25fps are set(yes, aware of contradiction set 25fps becomes 24fps). Will only work with framing preview. Realtime liveview will be frozen or else pink frames.

Francois_lune · « **Reply #4563 on:** October 11, 2020, 06:24:14 PM »

Would it be be technically possible to enable 18 or 24fps for the 4K preset?

The goal wouldn't be to record at this fps but to have a more precise timing for recording single frames with the Rec-trigger function.

Danne · « **Reply #4564 on:** October 11, 2020, 07:46:17 PM »

I think you need to downöoad the code and try and learn. Seems you have some very specific needs.

Francois_lune · « **Reply #4565 on:** October 11, 2020, 08:06:22 PM »

Yes I tried to have a look at the code but I couldn't understand where and how the presets are made...I was searching in crop_rec.c

Is there some guidelines somewhere you could recommand?

Danne · « **Reply #4566 on:** October 11, 2020, 08:11:27 PM »

No time atm but check in 4k regs i 4k preset. Try and work the timers reg 6014 and 6008 and thlse nearby. Also exists in crop mode sub menu. You could pro ably achange from there. Generally speaking. 4k with more than 7 fps will be hard.

Francois_lune · « **Reply #4567 on:** October 11, 2020, 08:31:06 PM »

thanks, I already played on those reg directly on the cam. The fps increased but the preview and record went corrupted.
I need to record at around 6fps but somehow need the "Liveview clock" to be faster. I will keep searching and trying

Danne · « **Reply #4568 on:** October 11, 2020, 09:09:17 PM »

Liveview clock? You mean shutter? I mean. 6fps is 6fps or what am I missing? Do you refer to some kind of latency when starting to record?

Francois_lune · « **Reply #4569 on:** October 11, 2020, 09:36:44 PM »

yes, it maybe sounds confusing....

I am using my Eos-m with the rec_trigger function. A Super-8 projector is sending a half-shutter signal to the camera for each frame of the film, this allows the cam to record in sync with the projector.
I record at around 6fps, this is the speed of the projector.

But it seems that the frequency the camera is "checking" for the half-shutter signal is determinate by the fps of the preset (maybe related to the "Liveview clock" from what I read). It only check 5 times a second if the cam is set at 5fps, which give bad timing in the synchronisation. If a use a preset at 18fps or 24fps, the sync is perfect.

Danne · « **Reply #4570 on:** October 11, 2020, 09:41:48 PM »

Maybe stick to anamorphic modes

. Or 3k preset. Eos m really can´t push 4k to 18fps.

Francois_lune · « **Reply #4571 on:** October 11, 2020, 09:51:47 PM »

yes I know recording 4K @ 18fps would be too much for the cam.
I actually only need 4K @ 6fps but with the cam checking for the half-shutter signal 18 times/sec or more, this a really specific and weird need I agree

Danne · « **Reply #4572 on:** October 11, 2020, 10:00:40 PM »

Don´t think I can help you here. Maybe a1ex or g3gg0 but what happens when pushing timers too hard liveview freezes as you already experienced.

Kgncom · « **Reply #4573 on:** October 11, 2020, 10:17:49 PM »

I’m just checking in if anyone on this board has had success with the 240 SD overclock settings? It seems to function for me but I don’t see the benefit, tho I’m not on the 170Mbs cards, just the 90Mbs ones.

vstrglv · « **Reply #4574 on:** October 11, 2020, 10:31:35 PM »

Quote from: tmilardo on October 10, 2020, 06:20:32 AM

I think Mythic Cinema is referring to this video by Dave McKeegan. Proprietary SanDisk transfer mode at 3:38

My SanDisk 64GB Extreme Pro 95MB/s does not work at 192MHz (only 20Mb/s w/r). It works at 160Mb/s. But SanDisk 128GB Extreme Pro 170MB/s works at 192 Mhz (175/185Mb/s w/r). So I guess that SanDisk Extreme Pro 170MB/s a bit better than SanDisk Extreme Pro 95MB/s.

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Author Topic: Canon EOS M (Read 1169904 times)