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Messages - dpjpandone

General Development / Card spanning code
January 25, 2023, 01:30:51 AM
I'm trying to track down the repository that has card spanning ported to MLV lite. I realize this exists in Dannes super bleeding edge builds but there's so much going on it's hard for me to follow. For the most part I'm happy with the handling of MLV lite that the latest 2018 crop-rec iteration that Alex left off on.  I would just like to see an example of card spanning ported to MLV lite in its simplest form. Can anyone please  point me in the right direction?
you should probe c3 with a multimeter, you may find that shutter half-press pulls one of the pins on this port low. In this case use the "shutter half-press start record" feature and when you trigger recording via this feature you can detect the logic from C3 with a microcontroller and use it to start/stop your audio or whatever device you are attempting to sync to
Raw Video / Re: Black border in Black Magic
January 13, 2023, 09:20:47 PM
looks like you can zoom in until the black bars extend off the screen (disappear)
Raw Video / Re: Black border in Black Magic
January 13, 2023, 09:17:58 PM
Quote from: RTR Joe on January 09, 2023, 10:28:18 PM
Are you familiar with the Black Magic switcher by chance ? Where would I look on it ?
Thanks so much !

they make several, which one? 4 channel atem mini?
Quote from: soliloqueen on January 11, 2023, 08:53:02 AM
It's superb, actually. Probably the best mid-range big zoom I can recall Canon making in terms of general usability. It's got perfectly fine optics and, frankly, I prefer it to the equivalent L from the same time period because it's extremely easy to pull focus on compared to that one and some of the other ones where it can get finicky on the far end of the zoom. there are a few better overall zooms that are newer but they're $400 or more. the only issue with it is that it will fall when pointed downwards at intermediate zooms. at $80 in good condition, it's an insane deal. if you're looking to do movie shooting, though, the OIS is loud.

Thanks for the encouragement. I got it today! I'm impressed with the sharpness throughout the entire zoom range, and what a range! (almost 4x) I did not notice any noise from the OIS (perhaps it could be picked up by the camera's internal mic, but we always run boom and lavs through a field recorder) Since this is a full-frame lens I'd like to try it with a speedbooster on my EOSM one day!
Quote from: theBilalFakhouri on January 11, 2023, 10:02:11 PM

That's not related to SD overclocking, but to RAW video. When RAW video is activated (mlv_lite) it allocate all available memory, and once you higlight (or maybe click?) on "Free memory", an ML function which analysis free memory would run and would conflict somehow with RAW video, because of RAW video allocated all memory. I had this problem before.

OK thank you for explaining this. I noticed the ML menu reports "not exactly clean" patching when the module is activated, I thought there was some correlation here but I forgot to test for the same behavior with the module deactivated.  :-X
That's good to know! How do you like this lens? There is one available nearby for $80.00, should I snag it? I have a nice set of cinema lenses but no zoom for Full Frame.
Raw Video / Re: Black border in Black Magic
January 09, 2023, 10:12:39 PM
you can't get rid of the black box, you have to crop the hdmi feed with your streaming software to make it full screen
Quote from: Danne on January 08, 2023, 08:38:01 AM
14bit? How do you mean?

digital gain (ML options- image fine tuning) only affects preview in 10 or 12 bit. In 14-bit it has no effect
Quote from: soliloqueen on January 08, 2023, 09:49:07 PM

Canon 28-135mm IS USM

The lens is the issue. This design dates back to 1998 and the IS doesn't activate until half-shutter is pressed. Newer lenses (even the bottom of the line kit lens) have full-time IS (to support video modes)

if changing the behavior is very important to you It may be worth learning to compile from source code. Simulating button presses is one of the simplest coding tasks and a very good project for a beginner. The problem you'll run into is this might make your display go nuts if you are using other features that are triggered by half-shutter
General Chat / Re: JOELwindows7's TikTok videos
January 08, 2023, 06:54:13 AM
This guy is really excited about his camera. It's cute! :)
Quote from: Danne on January 08, 2023, 05:29:08 AM
Preview output is matched to meet the brightness when selecting 12bit and 10bit.

Where is this happening? mlv_lite? do you know the approximate line number or a keyword I can search?  My goal is to make 14bit preview behave the same way

setup_bit_depth_digital_gain ?
Share Your Videos / Re: Breast Cancer - Raw Video
January 08, 2023, 04:41:39 AM
Quote from: neofg on June 19, 2014, 01:10:01 PM


My favorite shot is the one in the second video with the snow globe effect. What lens did you use for the closeups?
Share Your Videos / "Prime time of your life" (70d MLV)
January 08, 2023, 04:36:18 AM
Not mine,

but very good, had to share:

Quote from: titaniumshell on January 07, 2023, 10:15:49 PM
Hi Danne
The x3 crop feature becomes unusable
in 1080 mode with a monitor connection.
The set button stops working and wants to open the ML menu.

you don't need this. if you want 3x crop just use the 2k preset, it's the same FOV, it's stable, and it works with the monitor. Even allows you to zoom with half-shutter while recording.
This was very good! which shots were dual ISO?
Share Your Videos / Re: 5.7K music video
January 08, 2023, 02:21:09 AM
Quote from: masc on November 20, 2020, 09:54:03 PM
One more video with more or less the same settings. 9 angles/shots à ~20GB.

masc, nice lighting! this is very well done 8)

btw your video at the top of this thread is "unavailable"
Share Your Videos / Re: 5.7K music video
January 08, 2023, 02:20:22 AM
Quote from: sahrenity on December 02, 2022, 08:49:56 AM
You can also check out this video production agency if you need a professional video clip. They also specialize in commercials and business presentations. I think it might be interesting and useful.

spammer ^^^^^
Quote from: Danne on December 30, 2022, 01:45:45 PM
Iso ranges and canon digic V sensors are worth a few hours digging.

Hey Danne, I noticed something quirky I thought you might have some insight:

Let me preface this by saying I understand that ML digital iso has no effect on raw video (although it is a nice feature for .h264)

When shooting raw, if the bit depth is set to 12bit, digital iso DOES affect preview on the LCD as well as an external monitor. I have tested to confirm this is only affecting the preview and not the recorded file. My question is does this happen for a reason? Is it a feature, a bug, or a side effect? I am currently using this as a feature because my (evolving) method for cleaner shadows is to overexpose by one stop in camera then pull down in post (similar to push/pull processing with film) setting the ML digital ISO to a negative value allows me to preview the shot as it would appear after a post-processing pull. I wonder if there is a way to duplicate this behavior for other bitdepths?
Quote from: theBilalFakhouri on January 03, 2023, 11:15:19 AM
sd_uhs.c is the source code, you will need other files to compile it "Makefile" and probably "README" too, example:

You can get them from the link or create them.

Or check the latest sd_uhs version (which include show CID info) here:

Overclocking - DIGIC 5 only

This include "Makefile" and updated "README".

works! thank you!

Excellent work man! 240mhz obtained 80.8MB/s write speed on 5D3 (play mode) with sandisk Extreme Pro 170MB/s which totally negates the need for CF cards! (for me) If I don't need this much speed (I typically just shoot 1080p 14-bit lossless @ less than 50MB/s) do you think reducing the clock speed to 160mhz would increase the longevity of the hardware? or is it simply there for backwards compatibility with older cards?

There is one little quirk I've managed to reproduce. "Free memory" in debug menu throws ERR70 every time
The issue is he want to press set for 3x with a monitor connected and the option is greyed out (disabled) when you connect a monitor. I think line 2493 in your crop_rec.c is causing this:

/*when enabling hdmi port turn off following*/
if (shamem_read(0xC0F14224) == 0x77F077F)
zoomaid = 0;
x3toggle = 0;

When i comment out x3toggle = 0; it allows the user to use 3x crop with monitor connected, but I didn't investigate further because the 2k preset accomplishes the same thing as 3x crop (for my needs) and I assumed you did this for stability
Raw Video / Re: High ISO = Low noise + Shadow detail
January 02, 2023, 11:33:39 PM
Important quotes from alex from thread:

-If highlight clipping is not an issue, and you have already maxed out aperture and exposure time, feel free to use ISO 6400. On 5D3's 1080p regular (non-crop) video mode, I'd expect it to be a bit cleaner than 3200 (by 0.5 stops) or 1600 (by 1.15 stops).

-all else being equal, higher ISO is going to give *lower* noise. That is, 1/30 f/1.4 ISO 1600 is going to be noisier than 1/30 f/1.4 ISO 3200 (by 0.65 stops). In the same way, 1/30 f/1.4 ISO 3200 is going to be noisier than 1/30 f/1.4 ISO 6400 (by 0.5 stops), assuming you will be normalizing the exposure in post to get comparable renderings.

So, as long as highlights are not clipped, increasing ISO from 1600 to 6400 is going to give lower noise in shadows - by 1.15 stops (yes, a little more than one full stop). Of course, this shadow improvement will cost you exactly 2 stops of highlights.

The above numbers apply to 5D3 in 1080p mode (3x3 binning). Things will be different in 1:1 crop mode (ISO 6400 no longer providing a noticeable benefit, but that's not applicable here), or on other cameras (where the DR figures may be slightly different).

Don't take my numbers from granted - feel free to do the following test, on the same static scene:
1) 1/30 f/1.4 ISO 1600 (this will be best in highlights)
2) 1/30 f/1.4 ISO 3200
3) 1/30 f/1.4 ISO 6400 (expecting to be best in shadows)
4) 1/15 f/1.4 ISO 1600 with FPS override (expecting shadows as good as #3 and highlights as good as #2)

Quotes from Danne:

-iso 100 on 5diii and without exposing to the right the shadows will crack sooner than iso 800.

- You can do a simple test by shooting two matched files with iso 100 and 800. Just change shutter speed to match exposure. Then lift shadows in post. Iso 100 works best when minimum shadowlifting is needed. Then you get noiseless iso 100. Otherwise iso 400 and higher will reduce shadow issues.

Quote from: theBilalFakhouri on September 07, 2022, 05:26:20 PM
Edit 20/9/2022:

Latest sd_uhs which works perfectly on 5D3 / EOS M / 100D and other DIGIC 5 models:

where is the source?

dpjpandone@MSI:/mnt/d/DEVELOPMENT/Crop_Rec4kMAIN/modules/sd_uhs$ make
make: *** No targets specified and no makefile found.  Stop.

only .c file and .mo was in the zip
I think I have found the solution. applying negative gain in the ML menu (a feature designed for cleaner shadows in .h264 files) does not affect the ISO on the recorded MLV file, The MLV file captures full stops of analog gain, so applying negative gain effectively pulls the preview back down to normal exposure. from -0.1 to -1.0 the preview is lowered by one full stop. When you hit -1.5 it is lowered 2 stops. I re-iterate this ONLY AFFECTS PREVIEW and does not alter the ISO recorded in the raw file. The MLV raw file will always record full-stop CANON ISO settings.
Raw Video / High ISO = Low noise + Shadow detail
December 31, 2022, 08:37:36 PM
I'm doing research on this topic, this first post is a temporary placeholder where I will link to relevant threads and articles on the subject. Once I have gathered as much data as possible I will replace with a properly formatted essay.