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Messages - NiNeff

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31
Chronos User Discussion / Re: Extracting still images
« on: May 02, 2020, 09:06:24 AM »
The camera has a frame-sync output. if you really need to check it, hook an ozilloscope up to that. However I don't see any reason to no trust the camera.

32
Software Dev / Re: Chronos API Documentation
« on: May 01, 2020, 05:30:03 AM »
4.
You can check videoState here to see if the camera is currently saving:
https://github.com/krontech/pychronos#display-parameters
As I mentioned above, I'm using Matlab and I'm not preferring to change my project to python. Because I control another equipment from Matlab either. Is there any other request that I can send to camera server to get the status?
As i understand it you'd have to run the pychronos script on the camera itself, not externally. You should therefore be able to create a hook for your matlab-code to connect to.

33
Chronos User Discussion / Re: Max framerate limitations
« on: May 01, 2020, 05:23:55 AM »
ie, Is it possible to increase the framerate at a specific resolution by limiting the shutter to a smaller value?
no, this is not possible. You can think of the shutterspeed as a type of pulse width modulation. The pules themselves get longer or shorter, but the distance between the start of the pulses stays the same.
Your only option for faster framerates is to decrease the image resolution.

34
Chronos User Discussion / Re: Chronos 1.4 Footage Thread
« on: April 30, 2020, 07:56:01 AM »
First attempt at lightning. Very cloudy and rainy, but video has some detail. Can watch on youtube:


NICE!
I'm still waiting for a decent thunderstorm in my area to do some tests myself...

35
Chronos User Discussion / Re: What microSD for saving video?
« on: April 16, 2020, 09:27:36 AM »
The microSD Card (hidden in the bottom of the camera) is not for storage but for the cameras operating system only.
The one on the top is a regular SD Card slot. Use this one (or USB or SATA) for saving videos.
I have no trouble using 256GB cards there, bigger one should also work depending on the filesystem. See the manual or the forum posts around here for more details.

36
Software Dev / Re: Chronos V0.4.0 Beta - Debian and Networking
« on: April 13, 2020, 01:59:21 PM »
Hello nice people. Just a question: Downloading a beta version here to Europe takes hours for me. I am quite sure this is because the beta-software is hosted on a subdomain directly on the krontec server. I am sure, there is no copy located somewhere here in Europe, thus one really has to download directly from krontec. This is very slow, I suppose there is no dedicated contingent for such a small server. It takes 14 hours for me, and I really have the fastest connection here. Also, I know that these connections to oversea servers are almost like peer-to-peer. So: Anyone knowing a faster location too? Like github or so?

Thanks!
Are you using this official repo: http://debian.krontech.ca/builds/ ?
Here in Germany, my downloads from there vary a bit in speed but are generally in between 1-5 Mb/s so adequatly quick for the ~500MB filesize. They do however start slow and then increase in speed.

Up to 0.3.2 the files were actually available on github: https://github.com/krontech/chronos-updates/releases
As the 0.4 updates have a completely different structure its understandable they aren't there.
You also only have to download the whole thing once and can then use the on-camera update which then only downloads the required changes.

37
I'm not exactly sure what your issue is, there are plenty of trigger- and recording options, You might want to look into autorecord and autosave. Depending on your setup you might not even need external tools.

38
Software Dev / Re: Chronos V0.4.0 Beta - Debian and Networking
« on: April 07, 2020, 12:05:56 PM »
Stupid question: Can you keep various versions each on their own uSD card and just swap them around? For example to use the 40k FPS mode in version V0.3.2 then swap the card for V0.4.0 to try the various new features?
Yes, this is possible, just like swapping SD cards in a Raspberry Pi ;D

39
Chronos User Discussion / Re: transfer video to computer via code
« on: April 06, 2020, 06:59:30 AM »
Is it possible to control the camera from your phone using this adapter?
It might be possible. However it's way easier to just use the Wifi of your phone and a router/switch in the same network connected to the camera.

40
Chronos User Discussion / Re: Lighting question
« on: April 05, 2020, 08:11:09 AM »
Those are quite large modules (24 inches) with only 120W total, that's quite a low light-density for high-speed. Depending on your setup and conditions, it might still work or even be a good solution, but in general you might want to look into even more light packed into a smaller area. This however comes at the price of needing cooling which is noisy if you go with air.

I hade good results using a few of those modules: https://www.stratusleds.com/module
 if you have the space and want it really bright, you could even stack them together: https://www.stratusleds.com/ten

41
Software Dev / Re: Python based simple camera interface
« on: April 01, 2020, 08:31:27 AM »
For example, I will have 3 cameras and I need to launch them through the web interface at the same time, in 3 different tabs I can not do this, and through different triggers it is inconvenient
trigger only one and pass the signal throug triggering the others over the bnc port.

42
Software Dev / Re: Python based simple camera interface
« on: March 31, 2020, 01:16:31 PM »
the new web gui with the current beta software should have what you are looking for.

43
Software Dev / Re: Chronos V0.4.0 Beta - Debian and Networking
« on: March 31, 2020, 07:40:45 AM »
the update sounds awesome, I will test it sometime later this week!

44
Software Dev / Re: Chronos V0.4.0 Beta - Debian and Networking
« on: March 24, 2020, 10:02:21 AM »
After discussing the state of the new GUI with the rest of the software team, we have found that it isn't ready for serious use and that there are too many outstanding issues for us to be able to reasonably address with the size of team we have available. As such, we have decided that we will not be supporting this new GUI going forward, and we will instead make the original GUI our focus for the camera. Therefore, if you encounter bugs or missing features in the new GUI, we cannot promise that we will be able to fix them, and we encourage you to switch back to the original GUI if these issues become problematic.

We will keep the new GUI accessible via the software update tool for the time being as an experimental option, and we would be glad to receive any feedback about it and its features. If there are things that you like about the new GUI, we would like to try and migrate those features into the original GUI.

I apologize for getting your hopes up with the new look and feel and I hope that you will forgive me for releasing software that is incomplete and full of bugs.
That's quite sad, but you having to focus your ressources is very valid.
Features I'd like to see in the old GUI:
* Zoom
* Battery Charge indicator as changing icon
* python scripts (should still be possible over ssh anyway)
* stored file playback

45
Chronos User Discussion / Re: Post Chronos 2.1 clips here!
« on: March 16, 2020, 04:27:57 AM »
I've got a couple more, this time with much better lighting. Both of them deal with water (the water balloon one is my favorite.)

Water balloon explosions:
https://www.youtube.com/watch?v=bl94Xpa5ZEo

Water drops:
https://www.youtube.com/watch?v=O6o67n608xA
Wow! Those shots are amazing!

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