Recent Posts

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Chronos User Discussion / Re: Chronos 1.4 RAW conversion tool - pyraw2dng
« Last post by nik282000 on April 21, 2018, 07:44:29 PM »
Just wanted to chime in about RAW workflow.

I am using a 128GB USB drive formatted to EXT3 to save files from the camera and avoid the 4GB limit of FAT32, this works perfectly. To get the raw files onto a windows PC I use the software "ext2explore," it's a little clunky but it will get the job done. The pyraw2dng also works perfectly, even with raw files that were broken by the FAT32 limit and my own clumsiness.

To convert the DNG files to 'normal' images I am using Rawtherapee, an image editor meant to be an alternative to Adobe Lightroom. Rawtherapee allows for batch processing of files, so I make my adjustments to one frame and apply them to the whole set, I've done about 8000frames in one go with no problem. Once I have a folder full of PNGs I assemble them into a video file using VirtualDub, this allows you to set the final frame-rate of the video and export it as a raw or compressed AVI file.

All the tools used are free (as in beer) software and the only real limiting factor for any step in the process is time and processing power.
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Chronos User Discussion / Any kroner in china?
« Last post by cmqlyyy on April 21, 2018, 01:40:08 AM »
I just get my camera, anyone from shenzhen want to play it together. You can leave your wechat ;D
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I got it.
The fps in the save video only affects how fast/slow of the video plays, it does not affect the entire fps/quality of the video.The resolution affects the entire quality. That is why that have the same picture when played frame by frame.

It is also not necessary to save the video into a high fps. Saving the video at any fps, by changing the playing speed in the video player, it has the same effect.
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I saved the same video into two different fps: 6 and 60, so the latter one is 10 times faster than the former video.
However, when I play these two videos frame by frame, these two videos give me the same picture, as shown in the attached picture. Can anyone help to explain why this happens?

In addition, I notice we cannot increase the fps more than 60 when saving the recorded video. If there is any way to help us save at a higher fps?

Thank you in advance.
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Software Dev / Re: Raw video format
« Last post by Critters on April 18, 2018, 09:16:17 AM »
NVM, found the tool in the user discussion forum, worked like a charm!

The difference between encoded and RAW is staggering, great work!
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Chronos User Discussion / Re: Anyone from Berlin?
« Last post by feklee on April 18, 2018, 03:36:14 AM »
Schade, erst jetzt gesehen... noch näher als Baden-Baden wäre beinahe nicht gegangen. Bist Du noch dort? Ich bin derzeit in Elternzeit, und daher sehr flexibel.

Just came back to Berlin two days ago, but should be again in Baden-Baden perhaps in a few weeks. Very interested in seeing the camera!

In one week there is an event in Berlin, which I help organizing:

http://spektrumberlin.de/events/detail/metamatter-9-fire.html

It would be awesome to have a high speed camera there. Also, there is a small chance that there will be funds to buy one in the future.
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Software Dev / Re: Raw video format
« Last post by Critters on April 18, 2018, 12:38:15 AM »
I'm having issues installing your raw decoder. I get the following error when running setup.py

https://imgur.com/za297f8

Any help would be appreciated, thanks!
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Chronos User Discussion / Re: Anyone from Berlin?
« Last post by Fyodor on April 17, 2018, 10:59:27 AM »
Aber im Schwarzwald bin ich gerade für ein paar Tage, genauer gesagt in Baden-Baden. Also, wenn ich die Kamera mal sehen könnte, sie würde mich schon interessieren! Sind wir in der Nähe?

Schade, erst jetzt gesehen... noch näher als Baden-Baden wäre beinahe nicht gegangen. Bist Du noch dort? Ich bin derzeit in Elternzeit, und daher sehr flexibel.
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Chronos User Discussion / Re: Anyone from Berlin?
« Last post by NiNeff on April 17, 2018, 03:50:08 AM »
I'm not too far from Berlin (still a 3 hour drive at least though), but not in Germany for the next few months  ;)
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Chronos User Discussion / Re: 5V TTL triggering circuit
« Last post by tesla500 on April 17, 2018, 12:52:06 AM »
Hi pstest,

You can use anything that is capable of generating a TTL output, such as a DAQ card. It may be possible to use the control lines, such as RTS, CTS, etc on a serial port to do the same without buying an expensive card, you'd just need an appropriate cable and software to control those lines.

A software approach will be coming in the API release.

David
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