Messages

16

Chronos User Discussion / Re: Filming in black and white with Chronos 1.4 color version

« on: July 29, 2020, 07:30:24 AM »

There is no in-camera option for this.
I cant speak for Krontech but personally I think there won't be such a feature anytime soon. – The Monochrome Version of the cam exists already and there's enough software solutions out there to convert color Video/images to monochrome if really needed.

17

Chronos User Discussion / Re: What is the sensor size of the 1.4 Monochrome version?

« on: July 15, 2020, 09:49:53 AM »

There's no size difference between the color and monochrome versions as far as I know.
The Datasheet says the dimensions are 8.45 x 6.76mm.

18

Chronos User Discussion / Re: Videos saved but gone

« on: July 09, 2020, 07:23:54 AM »

I ran into a similar problem today using an SD card. I think the issue was that I inadvertently had a "\" in the file name - what I assume is an unacceptable character. My story is the same, the camera acted like it saved normally, didn't throw a warning, and I didn't realize my mistake until I put the card into my computer and realized the file wasn't there. If there were a confirmation that the file saved, or a way to show files in the current folder, it would be very useful in my opinion. Thanks!

The file might still be there and recoverable using any system other than windows to look for it. If you don't want to install Linux or don't have a MAC use a live System booted from USB.

19

Software Dev / Re: Remote control AND data transfer

« on: July 06, 2020, 08:09:31 AM »

There are several options. You could use network storage / samba shares. You could use SSH access and then use the common linux tools or a python script. There has been one posted here on the forums, but it's quite outdated and from before we had a proper API. It might still work though.

20

Software Dev / Re: Chronos V0.5.0 Full Release

« on: June 30, 2020, 09:49:21 AM »

I just noticed that if the focus aid is turned on it will be visible in the 60fps live recording. Not a problem for me but good to know before you go recording a lot.

oh this is indeed important to know!

21

Chronos User Discussion / Re: SSD Cage for Chronos 1.4/2.1-HD - 3D-printable

« on: June 27, 2020, 08:53:09 AM »

I finally found the time to also print this SSD holder. I forgot to add supports for the print, but my printer handled it very well even without them.
I did some very quick tests an the SSD is about twice as fast as the SD card when saving DNG files, MP4 is about the same. Currently I have it formatted to FAT32, maybe I'll "upgrade" the filesystem to EXT3 or even EXT4 and see how it does then.
However reading EXT formatted Devices from Windows sucks


EDIT: I just saw the mounting-holes for the m2x10 screws, what are they for? As far as I can tell the holder works perfectly fine without those screws in there...

22

Software Dev / Re: Chronos V0.5.0 Full Release

« on: June 21, 2020, 05:40:54 AM »

so far I have run into three issues:
 - the "OK" button on the safely remove dialog can't be clicked (neither via the touchscreen, nor via click on the cogwheel)
 - I hear wierd noises (almost sounding like a fan) on the live video audio, even without  microphone being plugged in
 - I'm sofar unable to record audio – is there a special microphone needed? I tried a regular PC Headset without any amplification.

Hm, I cant find a problem in this dialog - in both windows (storage and play) it works well.
And I am also not able to record audio with the build in mic - there is only a loud hum in the clip.

It works for the SD Cards, but not for eSATA on my camera. I did not test USB.

23

Software Dev / Re: Chronos V0.5.0 Full Release

« on: June 21, 2020, 05:08:58 AM »

The analog inputs are separate from the audio inputs. These are the ones on the green multi-purpose connector, while the audio ones have their own 3,5 mm jacks.
The datasheet does not contain any information about the audio voltages as far as I know.

24

Software Dev / Re: Chronos V0.5.0 Full Release

« on: June 21, 2020, 12:46:34 AM »

Well, since the Camera has a built-in fan also, thats maybe where the Fan noises come from. I think the built-In microphone is pretty much unuseable for actuall high-Quality Audio for almost anything serious because of that, but could be a live-Saver to sync Any kind of High-Quality Stand-Alone Recorder or other Audio. If you only get fan noise, did you try to record something louder? maybe the fan was just much louder for the camera, than whatever Sound you tried to record because its a lot closer....

I'm not sure if the camera even has an internal microphone, I do not remember seing one last time I took it apart. But I might have overlooked it. The camera certainly has an (as of yet) unused speaker. Some confirmation from the Krontech guys would help here.

As for the external microphone, i am pretty sure, you need a powered microphone with an internal amplifier. As far, as i know, its just an analog input, which will basicaly just record a Voltage over time. And you just wont get a voltage from an standard-non-Powered Microphone. The best you could try to test the Audio-In without buying some Powered Microphone or an Mic-Amp would propably be to feed the camera Audio-In with an Audio-Out from a PC and play music or something to get an actuall voltage to the Camera-input. Would propably be smart to start a lower volume and turn up the audio if needed slowly.

I certainly could use a signal generator and feed it a pure sinewave for testing, but at this time I'm not willing to experiment with appling any voltage to the microphone jack without knowing the hardware limitations.

I dont know if thats implemented yet, but i think some kind of indicator of the input level of the Audio-In would propably be VERY helpfull to have for a lot of people. Most cameras with Audio-In have one. I dont know if there is space to put it on the main screen over the actuall video feed (i mean one Line/ Row of pixels for Left and one for right would maybe allready be enough), otherwise it could live in some Menu, where you would go to check audio. Still better than not having an indicator at all... Just an idea however, which could save someones day in video production.

This would indeed be very helpful!

25

Software Dev / Re: Chronos V0.5.0 Full Release

« on: June 20, 2020, 08:40:50 AM »

I also had a quick playaround.
I quite like the new dark design, and it seems to work well!
so far I have run into three issues:
 - the "OK" button on the safely remove dialog can't be clicked (neither via the touchscreen, nor via click on the cogwheel)
 - I hear wierd noises (almost sounding like a fan) on the live video audio, even without  microphone being plugged in
 - I'm sofar unable to record audio – is there a special microphone needed? I tried a regular PC Headset without any amplification.
 

26

Software Dev / Re: Chronos V0.5.0 Full Release

« on: June 18, 2020, 08:07:36 AM »

These things sound awesome!
Cant wait to test them this weekend!

27

Chronos User Discussion / Re: Chronos 1.4 Footage Thread

« on: June 14, 2020, 10:15:09 AM »

That moment when you realize that you might need a bigger camera! LOL.

Finally got it supersonic! 900mph..

One frame lit up like mini explosion. Just one single frame.

Bad lights, sorry. Need to film this in the sun. @17000 fps, this camera starves for light.

nice shot! now go even faster

28

Chronos User Discussion / Re: Nice people @ Krontech

« on: June 09, 2020, 06:11:27 AM »

I can wholeheartedly agree with you. These cameras are awesome!
Sure, there are still issues but that's to be expected!

THANK YOU CHRONTECH!

29

Software Dev / Re: Please synchronize frame numbers to trigger

« on: May 09, 2020, 01:38:13 PM »

did you try x11 forwarding over ssh? might work. You should also be able to install vnc servers your self from the debian repositories.

30

Software Dev / Re: Please synchronize frame numbers to trigger

« on: May 07, 2020, 10:32:43 PM »

Would it be possible to share the whole user interface of the camera via network, like in a VNC system?

This is already mostly possible using the webinterface and the latests camera software. Just point your browser to the cameras IP address. The video there is only about 1 FPS for preview, but a 60fps videostream is also available (view it with VLC for example)