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Messages - skronstein

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Chronos User Discussion / Re: transfer video to computer via code
« on: August 19, 2019, 04:03:10 PM »
serial should just be removed from the script.  Open the script in a text editor and change the line containing the world 'serial' to:
copy_video(cam, localdir)

Chronos User Discussion / Re: transfer video to computer via code
« on: August 16, 2019, 06:00:22 PM »
The script is trying to connect to connect to '' instead of ''.
Was your script edited to use 21 instead of 1 for the last number?

Chronos User Discussion / Re: 2x2 binning on Chronos 1.4.
« on: August 16, 2019, 05:08:06 PM »
No, sorry, I don't have any release date info.

Could you post samples of your DNG files so that we can compare them?

Chronos User Discussion / Re: transfer video to computer via code
« on: August 14, 2019, 11:53:38 AM »
What happens when you try to run the script?

Chronos User Discussion / Re: transfer video to computer via code
« on: August 13, 2019, 12:10:05 PM »
The error basically means the connection to the camera failed on port 22.

Can you try to use ssh to connect to the camera? PuTTY is a great windows tool for that. Or use BASH directly if you're on windows 10.
From there on troubleshooting is much easier.
Good day. I had the same problem as a user above. Now I connected to camera via SSH as a root. What can/should I do now in order to enable the script provided above to work? (The main task for me is to get the images/videos from the camera when I need via python script, if this information is necessary)

Run the script on the computer, not the camera. You don't have to log in via SSH separately.  The script will do that for you.
Logging in via ssh might be useful as a debugging step if the script isn't working.

Chronos User Discussion / Re: 2x2 binning on Chronos 1.4.
« on: August 12, 2019, 05:06:08 PM »
It is supported by the sensor, but not in the camera's software yet. As far as I know, it will be in a future software version.
Once it is supported, cameras with monochrome sensors will be able to turn binning on or off in software.
To use 2x2 binning on a color sensor, the LUX330 would be needed; it can't just be changed in software because of the larger pixel size on the color filter.

Software Dev / Re: Chronos V0.3.2-RC1
« on: August 09, 2019, 03:32:41 PM »
Thanks for finding the bug.
I just tried to reproduce it on my camera, and it actually happened with all the save formats that I tried, not just DNG. Also, the frame was copied from whichever frame is currently visible, not necessarily from the end of the selected region.

Software Dev / Re: Chronos V0.3.2-RC1
« on: August 02, 2019, 01:11:42 PM »
Thanks for the feedback, guys. We've been able to reproduce both the focus peaking lag and the issue with reverting settings and are working on fixes.
About reverting settings - it's actually OK to shut down the camera right when the shutting down screen is displayed - no need to wait.

General high-speed discussion / Re: Speed Calculations
« on: July 29, 2019, 08:38:38 AM »
For the calculation of the speed accurately. First, take two successive images from your video. you can use "free video to jpg converter" to extract every frame.
The Chronos can already safe individual frames, no need for external  tools here. However a firmware upgrade might be required to do this.

Yes. Also as a TIFF Format, but I found it less quality than h.254

In what way was the quality lower for TIFF? The TIFF images are uncompressed, so they should be higher quality.

Software Dev / Re: Chronos V0.3.2-RC1
« on: July 26, 2019, 01:38:49 AM »
Great News!

Do we have to factory calibrate after applying this update or just use it as is?  Will test this weekend. Thank you!

No, it's not necessary to factory calibrate after the update.  That feature really just does black cal for all of the standard resolutions.

Software Dev / Chronos V0.3.2-RC1
« on: July 25, 2019, 09:42:07 PM »
Here is Chronos 1.4 Software V0.3.2-RC1. Do not use this software version if you are capturing something that is not easily replicated.

   ++                                  ++
   |   Chronos V0.3.2 RC1 Changelog     |
   ++                                  ++

Notable Changes:
 - Automatic ADC calibration during black calibration, which should reduce column banding across a wider temperature range.
 - Add a storage tab to the util menu to view, eject and format the attached storage devices.
 - Speed boost at most resolutions, with a top speed of 1069fps at 1280x1024, and 40420fps at 320x96.
 - Configurable automated power-on and off depending on the AC adaptor status.
 - Option to disable the ring buffer when in segmented recording mode.

 - Factory black calibration is now user accessible from the Factory tab of the util window.
 - The software update button has been moved to the storage tab of the util window.
 - Shipping mode to disable power-on by battery until an AC adaptor is attached.
 - Add a watchdog to reboot the camera in case of a power-on boot failure.
 - Display descriptive error strings instead of number on failure.

Fixed Bugs:
 - Gated burst record mode may lock up after several trigger edges.
 - Gated burst record mode unreliable when trigger debounce is enabled
 - Memory leak in the M3 video coprocessors which could lead to a crash after lots of H.264 encoding.
 - Ignore video which was recorded during zero-time black calibration (which happens after changing resolution).
 - Stuttering issue on the playback window on new production LCD modules.
 - Fixed deadlock in camera when restoring user settings from external media.

Fixed since V0.3.2-beta-6:
 - Changes to focus aid or exposure aid (zebra stripes) would have no effect until resolution is changed.
 - Changes to exposure may be overwritten during black calibration.
 - Bad image quality at 336x120 resolution
 - Util window, storage tab - bottom of text cut off if device has multiple partitions
 - Factory black cal (black cal all resolutions) would get overridden by old user black cal, if a user had done their own black cal, even before.

Known Issues:
 - On the save file settings window, the bitrate as listed above the resolution may be lower than the actual bitrate, if Saved File Framerate is lower than 60fps

Updating Your Camera
 - Extract the `.zip` file into the root directory of a FAT32 formatted USB drive.
 - Turn on your camera and insert the USB drive into the USB/eSATA combo port, not the one labeled 'OTG'.
 - From the main window, tap the `Util` button to open the utility window.
 - As a precaution, tap the `Backup Calibration Data` button on the utility window before starting the update.
    - When the backup is completed, a pop-up window will be displayed.
    - Tap the `Done` button to close the pop-up window.
 - From the utility window, tap the `Apply Software Update` button to begin the software update.
    - A warning message will be displayed, tap the `Yes` button to confirm and begin the update.
    - If a pop-up that says 'No software update found' is displayed, even when a USB stick containing the update in the correct location is connected, reboot the camera and try again.
 - During the update, the screen will go blank and an `Applying Update` message will be displayed.
 - After approximately 60 seconds, the update will be complete and the camera will restart.

What's your configuration in Trigger/IO Settings? To use the BNC as a trigger, you should have one of the pullups enabled for IO 1, and the trigger should be set to Record End Trigger.

That's right, in Normal record mode, Shutter Gating should work fine to control exposure time and frame rate.  I will clarify this in the next iteration of the manual.

Chronos User Discussion / Re: New to Chronos 2.1 questions
« on: June 24, 2019, 03:30:32 PM »
When starting a new recording, the previous one is replaced.

However, you can use the Segmented recording mode, where a fraction of the total buffer is allocated for a each segment. Each time the camera detects a trigger, a new segment is recorded. You can set any number of segments you like. A camera with twice the amount of RAM can record twice the number of segments, or segments twice as long.

The other exotic record mode is Gated Burst, where the only frames that are stored in RAM are the ones while the trigger is pressed, and shortly before it is pressed (called prerecord time, which is also configurable)

Currently, only external triggers can be used, meaning a pushbutton trigger or a signal generator.  We plan to have the red shutter button on the top of the camera to be usable for these modes too.

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