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Messages - skronstein

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31
Software Dev / Re: Chronos V0.3.2 full release
« on: February 18, 2020, 11:49:15 AM »
The 0.3.2 update is only for the 1.4.  Don't apply it to a 2.1.
Higher framerates will be available in a software update.

Hi, is there an ETA on an update for the 2.1?  And will a manual be available soon (currently using the 1.4 manual as a reference).

Tim

The update is schedule to be released before the end of this month, but the manual might take longer.

32
Chronos User Discussion / Re: new clueless 2.1 user
« on: February 14, 2020, 08:02:11 PM »
so i found a user manual for the 1.4 here: http://www.krontech.ca/wp-content/uploads/2019/03/Chronos-1.4-Beta-0.3.0-User-Manual-r1.pdf which was really helpful.  the 2.1 didn't come with a manual, but it came with a piece of paper with URL on it that linked to a page with 3 youtube videos, 2 of which didn't work (some kind of playback error) so i was totally clueless about how to do anything.

Here's the latest version of the 1.4 manual:
https://www.krontech.ca/wp-content/uploads/2019/11/Chronos-1.4-v0.3.2-User-Manual-rev2.pdf
We are working on a manual for the 2.1, but the only part that will change significantly between the two is the Record Rates and Times tables near the back of the manual.

Also, what page did that piece of paper link to?

33
Chronos User Discussion / Re: Upgrading the 1.4 to the 2.1
« on: February 14, 2020, 01:11:56 PM »
We are working on a plan for trade-ins. Details are not ready just yet. You can sign up for the newsletter here so you will know when we do have details ready: https://mailchi.mp/krontech.ca/chronosnewsletter
Do you have a detailed policy now?

Sorry, not yet. When we have info, we'll let you know via the newsletter.

34
Software Dev / Re: Chronos V0.3.2 full release
« on: February 14, 2020, 12:42:47 PM »
The 0.3.2 update is only for the 1.4.  Don't apply it to a 2.1.
Higher framerates will be available in a software update.

35
Chronos User Discussion / Re: Chronos 2.1 FPS>5406???
« on: February 14, 2020, 12:41:16 PM »
Martin is right, it will be fixed in a software update. It's schedule to be released before the end of this month.

36
Chronos User Discussion / Re: Post Chronos 2.1 clips here!
« on: February 13, 2020, 11:42:48 AM »
Gain test, just increased the gain as the sun was getting lower, leaving FPS, shutter angle and lens aperture on the same(ish) settings.

https://youtu.be/e7yymUQaXjw
Thanks!I dont know what is the Max Setting, but 24dB Still looks more than ok!Looking great.


I've never heard of dB gain when talking about video recording, what does this mean exactly?

They're talking about the analog gain, which is measured in db.  Increasing it increases the brightness of the image, but also makes it more noisy/grainy.

37
Chronos User Discussion / Re: Trigger Sources
« on: February 13, 2020, 11:23:28 AM »
No, we don't have a time frame for that feature yet.

38
Software Dev / Re: Updating the UI: Main Screen v2 + Dark Theme
« on: February 13, 2020, 11:16:52 AM »
The new UI is still quite buggy. When it's first available, we'll have an option to switch between the old and new UI while using the same SD card.    I think you'll be able to try it out with the next beta.

39
Chronos User Discussion / Re: New to Chronos 2.1 questions
« on: February 12, 2020, 07:20:50 PM »
HDMI output is 60fps at both resolutions.
I'll try to get some sample DNGs for you soon.

40
Chronos User Discussion / Re: 2.1 newbie questions
« on: February 12, 2020, 07:07:24 PM »
I either could use the Frame-Sync-Output, capture it with an Arduino and then trigger a flash with it, right? Or I could provide a trigger signal both for the camera and the flash, making the camera expose and the flash trigger.
Either one should work, but if you use the same signal to both expose the camera and trigger the flash, you don't need the arduino, and you can also use the Exposure Trigger or Shutter Gating trigger modes.

If each frame of the camera is triggered by an external source, would it be possible then to make the camera do a speed ramp?
Yes, you can do speed ramps with an external source.  With the Exposure Trigger or Shutter Gating set on the Trigger/IO settings screen, the camera will record a new frame with every pulse.  The difference between the two is that with Exposure Trigger, the sensor will expose for whatever the exposure time is set to on the camera, and with Shutter Gating, the exposure will last for as long as the signal is high.

41
Chronos User Discussion / Re: Chronos 2.1 lenses
« on: February 12, 2020, 04:17:02 PM »
Or can you just prove me, that this tiny c mount thread is more than enough to hold a big 1kg lens on it's own? :D

The Nikon 80-200mm f/2.8 is 1275g and is one of the lenses that tesla500 recommended above, so others over 1k would be ok too.

42
Chronos User Discussion / Re: Trigger from PC
« on: February 12, 2020, 01:23:39 PM »
That's correct, there won't be any network control until the 0.4 release.
Until then, you can use the Autorecord feature so the camera will start recording after booting, and after each successful save.
I don't know of a way to trigger the end of the recording from a laptop, but you could email info@krontech.ca and see if they can help you.

43
Chronos User Discussion / Re: transfer video to computer via code
« on: February 12, 2020, 01:20:18 PM »
1. OTG USB
2. Attached is a windows version of the script. It has the modifications posted by rvcFS, just above in reply # 28.

44
Software Dev / Re: ADC and Audio
« on: February 11, 2020, 01:36:21 PM »
Unfortunatel, the 2.1 doesn't quite have enough bandwidth to save 1080p 60fps continuously. It can only do about 55fps at 1080p.

45
Chronos User Discussion / Re: Question about triggering
« on: February 10, 2020, 06:59:45 PM »
You could enable Frame Sync output and use an oscilliscope to measure the time between the frame and the trigger. When Frame Sync Output is enabled, the camera will switch IO 1 and/or 2 to high while the image sensor is exposed, and low when it is not exposed.

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