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91
Software Dev / Re: Chronos V0.3.1 Beta
« Last post by foobar on October 01, 2018, 10:25:06 AM »
This is AWESOME!

Three crazy questions for you:

1. On your next camera can you have the main ram be based on intel Optane... Look how cheap these are:
https://amzn.to/2QlmOJ5

2. What can I do to speed up saving exports ? like will it be faster to save over Gig-E? Is ESATA working ?

3. I'm getting arouns 1fps saving to a USB 3.0 stick... does that sound right?

Hey Dan,

Right now the fastest saving method is via the eSATA port, which can typically sustain write speeds of about 60MB/s before the CPU runs out of speed, or about 25fps when saving raw at 1280x1024. To use this method you will need a 5V SATA drive (this includes almost all 2.5" drives), and an eSATA+power cable such as these available from Monoprice or Amazon

As for USB flash drives, I have quite a few cheap USB drives that exhibit absolutely terrible write performance (as low as 1fps as you have commented), as far as I can tell it seems to vary quite widely as to how well they perform under heavy write loads.
92
Chronos User Discussion / Re: Cheap SD cards class 10
« Last post by Bernard Rousset on October 01, 2018, 09:27:00 AM »
Hello Nikon1,

I have modified a little my post and added the specifications you can find on the site if you look at the photos. 100MB/s is already a very good performance, even for a class 10!
To my knowledge The current maximum is 300MB/s but there are very few cards that allow this

It is always difficult to be sure of the performances. Normally Class 10 will allow a minimum bite rate of 10 MB/s

The symbol U1 gives the same value while U3 goes to 30MB/s as a minimum.
Finally the other figures should be taken in consideration as xxxMB/s or xxxX.

Here the card is a U1 and it isn't written 100MB/s or 667X or 667x150= 100050kO/s. Hope it is true at least for reading, probably a little lower in writing.


Bye
Bernard
93
Software Dev / Re: Software Roadmap - 0.3.1, 0.4.x, etc.
« Last post by Bernard Rousset on October 01, 2018, 09:22:20 AM »
Hello,

You are very efficient and it is very nice to see how the software is getting better and better. I have bought one black and white (in fact grey) camera for scientific purpose. I do not want to make pretty photos and at the end I use a threshold to obtain only two colors black and white to define particules I will track though the frames. One. Anyway at first I need raw data and one Of the issues is the number of frames inside one record and also the time to save it. I will be very pleased to check the raw cinepack option.
I also wonder if a recording and saving in 8 bits (corresponding to low light) could be an option in the future ?

Have a nice day (or night depending on which side of the sea you are...)
Bernard
94
Chronos User Discussion / Re: Chronos 1.4 Footage Thread
« Last post by Buddlich on October 01, 2018, 09:19:13 AM »
Last video of my session from earlier this year...

More Fire :D

https://www.youtube.com/watch?v=P0LgUmvSJ9Y

Quite excited to make new videos with alle the new updates *____*
95
Chronos User Discussion / Re: Cheap SD cards class 10
« Last post by Nikon1 on October 01, 2018, 09:12:18 AM »
Those super-High-Capacity Micro-SDs are usualy pretty slow, especialy at that price point.
If the card would be fast, you Would find ratings somwhere on this website, but since i didnt fnd any info about card Speed there, you could expect it to be an rather slow Card.
i dont know, How that would affect Save-Times on the chronos, but for general Usage i can not recommend slow and Big cards like this, unless you plan to use it as an storage for an media-Player to write once (Will take some time to fill the card i guess) and Play multiple times.
Read Speed usualy are not super bad, but Write Speeds are Painfully slow most times with cards like this.
96
Chronos User Discussion / Cheap SD cards class 10
« Last post by Bernard Rousset on October 01, 2018, 08:59:23 AM »
Hello,

There are currently very cheap SD cards from China. I have already buy a card elsewhere so I will not use this web site, but maybe someone should be interested. I didn't know the real performances of that kind of cards but it is indicated class 10...

And it is specified 100MB/s or 667X  seems pretty good !!


https://www.joybuy.com/600240860.html?_cps=62103310.1251138147&utm_source=AD111&utm_medium=affiliate&utm_campaign=202779

Bye
Bernard
97
Software Dev / Re: Chronos V0.3.1 Beta
« Last post by Dan Kanes on October 01, 2018, 08:51:03 AM »
Added feedback:

saving TIFFs or CinemaDNG to USB Drive results in zero byte files, and the unprompted ejection of the USB media.

both seem to work fine for me to SD Card at the moment.
98
Software Dev / Re: Chronos V0.3.1 Beta
« Last post by Dan Kanes on September 30, 2018, 08:49:10 PM »
This is AWESOME!

Three crazy questions for you:

1. On your next camera can you have the main ram be based on intel Optane... Look how cheap these are:
https://amzn.to/2QlmOJ5

2. What can I do to speed up saving exports ? like will it be faster to save over Gig-E? Is ESATA working ?

3. I'm getting arouns 1fps saving to a USB 3.0 stick... does that sound right?
99
Software Dev / Re: Chronos V0.3.1 Beta
« Last post by NiNeff on September 29, 2018, 02:53:38 AM »
Here's a video of the translucent UI: https://youtu.be/CraeQdpt9ck
Also: the Demo mode could be enabled by default and just always add the "Play" button to the "Play" Screen, but rename it to "Loop". I had to fiddle around quite a bit to realize how the demo mode works and where to find it ;)
100
Software Dev / Re: Chronos V0.3.1 Beta
« Last post by NiNeff on September 29, 2018, 02:35:40 AM »
I've now had a chance to test the beta quickly.
Here are my first impresions:

 - Gernerally smooth updateprocess and it feels great to use.
 - YAY! HDMI!  :) :) :) :) Had no issues at all, recoring in different resolutions and playing back works fine!
 - maybe display the "saving" info also on the HDMI output if possible instead of a black screen
 - The Jog-Wheel select is a great addition, but it is really hard to see what is currently selected. Please make the highlight more pronounced, especially if a text-enty field is selected instead of a button, you can barely make it out.
 - The direction in which the UI elements are scrolled through with the Jog-Wheel differ from screen to screen and just feel inconsistent. If I turn the wheel to the right I'm expecting the "cursor" to go to the right in general.
 - Frame Overlay is a great addition!
 - The Preset-Resolutions are wierdly offset to the top
 - The font in the UI screens is not acually black but you can see the videofeed throuh them. I tried to take a picture of it but it really only is visible in motion. Maybe you set the alpha channel to zero by accident? It is very prominent on the Radioboxes, as they are a larger "hole" throuh the UI.
 - The Focus Aid almost always has as a solid line to the left of the screen. I guess this is inherent to it's design as the line dissapears if you're filming darker colors. This might be avoidable if you copy the left most lines to an invisible bufferzone bevore running the edge-detection. Probably not worth the hassle.
 - The whitebalace should not be set to Tungsten as default. Maybe use Average Daylight?
 - add a quit/canel button to all tabs of the Utils menu...
 - It would be really great to be able to click the wheel in the main menu to start/stop the recording!
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