Recent Posts

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Software Dev / Re: Software update V0.2
« Last post by nik282000 on August 17, 2017, 02:06:50 AM »
File size and contents is like you said (Windows rounds down and reports it as being 68Mb).
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Chronos User Discussion / Re: Mounting Holes
« Last post by tesla500 on August 17, 2017, 12:40:44 AM »
Is that the Computar zoom lens you are using with this blast shield bracket?  Also, is that 1/4" acrylic over the lens?  Have you noticed any affect on the image quality shooting through the acrylic/polycarbonate?

Yes, it's designed to fit the Computar 12.5-75mm lens. It's 3/8" acrylic for the window and I have some smaller thin pieces as replaceable windows so the main piece doesn't get scratched by flying debris. There are some minor reflections under some conditions, and dust can sometimes be a problem, but if you keep it clean it works well.
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Software Dev / Re: Missing (weak) Green colours
« Last post by tesla500 on August 16, 2017, 11:51:50 PM »
Most color issues can be corrected in post using a color correction filter. It can be a steep learning curve, but there should be lots of video tutorials on Youtube.

There's a lot more than meets the eye in color processing in most cameras, and Chronos is no different. The main thing determining the output color is the Color Correction Matrix, which is a mathematical matrix multiply that is applied to the raw RGB data coming off the sensor. Since the color response of the whole system from camera to monitor differs from your eye's response quite a bit, there's a lot of wizardry going on to get good looking video on your monitor, and this takes a lot of work to optimize and get right. With the limited development time available so far, the color correction matrix is currently fixed to one optimized for low CRI white LEDs, which seems to work OK in most situations. You may actually get better results right now using cheap LED lighting. Better in-camera color is coming, with proper color temperature/illuminant spectrum selection.

David
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Software Dev / Re: Software update V0.2
« Last post by tesla500 on August 16, 2017, 11:37:52 PM »
Went to do the update today, when I tried to backup the calibration data it gave me the error "Error: tar command failed" with a Lexar 16Gb (LJD550-16G). The calibration file was created but it is only ~30Mb, trying again with a different USB drive created a calibration file that was ~60Mb and is populated by about 80 files. I'm not sure what it is about the Lexar but it is strange that the error is related to the tar archive creation and not read/write related.

Otherwise the update went fine, thanks!

A correctly saved calibration backup should be 70,073,856 bytes. The cal folder should have 12 files and one folder called factoryFPN. The factoryFPN folder should contain 80 files.
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Software Dev / Re: Software update V0.2
« Last post by nik282000 on August 16, 2017, 12:51:20 PM »
Went to do the update today, when I tried to backup the calibration data it gave me the error "Error: tar command failed" with a Lexar 16Gb (LJD550-16G). The calibration file was created but it is only ~30Mb, trying again with a different USB drive created a calibration file that was ~60Mb and is populated by about 80 files. I'm not sure what it is about the Lexar but it is strange that the error is related to the tar archive creation and not read/write related.

Otherwise the update went fine, thanks!
6
Chronos User Discussion / Re: Mounting Holes
« Last post by wilheldp on August 16, 2017, 10:36:35 AM »
Is that the Computar zoom lens you are using with this blast shield bracket?  Also, is that 1/4" acrylic over the lens?  Have you noticed any affect on the image quality shooting through the acrylic/polycarbonate?
7
Chronos User Discussion / Re: Aux IO connector
« Last post by tesla500 on August 16, 2017, 10:07:36 AM »
That is the correct plug. I don't know of any other connectors that will fit.
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Chronos User Discussion / Aux IO connector
« Last post by dgerrard on August 16, 2017, 09:57:30 AM »
I was hoping someone could confirm that this is the mating connector for the Aux IO port:
https://www.digikey.com/product-detail/en/phoenix-contact/1881383/277-1436-ND/308241
Is there other connectors being used?  Thanks,



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Chronos User Discussion / Re: Full user manual is out
« Last post by John DeLonghi on August 16, 2017, 09:29:02 AM »
Mechanical drawings! Yes!  Expect laser cut splash shield designs and dust covers in the next few days.
(Was planing this anyway, but now it makes things trivial.)

I could be interested as well...
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Chronos User Discussion / Re: Full user manual is out
« Last post by PaulBryanTV on August 16, 2017, 09:22:48 AM »
Mechanical drawings! Yes!  Expect laser cut splash shield designs and dust covers in the next few days.
(Was planing this anyway, but now it makes things trivial.)

This could be helpful for my channel and upcoming videos.
Explosions + Dust + Vapor = Bad for poor Chronos.
DM me? :)
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