Messages

166

Chronos User Discussion / Re: Need a tutorial on shutter speed

« on: September 09, 2017, 11:31:56 AM »

The main screen displays the shutter speed in percent of fully open, so 2x or 180 degrees would be 50% shutter. 100% would be equivalent to 360 degrees. To convert degrees to percent, divide by 3.6

Would people prefer degrees over percent? An option for either?

167

Chronos User Discussion / Re: Got my tracking number

« on: September 08, 2017, 08:22:37 PM »

We have about 10 kickstarter rewards left to ship, should go out Monday.

168

Chronos User Discussion / Re: trigger cable for IO1 (BNC)

« on: September 05, 2017, 01:32:00 PM »

Hi JS,

Yes. To make a trigger cable, you can use any BNC cable, impedance doesn't matter in this case. Solder a normally open switch on the end.

David

169

Chronos User Discussion / Re: Last round?? of Kickstarter cameras are going out.

« on: August 31, 2017, 08:30:40 PM »

Just started shipping, see the update here

170

Chronos User Discussion / Shipping has begun on the main batch!

« on: August 31, 2017, 08:28:04 PM »

After many delays, setbacks and trials, we're excited to announce cameras are now finally shipping!

See the update on Kickstarter

Thanks everyone for your patience!

171

Chronos User Discussion / Re: Mounting Holes

« 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.

172

Software Dev / Re: Missing (weak) Green colours

« 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

173

Software Dev / Re: Software update V0.2

« 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.

174

Chronos User Discussion / Re: Aux IO connector

« on: August 16, 2017, 10:07:36 AM »

That is the correct plug. I don't know of any other connectors that will fit.

175

Chronos User Discussion / Full user manual is out

« on: August 14, 2017, 10:43:33 PM »

The full user manual for software V0.2 is now out, go find it at the resources page

As always, comments/suggestions are appreciated.

David

176

Chronos User Discussion / Re: New Pre-orders

« on: August 13, 2017, 11:31:22 PM »

Total Kickstarter sales are 117 cameras (including 24 Earlybird units), and so far there have been 128 preorders via the online store, for 245 total cameras.

The current batch in production now is 280 cameras plus some spare parts for service/warranty purposes. There are currently 70 unsold cameras for stock which should last a few months, unless there's a sudden increase in sales once they're in stock, which to be fair is quite likely.

David

177

Chronos User Discussion / Re: Coloured Stripe Problem

« on: August 13, 2017, 12:40:26 PM »

I've seen that on some units when cold, it's a problem with signal timing, and there's a fix in the next coming software update. As a workaround, let the camera warm up fully, and if needed you can partially tape up the fan if it's cold outside. You don't have to worry about the camera overheating, as long as the case stays below 50C you're fine, and it has a thermal shutdown if it for some reason gets too hot.

Were you using the camera in cold weather?

David

178

Chronos User Discussion / Re: New Pre-orders

« on: August 09, 2017, 01:30:45 AM »

That's still accurate assuming no suppliers delay shipping parts to us. Assembly will be starting tomorrow, and the only thing left to arrive are the main boards which are scheduled to be in around the 16th. Once those are in we can fully assemble and start to ship cameras.

If you need a camera for a short time, Aimed Research has one available for rental. We normally have them available for rental too but we're short on cameras until the new batch is done.

It's still early to be thinking of new models, once the craziness of the initial batch and delivery dies down we'll be starting on the next faster camera, as well as software updates for Chronos 1.4 of course.

179

Chronos User Discussion / Re: Triggering two cameras

« on: August 01, 2017, 04:39:00 PM »

Yes, you can do this with as many cameras as you want. If you're triggering more than about 4, I'd recommend turning off the IO pullups on all but one, to avoid having too much pullup current at the switch.

They will be synchronized to within one frame this way.

180

Software Dev / Re: Missing (weak) Green colours

« on: July 27, 2017, 11:35:38 AM »

Hi A.,

Could you post an image to show the issue? If you have a comparison with an image with proper color that would help as well.

David