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Messages - NoDak

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Chronos User Discussion / Re: 12 Volt power adapter.
« on: October 01, 2017, 12:56:11 PM »
I got the power adapter I linked in my original post and I can confirm that it works great with the Chronos. A nice unit with plenty of cord.

Chronos User Discussion / Re: Let's talk lighting
« on: October 01, 2017, 01:21:39 AM »
Anyone found a good cheap 110v AC constant current driver? The killer expensive part is the 110V to 12 or 24 V PSU.  :-\

Chronos User Discussion / Re: Let's talk lighting
« on: September 27, 2017, 10:29:36 PM »
Ah, the eBay ones don't have screw terminals.

In the long run it may be better to buy the ones you link with screw terminals. Makes calibration and such easy, as does replacing modules should the need arise.

Chronos User Discussion / Re: Let's talk lighting
« on: September 27, 2017, 07:34:59 PM »
The boards I bought from Amazon, similar to sam's, have a constant voltage dial and a peak current dial. So yes, constant output voltage regardless of input.

Nice, good to have options.

I see that you solder the driver directly to the module. (Not a problem, I can solder.) How do you go about calibrating them? Do you calibrate the voltage before you connect anything, then connect it to the module with alligator clips, calibrate the amperage with a multi-meter, solder it all down, then Loc-tite the screws in place? Or is there another way?

Chronos User Discussion / Re: Let's talk lighting
« on: September 27, 2017, 06:25:22 PM »
Inspired by tesla500, I rigged up lights with the Chanzon 100W led modules ( here now, but this link moves around...).

I drive each of them with one of these constant current boost converters each.  This is probably overkill, but these are so cheap...  I mount the LEDs to the front of a cpu water cooling block, and the drivers to the back.  Right now I'm driving 3x100W LEDs, a water pump, and fan for the radiator with a 500W ATX power supply. 

Overall, this is ~25k lumens for ~$100.  It stays plenty cool, and works well, but I think there's lots of room for improvement.  And of course, now that my camera has arrived, it doesn't seem bright enough any more!

Hmmmmmmmmm. I wonder if we still have that crapload of old Socket 478 heatsinks at work. :D I'm sure the boss would be okay with me getting rid of them.

Okay, so one heat-sink per module.

I use the drivers that you linked.

I found a US-ish seller of those modules on eBay.

Should I go with White or Cool white? 6,000k-6,500k vs 10,000k-15,000k? Yea it's $20 more than the aliexpress one, buuuuuut I'll prefer to get a US reseller.

Power supply, hmmmm. We have a bunch of old 24 VAC CCTV power supplies. Things are moving to PoE IP cameras, so we probably won't ever use them. I think they are 8 amps at 24 volts. Would need to add a bridge rectifier for sure.

Would I need to add a capacitor for the ripple this would create or do I need to not be a cheap-ass and get a proper switching PSU?

24 volt would probably be better than 12v to reduce the amperage required in the wiring.

I could just use the car battery I have for starting my generator and only switch on all the LEDs when I am about to trigger the camera. :-\

Do those drivers output the same voltage regardless of input voltage? Or do I need to have it always powered by 12v or 24v? I am guessing it's one or the other.

80,000 Lumens and probably blowing breakers.  ;D Even better, since it will be one module per heat-sink means that I can aim and mount them individually

Chronos User Discussion / Re: Thanks Krontech
« on: September 25, 2017, 04:41:25 PM »
Seriously Awesome camera at a great price. You guys did good A+. Now time to go shoot a piano with a Cannon. Video of that will be up soon.
How I read this in my mind: "What is so special about shooting a piano with a Canon? I mean they've put out some good cameras but I... Ohhhhhhhhh, a CANNON. :o "

As someone whose mother is a music teacher, please use one that is damaged beyond repair.

Chronos User Discussion / Re: 12 Volt power adapter.
« on: September 24, 2017, 09:54:56 PM »
OOOO, That is a nice unit there. That will be a good option for some.

My ghetto camper is already setup with cigarette lighter electrical, with ample extension cables and such available to borrow, so I'll still be going with the adapter I found.

At my work, I have gotten a number of UPS units, some quite nice, that are perfectly good after a battery swap. Most nowadays are black start capable. Running battery DC through an inverter, only to step it back down to DC, makes me cringe when I think about conversion losses. Buuuuuut, if you got it for free/low cost and are okay with carting it about, I'm sure we will see some people doing that too.

Hopefully other people, who have their own solutions, will chime in. Give people as many options as possible for their own particular needs.

Chronos User Discussion / Re: Chronos 1.4 Footage Thread
« on: September 24, 2017, 08:16:59 PM »
My Auto5 Shotgun at 1000 fps:
Oh nice. Long-recoil actions are always fun to see in high-speed.

Chronos User Discussion / 12 Volt power adapter.
« on: September 24, 2017, 08:00:26 PM »
Well my order has moved to the "Processing" phase and I am now thinking more and more about accessories I will need.

One thing that I foresee is needing an external battery. I plan on not relying on the internal battery except to just keep the camera powered on when moving things about.

I know that some people have used an inverter plugged into their car and ran an extension cord to the camera. While that works in many situations, there are going to be plenty of times this is not practical.

The obvious solution, since the Chronos uses a standard 5.5/2.5mm power plug, is to find and buy an appropriate laptop car power supply. Then you can use whatever 12 volt battery you have available by connecting a car plug to the battery. (In my case, a Power Wheels 12v battery I got NIB at a garage sale for $5.)

Of course, the problem is that most laptop car chargers only give make and model of laptop. They don't explicitly state power plug size. I did some research and I think I have found something at a good price.

I have searched the models listed and everything I find says this a 5.5/2.5mm plug. The right-angle tip was something I specifically wanted, as I think most people will want, to reduce strain on the connector. 65 watts, plenty of power.

Then to attach it to whatever 12v battery you have, you just use one of these alligator clip thingies. (Don't want to assume that everyone has or has used one, so figure I better link to a good one.)

I'll toss one of these into my Amazon cart for the next order I make from them. I will report in once I have my camera so people can be absolutely sure that this works.

Please let me know if anyone sees any problems. I figure I can't be the only person interested in something like this.

Chronos User Discussion / Re: What will the HDMI output resolution be?
« on: September 23, 2017, 10:45:11 PM »
If I may piggyback off your question.

How much +5v current will be available on Pin 18 of the HDMI connector?

Chronos User Discussion / Re: [CLOSED] Pre-orders shipping yet?
« on: September 23, 2017, 06:21:36 AM »
Got my Tracking number and I was order 280
I'm 314 and I got an email yesterday saying my order is being processed.  ;D

Chronos User Discussion / Re: [CLOSED] Pre-orders shipping yet?
« on: September 21, 2017, 11:03:30 AM »
Any updates on how shipping is progressing?
I feel like it's watching water boil. The more you watch the longer it seems to take.

I know that I'm pretty much the last one to order a camera, so I'll get mine when everyone else does.

Chronos User Discussion / Re: [CLOSED] Pre-orders shipping yet?
« on: September 21, 2017, 05:26:30 AM »
"Do not expose to molten metal" refers to getting molten metal on or in the camera. Added this to the manual after a certain user broke their camera by getting molten metal inside after they built a liquid Pewter squirtgun.
Oh geese, I thought that warning was someone just being fun when writing the manual. Did not know that it was actually something that happened.

Chronos User Discussion / Re: [CLOSED] Pre-orders shipping yet?
« on: September 20, 2017, 05:01:12 PM »
Expose I would assume is do not let it touch it. Also there is a lot of heat generated by molten metal and that can cause some issues with Heat. So I wouldnt dunk it in there....Although.... would be a cool video! Someone has to try it hahahaha

Yea. That's my assumption. Just had to be the smartie that asks for clarification on such a question.

I do my own bullet casting and there is blacksmithing at the steam thresher reunion.

Chronos User Discussion / Re: First Use!
« on: September 20, 2017, 04:58:23 PM »
Interesting choice of first thing to shoot. Very interesting to watch.

What resolution and framerate were you using?

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