Messages

46

General high-speed discussion / Re: Measuring Speed

« on: September 20, 2017, 05:09:44 AM »

https://www.amazon.com/Stripe-Black-White-Fabric-Yard/dp/B00QFHHK32/ref=pd_sbs_201_3?_encoding=UTF8&psc=1&refRID=80BQSVXYM05QWKWJXACC ?

 

That might be crazy enough to work.  I could cut off some of the black strips and make 1-foot segments to put below the 1-inch segments.  I wonder how accurate their 1" strips are...not that any of this is going to be super-precise anyway.

The important thing is that the striping is uniform, then you can simply adjust by measuring the exact width.

True, that is the big thing. One would need to have some in front of them and measure with a calipers to find the actual width.

47

Software Dev / Re: Software update V0.2

« on: September 20, 2017, 05:07:51 AM »

Not sure how that would work, since you still have a max 4 or 8 second record time. At what point would the camera decide, without your interaction, to stop recording and begin flushing the buffer to disk?

Seems that a remote RF trigger would be a good addition to your kit.

Oh, you would still trigger it like you normally do and then it would start writing to the SD card or whatever you have setup for storage.

You would have to know ahead of time how long it takes to write to the buffer, though once HDMI is working it will be easier to monitor.

Sorry for the confusion.

48

Chronos User Discussion / Re: [CLOSED] Pre-orders shipping yet?

« on: September 19, 2017, 10:39:04 PM »

They said they made several extra cameras to go beyond the current orders. So your wait should be just at the end of the existing orders in front of ya.

My deliver date is tomorrow.. cant wait..

Guess I need to finally decide on a sd now..

Well I have my SD card already here, just have to have some fast stuff to film so get some practice. Cat drinking water, Cat + laser pointer, hit-n-miss engine, gun stuff.

I'll also need to get some clarification on the "Do not expose the camera to molten metal". I presume they are talking physical contact and not simply close proximity.

49

Chronos User Discussion / Re: Best Save-As frame rate?

« on: September 19, 2017, 10:30:38 PM »

NoDak, re: freeware video editors:  I haven't had problems with OpenShot and 60 fps.  That's not to say I haven't had other problems with OpenShot, though (namely, losing about 10-15 frames at the end of rendered videos and some major stability problems while editing on the version in my OS distro's repository... win32 version seems to be more up to date fwiw).  I would really like to explore other apps, though.

Yea, it was years ago that I tried and had problems with it. You're talking to someone who uses Windows Movie Maker and is completely content with it. So I don't exactly have high standards beyond "Can the camera record at the resolution and framerate I want."

I've heard people defend 60 fps as better than 30 fps, complete with animations and such comparing the two, and I just can't tell the difference between 30 and 60. I can fool myself into thinking there is one if I stare at it long enough, but I walk away for 10 minutes and I'm back wondering where the difference is. So I'll just save in 30 and then speed up or slow down as needed in Movie Maker.

50

Software Dev / Re: Software update V0.2

« on: September 19, 2017, 10:20:44 PM »

I'm just used to cameras you do not edit on. You shoot it. It saves the hole thing. In point at record start. Out at record stop. Perhaps that can be a button we can X on, or X off.

Just reading through the threads and I came across this. I agree that it would be nice to have a "Point and Shoot" option like that. I'm sure I'll have a better idea how things work once I get my camera, but flash storage is cheap nowadays. Just have a couple flash cards to store everything. If you are doing a lot, just dump one card to a laptop while you film with the other.

Not having to edit before saving would be very important when accessing the camera between triggers is impractical. An example would be filming the sawmill at one of the nearby steam thresher reunion cutting the logs into boards. They may let me setup when the saw is shutdown, but they are NOT gonna let me anywhere close a running 5 foot sawblade every time I trigger the camera. This would probably be welcome in scientific environments as well.

Thanks again for the hard work you do.

51

General high-speed discussion / Re: Measuring Speed

« on: September 19, 2017, 09:45:14 PM »

https://www.amazon.com/Stripe-Black-White-Fabric-Yard/dp/B00QFHHK32/ref=pd_sbs_201_3?_encoding=UTF8&psc=1&refRID=80BQSVXYM05QWKWJXACC ?

 

That might be crazy enough to work.  I could cut off some of the black strips and make 1-foot segments to put below the 1-inch segments.  I wonder how accurate their 1" strips are...not that any of this is going to be super-precise anyway.

Lets add on a few more cars to this crazy train.

Get a length of this fabric.

Hem each end into a loop.

Get some black pipe and make a coat rack. Horizontal members slightly longer than the fabric. (Don't cheap out and use PVC, this thing will need some weight to keep the wind from making it into a kite. )

Put a piece of black pipe into the hems that is long enough to stick out each end.

Loop the hemmed fabric over the top and under the bottom of the coat rack. Stripes facing outward

Connect the two pieces of black pipe with bungie cords/tarp straps on the "back side" to keep the fabric tight.

Weigh the whole thing down with sandbags, cinder blocks, or whatever else you have available so it does not become a kite in the wind.

Film your high-speed stuff in front of your stripes.


For options, I also found some fabric with 2" stripes. It might show better. https://www.amazon.com/gp/product/B017AKWDP2/ref=ask_ql_qh_dp_hza

I couldn't find anything with 3"or 4" stripes that wasn't a stupid price.

52

Chronos User Discussion / Re: Pre-orders shipping yet?

« on: September 19, 2017, 12:57:25 PM »

So far we've shipped 118 Kickstarter rewards and 67 of 157 store/PO orders, for a total of 185 cameras shipped out of 275 orders. 90 cameras remain to be shipped.

We're doing about 20-30 per day, so expect mid next week for getting everything out.

I missed this update. Thank you for letting us know. I was expecting a much longer wait, since I only recently ordered mine.

53

General high-speed discussion / Re: Measuring Speed

« on: September 19, 2017, 12:52:26 PM »

Maybe you'd like http://www.measureittape.com or https://www.amazon.com/Beacon-Yellow-Measuring-2-Inch-10-Yard/dp/B00JBF6ASQ? (there are many similar ones on the same theme)

Those graduations wouldn't show up depending on the distance and resolution.

54

General high-speed discussion / Re: Measuring Speed

« on: September 19, 2017, 05:09:45 AM »

Just measure it and use duct tape. That's what Mythbusters and company have done on occasion. Nobody says it has to be cable TV grade. Just mark at one foot intervals and put the edge of the tape on that line. Then you'll have 12", 10", and 2" intervals. (Assuming you use 2" duct tape.)

55

Chronos User Discussion / Re: Best Save-As frame rate?

« on: September 18, 2017, 09:10:41 PM »

As someone who uses freeware video editors, I can say that some will puke on 60 fps, but work fine at 30 fps. Why? I have no idea. I'm not a programmer.

The last time I actually tried this was several years ago, so it may no longer be true now. I plan on saving at 30 FPS.

56

Chronos User Discussion / Re: Focus Aid

« on: September 18, 2017, 04:21:32 PM »

HDMI support will be a welcome addition. It will be so much easier to take video by oneself when you can have a remote monitor to look at and see if what you want is in frame. That is a significant problem with my current camera.

The one "bummer" moment for me was finding that the camera had HDMI but no NTSC/PAL output option. There are adapters though that one can rig up to convert so you can have a remote monitor some distance away. I'll make it work once the HDMI function is enabled.

Just curious about the function you describe. Is it a software zoom of sorts?

I do CCTV cameras for a living, so I'm used to focusing cameras on my homemade 2" monitor setup with whatever happens to be visible.

57

General high-speed discussion / Re: Measuring Speed

« on: September 18, 2017, 01:24:24 PM »

That is a good question. I know exactly what you are talking about, but have no idea what they are called.

I don't think something like that has a high enough volume to be ecenomic to mass produce. The high speed market is small and everyone will need different sizes and graduations for their particular project.

I made one out of a yardstick and tape years ago. My camera at the time wasn't up to the task so I never got far with it.

58

General high-speed discussion / Introducing myself, my plans for my Chronos, and some of my past videos

« on: September 18, 2017, 05:34:38 AM »

Good day,

It's a little sparse here, so I figure I'dd add some more content to this section of the forums.

I have been interested in high speed video for a long time. When buying my first camera of my own, that wasn't from the clearance section at Wal-Mart, I bought the Casio EX-ZR100 specifically because of its high speed video function. I put together some videos and put them on YouTube, but always felt that the Casio, while a good camera for the price, just wasn't good enough to do what I wanted to do.

A friend told me about the Chronos a year or so ago, don't remember exactly when. They were in on the Kickstarter, but I didn't have the money at that time to toss at something like that, though I found it quite interesting.

Fast forward to a couple weeks ago, he showed some friends and I that he had gotten with his Chronos.. I checked the site here and pulled the trigger on ordering one.

What do I plan to do with mine?

I'll be doing high-speed video of gun stuff of my own, both shooting and things being shot. There are some questions that I have about some of the PD .410 shotshell loads, among other things.

I have a couple gunsmith friends who I will do high-speed stuff for, troubleshooting guns, in exchange for the stuff they do for me.

I'll go to the RC plane/helo club and whatever other event is going on where high-speed video of someones stuff might be wanted. (The RC helo pilots will be ALL OVER this.) This will be good practice for me. Don't plan on charging people, but I'll take donations and reserve the right to put the video on YouTube.

There is a big university in town. Once I get some experience and word gets around a bit, I could help with or rent out the camera to them. I will obviously need to have some sort of contract demanding full replacement costs if the camera gets damaged. Has anyone written something up like that for their own use of the camera?

I'm not planning on making super amounts of money. Just looking to get some experience with the camera, a variety of footage, and help offset some of the cost of the camera.

So, here are some of the videos I have done with my Casio.

https://www.youtube.com/watch?v=1DQ2sY2mzaw Mini 14 High Speed

https://www.youtube.com/watch?v=yrL2oCZvsXQ Ruger GSR Rapid Fire and High Speed

https://www.youtube.com/watch?v=zNAASH4fxW0 Ruger PC-40 High Speed Video

https://www.youtube.com/watch?v=ncHHNQrJesc M-11 submachine gun with LAGE MAX-31 9mm Suomi upper. Function test. HD and High-Speed

https://www.youtube.com/watch?v=R-Nkep_0liE Swiss Schmidt Rubin Model M1911 HD and 240 fps

https://www.youtube.com/watch?v=PX9L-3Zs2-E Slide Fire AR-15 Stock - 240fps

https://www.youtube.com/watch?v=-AdnjP4Inxw Pallet Bonfire Side View - 240 fps

https://www.youtube.com/watch?v=N76tKVA0tm4 Pallet Bonfire - 240 fps