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-   -   High Definition with Elphel model 333 camera (https://www.dvinfo.net/forum/apertus-open-source-cinema-project/63677-high-definition-elphel-model-333-camera.html)

Wayne Morellini May 7th, 2006 03:51 PM

Andrey,

I have some good news, that I will be posting sometime over in my digital cinema technical thread.

I have reviewed the sensor information and things have changed quiet a bit. Kodak is supposed to have some 100K -ev well sensor chip, so I am interested in those Kodak options you mentioned.

Micron has got superwideVGA chip with multislope, so I am interested if any of their chips that you use in future have this excellent feature.

But the biggie, apart from some behinds the scenes doc I have on a new sensor people have been eagerly waiting for for years that is quiet an excellent choice for you (though not in price). Is that I have found a cheap Russian, alternative to the x3 Foveon. I will email you privately as I want some space to negotiate with them first, without non business/electronics professional people rushing them for information.


Thanks

Wayne.

Andrey Filippov May 10th, 2006 01:30 AM

Quote:

Originally Posted by Wayne Morellini
Andrey,

I have some good news, that I will be posting sometime over in my digital cinema technical thread.

Wayne,

sorry for late reply - I'm just back from the linuxtag.org. I really appreciate information on the new sensors but I can not work with them myself (at least in near future) - there are so many current projects. So right now I can just provide some help to somebody who can work on them.

Andrey

Juan M. M. Fiebelkorn May 10th, 2006 01:50 AM

Funny you dismissed me like more than a year ago when I asked you about using your camera for High Definition stuff.
Now I see you here....

Andrey Filippov May 11th, 2006 04:48 PM

Quote:

Originally Posted by Juan M. M. Fiebelkorn
Funny you dismissed me like more than a year ago when I asked you about using your camera for High Definition stuff.
Now I see you here....

It is not my speciality :-) , and this application of our cameras is community-driven.

Wayne Morellini May 11th, 2006 05:50 PM

Quote:

Originally Posted by Andrey Filippov
Wayne,

sorry for late reply - I'm just back from the linuxtag.org. I really appreciate information on the new sensors but I can not work with them myself (at least in near future) - there are so many current projects. So right now I can just provide some help to somebody who can work on them.

Andrey

That's OK, but I know that you work with micron and mentioned Kodaks. Do any of the Microns that you are using, are planing to, use the dual/multislope. You were talking about the Kodak, are you planning on using the 100K -ev ones, or the 65K -ev ones?

Thanks

Wayne.

Donnie Wagner May 24th, 2006 09:09 AM

333
 
Quote:

Originally Posted by Oscar Spier
Forrest (and others)

I got my camera a few days ago. I'm not able to do tests this week because I'm out of the country, but I'll follow this thread and post my results when I'm back.

Oscar,
Any luck using this camera???

Oscar Spierenburg May 24th, 2006 10:30 AM

I'm sorry it took so long.... I had a lot of trouble finding a way to capture the footage. I now have figured out a stupid work around, so that's OK for now.

I had luck finding a very (as far as I can tell from my first tests) good C - mount lens on an 'antique' 16mm film camera. here are some tests shots I made with the camera and the lens:
http://bosshogg.logjam.com/oscar/Elphel/rez.jpeg
http://bosshogg.logjam.com/oscar/Elphel/rose.jpg
http://bosshogg.logjam.com/oscar/Elphel/rose1.jpg
http://bosshogg.logjam.com/oscar/Elp...-artifact).jpg

Two of the shots with the rose (shot through a dirty window) are toughed up in AE. One of them 'rose(de-artifact) ' has some enhancements (de-artifact and 0,5 box-blur) to reduce the compression distortions of the Elphel camera.

One of the big problems I still have is the rolling shutter effect on quick moves.

I'm also working on the wax adapter.

Riley Harmon May 24th, 2006 11:03 AM

do a green screen test to see how the color compression is

Forrest Schultz May 24th, 2006 02:26 PM

Oscar, those rose grabs where at about 1700 by 800. what fps where you able to capture that at? or where they more for still test purposes.

Oscar Spierenburg May 24th, 2006 03:55 PM

No, it's a real frame-grab from a clip I shot at 24 fps (1728 x 896)
I'm very glad and surprised that my 1.5 GHZ Intel celeron (!) laptop can capture at that resolution. When I make a battery pack of some sort for the camera I'm very mobile already...only one cable between the laptop and the camera.
How are you doing with you Elphel Forrest?

Wayne Morellini May 24th, 2006 10:28 PM

Theres no surprise, you are getting from 30-70mbs (from what I seem to understand) which is upto around 9MBytes second, next to nothing and a number of drives can handle that now days.

Donnie Wagner May 25th, 2006 02:55 PM

Forrest or Oscar,
Have you tried playing with higher frame rates for slow motion shots? 640 X360 would be like letterboxed standard def, and you could get framerates up to probably over 100fps. It may not look very good at that low resolution, Then again, until the recent HD cams, SD was just fine. In conjuction with a 35mm adapter to make the subject pop, you'll be able to do some really cool slow motion.

Also, does the camera do windowing or sub-sampling for lower res?

Overall I really like this experiment that Forrest and Oscar are trying, the heavy compression keeps it from being a real professional camera, but it's affordable, has a manageable data rate, and can do real slow motion (I hope).

There should be a whole host of new Gig-E and firewire B standard industrial cameras coming out soon that will be the subject of much experimentation, which is great.

Thanks guys, neat thread here...

Wayne Morellini May 25th, 2006 10:20 PM

Which new cameras are those? You know there are already thousands of industrial cameras.

Donnie Wagner May 26th, 2006 08:15 AM

Quote:

Originally Posted by Wayne Morellini
Which new cameras are those? You know there are already thousands of industrial cameras.

I said "should" and "whole host"
not "know" and "thousands".

Rob at Graftek (http://www.graftek.com) discussed it with me. He said that "when new faster connectivity standards come out so do new devices that can take take advantage of the extra bandwidth; ; so expect a whole host of new industrial cameras in a few months." Made sense to me, so I thought I'd voice my enthusiasm.

Donnie Wagner May 26th, 2006 08:17 AM

Industrial Cameras
 
Quote:

Originally Posted by Wayne Morellini
Which new cameras are those? You know there are already thousands of industrial cameras.

double post, oops


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