Highspeed Camera? at DVinfo.net

Brandon Adams · January 11th, 2005, 08:08 PM

I was wondering if it is possible to adapt either a video camera or a digital still camera to be able to capture in highspeed? I figured this is probably the best place to ask.

-Brandon

Matt Champagne · January 12th, 2005, 06:09 PM

The only thing I can think of would be to over clock the cameras clock...but then you have to worry about frying it...and you will most definatly have a bit of color loss or distortion. Someone did this for a cheap Gameboy camera once...it normally shot less than 1 fps, and I think he got it up to 3 fps. Unfortunatly, I am having serious trouble finding the website where I read about it...so I don't have the link. So its definatly possible to increase your frame rate through overclocking...but I don't know if you can get up to a practical "high speed" without completely destroying the image or the chip.

Other than that...your next option is to split the image with beam splitting prisms and use multiple cameras sync'd up. But you might lose too much light this way.

Good luck.

Obin Olson · January 12th, 2005, 10:45 PM

I will have a "Highspeed" camera working soon..that is one of the major design elements of our system over at
4:4:4 10bit thread

Donnie Wagner · January 13th, 2005, 08:04 PM

Isn't main problem the fact that you cant cange the dv tape speed? DV uncompressed is 15MBps and gets compressed to 3MBps to fit onto the tape. If you somehow doubled the frame rate of the camera for slow-mo, you would be creating 30MBps, compressed to 6MBps is too much for DV tape. If your camera could be programmed to cut the resolution in half when you shot slow-mo it could fit onto dv tape. Enough useless ramble, this company makes a nice slow-motion plugin...

http://www.revisionfx.com/rstwixtor.htm

Otherwise you could buy a wind-up 16mm camera on ebay for about $120, and film is $30 for a 100ft roll (which is about one minute of slow motion footage). Then you have to pay to get it developed $17, and tranferred to dv or digibeta or whatever your using (more $). Dont know exactly but I bet it's between $60-90 per minute when all is said and done.

Obin, nice work with the progression of you project, how many MBps are you generating at 24fps?, what fps are you shooting for slow mo, and what is that in MBps?

January 11th, 2005, 08:08 PM	#1
Brandon Adams New Boot Join Date: Jul 2004 Location: Boise, ID * Orange, CA Posts: 9	Highspeed Camera? I was wondering if it is possible to adapt either a video camera or a digital still camera to be able to capture in highspeed? I figured this is probably the best place to ask. -Brandon __________________ -Brandon

January 13th, 2005, 08:04 PM	#4
Donnie Wagner Regular Crew Join Date: Dec 2004 Location: Pittsburgh, PA Posts: 135	High Speed Video Isn't main problem the fact that you cant cange the dv tape speed? DV uncompressed is 15MBps and gets compressed to 3MBps to fit onto the tape. If you somehow doubled the frame rate of the camera for slow-mo, you would be creating 30MBps, compressed to 6MBps is too much for DV tape. If your camera could be programmed to cut the resolution in half when you shot slow-mo it could fit onto dv tape. Enough useless ramble, this company makes a nice slow-motion plugin... http://www.revisionfx.com/rstwixtor.htm Otherwise you could buy a wind-up 16mm camera on ebay for about $120, and film is $30 for a 100ft roll (which is about one minute of slow motion footage). Then you have to pay to get it developed $17, and tranferred to dv or digibeta or whatever your using (more $). Dont know exactly but I bet it's between $60-90 per minute when all is said and done. Obin, nice work with the progression of you project, how many MBps are you generating at 24fps?, what fps are you shooting for slow mo, and what is that in MBps?

January 12th, 2005, 06:09 PM	#2
Matt Champagne Major Player Join Date: Nov 2004 Location: New Iberia, LA Posts: 229	The only thing I can think of would be to over clock the cameras clock...but then you have to worry about frying it...and you will most definatly have a bit of color loss or distortion. Someone did this for a cheap Gameboy camera once...it normally shot less than 1 fps, and I think he got it up to 3 fps. Unfortunatly, I am having serious trouble finding the website where I read about it...so I don't have the link. So its definatly possible to increase your frame rate through overclocking...but I don't know if you can get up to a practical "high speed" without completely destroying the image or the chip. Other than that...your next option is to split the image with beam splitting prisms and use multiple cameras sync'd up. But you might lose too much light this way. Good luck.

January 12th, 2005, 10:45 PM	#3
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	I will have a "Highspeed" camera working soon..that is one of the major design elements of our system over at 4:4:4 10bit thread