Slo motion video camera

[X34]

I am trying to collect info of the above. Most video cam cannot do slo mo. Any ideas?

[Sunstorm]

Most video cameras only record up to a certain frame rate. Can't remember what. Maybe only 60 fps?

So if you want slo-mo video, you can only slow it down to about 60% before it starts to get jerky with a normal videocam.

There are cameras made for slo-mo - those can operate up to 1000 fps.

But I think they are waay out of most of our leagues.

[X34]

Must look for cheap ones, some 2000fps cost 6 digits!

[Sunstorm]

Maybe you can rent one.

[tkchang28]

Casio new camera

Hello,

you can wait a bit longer and casio might have answer to your needs... 300 fps for video and 60fps for photos.

Pls review..

http://www.dpreview.com/news/0708/07083101casio300fps.asp

[tkchang28]

casio fx-1

Hello,

One more link...

http://www.exilim.com/intl/ex_f1/

[Sunstorm]

Looks like it will be the GPMG of cameras...

[9VDXN]

James,

How slo-mo do you want to go? For what kind of applications?

I have access to cameras that are capable of 50fps recording in HD. Meaning that the cam is running at 2x normal speed, which give you an effective 50% slow-mo.

Anything even slower can be achieved by software interpolation, but not as accurate...and anything more accurate is at 6 digits figures like you mentioned.

[bluemoscow]

Panasonic AG-HVX202 is the camcorder to consider. 50fps in DVCPROHD format using solid state memory recording.

[Cessna584]

Slow motion

I think personally it does not matter whether you can record slow motion in your camera. Instead, you should be concerned whether your CD or DVD player can play slow motion or fast motion or not. Nowaday, DVD/CD player have such an option right! So just record normal in normal mode and then play slow motion in your player.

[bluemoscow]

Slow motion camera capture very nice slow motion like 35mm film camera. Ever notice the nice slow motions in the hollywood movies as compared to TV drama computer edited slow motion.

High Production value of a film depends on little things like on camera slow motion capturing.

I can share more indept infomation if anyone is interested to explore.

If it is very casual viewing I think dvd or vcd slow mo is good enough.

[X34]

James,

How slo-mo do you want to go? For what kind of applications?

I have access to cameras that are capable of 50fps recording in HD. Meaning that the cam is running at 2x normal speed, which give you an effective 50% slow-mo.

Anything even slower can be achieved by software interpolation, but not as accurate...and anything more accurate is at 6 digits figures like you mentioned.

Me looking for 300fps.

Currently, doing motion analysis with video playback system, slowing it down to 10fps playback, quality suffers too much, need very very powerful cpu to enhance, and need to train the people to operate software.

[9VDXN]

www.photron.com have some high speed cameras & recording solutions.

When you mentioned 'quality suffered too much' does it mean that your current recording solution is MPEG & interframe based? If so, motion analysis would not be accurate enough because the temporal compression & noise will degrade the footage's quality.

Worse case is when you slow down the footage to play at 10fps, basically you are just going to see blurr streaks of the movement.

Pardon me if I'm wrong, but you need to be looking at uncompressed solutions or at least intraframe based recording solutions where each individual frame is recorded as it is. Capturing resolution and recording sustainability to maintain the frame rate is critical.

From my experience, capturing standard definition video (720x576 @25fps) in full uncompressed 10bit color space is already quite straining on a standard SATA drive....I cannot imagine the data rate sustainability on capturing at 300fps with minimal compression at a decent resolution.


Guess I am unable to help any further coz my experience in slow-mo imaging is limited to broadcast applications for sports programs, running at most 120fps....would love to learn more about this aspect of video image acquisition if you're keen to train me.

Do feel free to give me a buzz.

[X34]

THis slo mo technology is still in the infancy stage in terms of mass availability. The Photron stuffs are more for super high speed weapon development! Way beyond my shoestring budget.

Was working with uncompressed std video - 10 min is like 4Gb. what I discover is - human being can make quite a few movement within a faction of a second!

Anyway will wait for the Casio's solution. It was first introduced in LV, dunno if it is available yet.

[9VDXN]

I've checked out specs for Casio's solutions....the higher FPS that you record in, the smaller resolution you have to compromise with, but if it suits your applications, then I guess it should work just as good as those higher end systems.