Recording with shutterspeed at 500 fps. if i play back at 30fps would the image be slo-mo?

Question

yeah im recording with the shutter speed at 500fps, while playing it back in Final Cut would the video playback at 30 fps be slo-mo?

Answer 1

I wish you had told us what you recorded with.



Please don't confuse "shutter speed" with frame rate.



You did not tell us which camcorder. Most consumer grade camcorders in North America record at 29.97 NTSC standard frame rate. Most people call this 30 frames per second.



Since you probably recorded at 30 fps and are playing back at 30 fps, there will be no change in the image motion speed. You *may* see some "strobing" during playback. You may also be able to grab clearer still frame grabs than if the camcorder's auto shutter speed were used.



If you have already captured the video, then you can use Final Cut to slow the motion down a bit... With the clip in the Final Cut timeline, click once on it to select it. At the command line under "Modify", select "Speed" and play with the Duration or Speed entries. I find Frame Blending helps - to a point. At around 15 frames per second (that would be 1/2 speed - remember, we captured at 30 FPS), you will start to see a jerkiness start and that's where frame blending really helps. Slower than this and it is fairly painful.



If you want clear slow motion, you need a camera that captures at a higher frame rate. The Casio Exilim series does this. So do some of the Sony camcorders - specifically, those with the "SmoothSlowRecord' feature. Last time I checked, the upper end (HDR-CX500 series) has this capability to burst capture for about 30 seconds which provides a 12 second playback...



The shutter in the camcorder dictates how quickly a single image gets exposed to the imaging chip. Like blinking your eyes really fast. The motion your eye sees is still realtime, but when this is applied to a camera or camcorder, it is the amount of motion that happens in 1/500 second rather than 1/60 of a second. This does not change the frame rate at all. Just like your blinking fast does not slow things down...



There are some pro-grade camcorders in the Sony HVR series HDCAM and XDCAM lineups that have "overcranking". And I *think* the Panasonic AG-HVX200 might. And some of the newer dSLRs that capture high definition video - like the Canon D7, I *think*...



Otherwise, for "real" high speed capture (and high quality slow motion playback), Check Photron or Vision Research for high-speed cameras...

Answer 2

gosh almost any camcorder ever made can have a shutter speed of 500/sec. the fast shutter keeps moving objects from blurring and also controls the exposure level for bright outdoor scenes. has nothing to do with slo-mo.



if you mean a camcorder with high frame rate burst record feature, then those rates are "virtual" and only playback at 30 fps "slo-mo", they are not capable of being played at "normal" speed. They are not recorded on the SD card at "normal" speed, the card simply cannot store data that fast. The burst is recorded on internal solid-state memory, and when that buffer is full, it transfers the data on the SD card at a rate the card can handle. Final Cut treats the file as it sees it, a 30 FPS video.

Answer 3

NO. shutter speed has nothing to do with FPS. if you have capabilities to record 500 fps, then playing it back in final cut won't do anything. you need to still put a speed effect onto the clip. that's where you'll see any difference.

Answer 4

It's going to take about 17 seconds to play back 1 second of recording so yes, it's slo-mo.