Video: High Speed 2K & 4K RAW -- FS700 & Odyssey7Q

Thanks Mitch,

Didn't know you could scrub video like that on playback, very cool. Loving the 7Q a little more everyday.
 
lsorensen said:
Thanks Mitch,

Didn't know you could scrub video like that on playback, very cool. Loving the 7Q a little more everyday.
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This is part of the new advanced playback system which was introduced in our July firmware update. It greatly enhances usability of the Odyssey7Q.
 
Great demostration Mitch.

I noticed that your shuter speed was set to 250 for the 2K recording and 125 for the 4K recording. I thought a general rule was that your shutter speed had to be at least the double of frames per second? So in this case for the 2K recording at 240 fps above 480 and for 4K at 120 fps above 240?

Or is that not needed since the slowmotion is converted into 24 frames per second? I am confused.....
 
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Asger G said:
Great demostration Mitch.

I noticed that your shuter speed was set to 250 for the 2K recording and 125 for the 4K recording. I thought a general rule was that your shutter speed had to be at least the double of frames per second? So in this case for the 2K recording at 240 fps above 480 and for 4K at 120 fps above 240?

Or is that not needed since the slowmotion is converted into 24 frames per second? I am confused.....
Click to expand...
That is the general 180 degree shutter angle rule, yes.

But from what I'm guessing, it's not as closely followed when shooting slow-motion in an effort to let more light hit the sensor.
 
I did my own eye test and found that 1/350 shutter looked the most like 180 degree shutter when shooting 240 fps. Don't know exactly why but when I speed ramped for a normal speed effect it looked the most like normal 24p motion to my eye. A little too much motion blur at 1/250 for my taste.
 
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From my understanding, the 180 degree shutter angle will still hold true even after playing back at a slower framerate.

What matters is the initial framerate (240) and shutter speed. So, a 1/480 shutter speed should look exactly like a 1/48 shutter speed would look on 24 fps footage.
 
I tried 1/500 and felt it looked slightly too crisp. Again...there are rules...and then there's the eye test.
 
All of the above is pretty true. I generally do not follow the double the number rule too closely, in fact I too like a bit of extra motion blur. I've done tons of Phantom work at 1000s of fps, and I often like the shutter around 200-215 degrees. But then I'll do some high speed food photography and knock things down to a 90 or even 45 degree shutter. All variable for effect.

Honestly, I was far too occupied trying to get through this video before my son completely lost interest and I didn't even notice the shutter speed. I just dialed up and down the iris to adjust the exposure.
 
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