Why shoot at 50 shutter at 24fps?

Lucas 7D

Lucas 7D

Active member
I really like using my 1.4 when there is some light outside. Why stick to 50 shutter? What is the big difference with using say 1200 shutter?
 
Lucas 7D said:
I really like using my 1.4 when there is some light outside. Why stick to 50 shutter? What is the big difference with using say 1200 shutter?
Click to expand...

I don't think you have to stick to 50 at all, but in my opinion it maintains a bit of tolerable motion blur and seems like it causes less rolling shutter / jello-vision as a result. Higher shutter speeds just mean a sharper frame to frame image with fast motion, but like I said... without that bit of motion blur, you might notice some image distortion depending on how fast the object might be moving.
 
If I'm not mistaken, 50 is to achieve more film look which in fact should be 48. half the framerate, but 7D has not 48 shutter speed and the closer is, of course, 50.
 
Just be careful of using 50 around any light that flickers and draws on US power
eg street lamps, household or office fluros etc etc
 
It is mostly about the way motion is displayed in video. With 24 frames and 1/50th of a second (or 1/48th) each picture will freeze half of the movement of 1/24th of a second of the filmed object into one picture. If it moves a lot within this small time frame it will be blurred a lot, if it moves not at all then it will be fairly sharp. The other half of that 1/24th of a second will not be recorded, ignored you could say. Then the next frame is recorded. How much is recorded and how much is ignored in each (time-) frame ultimately effects the look of the captured motion.
All this adds up to a representation of motion we are now used to (24fps, 48th shutterspeed). There is no right or wrong. You could watch at 100 fps as well, it just would look different. And the audience picks up on that.
I e.g. can actually differentiate between something that is shot at 30fps/60i (TV in the USA, as far as I know) and what I am used to (German TV which is 25fps/50i).
 
Lucas 7D said:
I really like using my 1.4 when there is some light outside. Why stick to 50 shutter? What is the big difference with using say 1200 shutter?
Click to expand...

Try it both ways and look for yourself. If you understand the concept of shutter speed then it should be apparent to you.
 
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