7D and Shutter Speed

G

ghking

Member
hey everyone
I just got my new 7D and I am experimenting with the settings. One of the problems I am having is that my video always seems to come out choppy when I am in 24p. I know 24p is slow by its nature, but some of the clips that I am getting with it are really hard to watch, even at lower shutter speeds such as 1/60.

i have seen videos on youtube and vimeo with higher shutter speeds such as 1/125 and 1/160, and even they dont look like this. What am i doing wrong?


heres an example at 1/125.
(Its easiest to see the choppiness in full screen mode.)

http://vimeo.com/10513532

 
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I must say that it looks terribly choppy on vimeo but i downloaded original file and it looks normal like 24p , always shoot with 50 shutter speed no matter what,use ND filters or polarizer to control exposure.
 
Guys, 24 fps is 24 fps. Your DVX will not be any more "smooth" then the 7D. Look into your conversion process and time line settings.

Was this clip slowed down at all? I ask because of the audio, which does not sound right.
 
To me it just looks like a Vimeo/Computer playback issue. Granted, I didn't check out the raw file, but any stuttering I saw happened at different times during multiple playbacks.
 
Smooth film like motion for 24P is 1/48th second. That's how it's been for a long, long time. This is also known as "180 degree shutter", which is half of a 360 degree circle. So the shutter is open half the time.

You can try 1/40th and 1/50th to get as close as possible. The 1/40th will have more motion blur, and sometimes that's a good thing.
 
William_Robinette said:
Guys, 24 fps is 24 fps. Your DVX will not be any more "smooth" then the 7D. Look into your conversion process and time line settings.

Was this clip slowed down at all? I ask because of the audio, which does not sound right.
Click to expand...

Isn't the dvx footage not true 24p, but interlaces some of the frames?

and yes I forgot to say that I did do the 60p to 24p conversion with cinema tools and compressor which is why the sound is slowed, however I took a native 24p clip of the same shot that has the same issue. I guess ill just keep the shutter low from now on
 
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