Motion Blur - 102b

antonyraj

antonyraj

Member
Hi,

I have shooted a indian wedding session last week ( 102b ), the lcd display shows fine while shooting, but when i saw on a monitor it has a worst motion blur while panning:cry:, I need all of your help to know howto remove it using a a non-leiner video editing program, and also how i can avoid this in future video's, Please help me.

Thanks in advance.
 
antonyraj said:
Hi,

I have shooted a indian wedding session last week ( 102b ), the lcd display shows fine while shooting, but when i saw on a monitor it has a worst motion blur while panning:cry:, I need all of your help to know howto remove it using a a non-leiner video editing program, and also how i can avoid this in future video's, Please help me.

Thanks in advance.
Click to expand...

First off, were you filming interlaced or progressive?
Secondly, did you have the OIS (image stabilizer) on?
Third, are you sure that it the image is blurring and not "juddering" (appearing to jerk from frame to frame)

I can't unfortunately recommend any fixes in post production for this but in future:

If it's actually blurring when you pan, you may want to increase your shutter speed to cut down on motion blur or slow down the speed that you pan.

If it's the OIS being on - don't use it when the camera's on a tripod.

I'm picking that the effect that you are mentioning is "judder" It happens in progressive modes just the same as on proper film cameras (operating at 24 frames per second. )
If you pan too fast, the image gets "jerky" - pan slowly (7 seconds to get across the frame is a good rule of thumb)
 
can't remove motion blur.

you should post your settings - frame rate - shutter speed. you'll get more detailed suggestions.

panning slowly is the only way to really cut down on motion blur. of course shutter speed will affect it as well. slower shutters, more blur, faster shutter, more strobe.

1/48th and 1/60th are your middle ground, but again, pan slowly to minimize it.

your frame rate is another factor. @ 24fps there is a set amount of time it should take an object to go from one side of the frame to the other, as far as it being captured smoothly. I don't remember that number.

@ 30fps and @ 60i, the effect lessens, but your getting further away from the beauty of the dvx.


this info, while I believe is accurate, may be remembered incorrectly. hopefully someone will correct me if I have if I have missed something, or am wrong.
 
I have the 102B as well, no 24fps, only 25p, the difference is negligable, 25p is slightly overcranked 24p, only a trained eye would pick it, even then its hard to notice.
Pan nice and slow in 1/50th shutter (off) and you'll get nice images, as previously said, if you want to move the cam quickly, up your shutter to 1/250th, blur will disappear but it will strobe slightly, which can look awesome if used in the right overall theme of what you're shooting.
 
Strobing Woes

Strobing Woes

antonyraj said:
Hi,

I have shooted a indian wedding session last week ( 102b ), the lcd display shows fine while shooting, but when i saw on a monitor it has a worst motion blur while panning:cry:, I need all of your help to know howto remove it using a a non-leiner video editing program, and also how i can avoid this in future video's, Please help me.

Thanks in advance.
Click to expand...
This is also known as the strobing effect. This is a problem to film cameras as well. Search threads here on "strobing", or check out the DVX BOOK by Barry Green- there is great info there on this subject.

Basic rule of thumb, is not to pan from side to side too quickly- I think it's something like 7 seconds for an object to cross the screen on a DVX to avoid strobe jitter.

For quicker pans, try and keep a subject centered as they walk/fly/drive/run across your set during the pan- helps eliminate impact of strobing.
 
as per your guide lines i have change the shutter speed to 1/250 in 25p, but i can see a dip and dim lighting effect in the video, what the thing im doing wrong, when i tried it in 1/60, 1/50 im not geeting any trouble.
 
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