When i pan the image on hvx200 becomes slightly shaky... Anyone know why???

P

Paul Barry

Member
WHEN I PAN THE IMAGE ON MY HVX200 BECOMES SHAKEY..... ESPECIALLY TEXT...... AT FIRST I THOUGHT IT WAS THE SHUTTER SPEED.... I CHANGED IT FROM 180.00 to 1/60.... But nothing..... Would any be able to help me??? I would greatly appreciate it????
 
If you're on sticks, make sure the OIS is OFF. It will introduce a tearing artifact if left on when the camera is panned on a tripod or jib head. The HVX, being CCD, won't skew, but you could be seeing a little lag if you're in 24 frame modes or have a slower shutter.
 
Paul Barry said:
WHEN I PAN THE IMAGE ON MY HVX200 BECOMES SHAKEY..... ESPECIALLY TEXT...... AT FIRST I THOUGHT IT WAS THE SHUTTER SPEED.... I CHANGED IT FROM 180.00 to 1/60.... But nothing..... Would any be able to help me??? I would greatly appreciate it????
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No need for all the all-caps. :)

Are you shooting 24p? In addition to the possible OIS problem Erik mentions, you may simply be panning too quickly. If you're shooting 24 fps, you need to be panning slowly, and even MORE slowly the further you're zoomed in.

A faster shutter speed, which is what you get when you switch from 180 deg to 1/60, will actually make this problem worse.

So, slow pans. Slow camera movement in general. Shooting at 24 fps means slooooow.
 
OIS WAS OFF.... How could I get rid of that lag??? I was shooting in 720P/ 24PN ..... What is the ideal shutter speed for this that recording setup?? And also would the synchro scan play a part in this is issue of mine???
 
Sychro Scan should be 180 degrees. If it is higher, you will see motion blur. If it is lower, you will see stuttering. There isn't any 'wrong' setting, just a normal one and a 'non-normal' settings for creative effect.


Jason
 
That's your panning speed that's causing the lag. The ASC actually publishes recommended panning speed based on frames per second / 180° shutter production. So, you're not having a unique problem! Their guide is for 35mm motion picture photography, but it can be translated to the various other sensors. As an example, you should not pan a 28mm lens more than 6.3° per second. So, a ninety degree pan would take 14 seconds to eliminate discernible lag.
 
@AWAKENED FILMS: I was told Sychro doesn't neccesarily have to be on.... Is this true? If so, for what reasons would I turn on Synchro Scan... Also what would be considered the normal setting for shutter speed???

@ERIK OLSON: Should TV commercials be shot in 24frames???

THANKS BOTH YOU, AS WELL AS DAVID JIMMERSON
 
Hi Paul,
Synchro Scan is for DPs who are used to thinking in shutter angle instead of shutter speed. It is also for fine tune adjustments necessary to eliminate rolling artifacts on TVs / Fluorescent lights...etc.

If it is off, you are shooting under the 'shutter speed' numbering. Its like fahrenheit and celsius. water boils at the same temperature in both scales, they just have different naming conventions.

For instance, 180 degrees in 24p is 1/48 of a second. 220 degrees is somewhere in the range of 1/40, 350 degrees in nearly 1/24. Its the opposite as you go the other way.

For a normal look, keep it a 1/48th or 180 degrees. For less strobe, lower your shutter speed (or increase you shutter angle). I find 220 degrees works quite well.

Erik is right about the panning speeds. You need to be careful with lower frame rates. 24p is fine for commercials, as many high end commercials are shot on 35mm film at 24fps. 30p, 60i or 60p will give you a smoother look, more like reality TV. Its really an aesthetic choice.


Jason
 
I was shooting in 720P/ 24PN
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the short answer is: what youre noticing is a symptom of the 24frame cadence. you cant treat a filmic situation the way youd treat a video camera.
 
Paul, search for "strobing", this has been discussed in depth here. Or, if you got a copy of The HVX Book with your camera, you can look up the chapter on strobing.
 
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