EX1R Moray Issues

S

Scott Ransom

Member
I am getting the dreaded rolling shutter moray effect on interviews with high contrast vertical lines(I'm sure we have all heard about or seen) Don't see it on the camera monitor.....but visible on external monitor....and is going on the cards.
What menu settings can I turn on or off.....adjustments I can make in camera....to minimize?

Shut off detail in PPO has been recommended(helped but not completely)
Make sure EVS is not on
Introduce some shutter(like we used to do for flouro flicker).
I still see it under extreme conditions.( I know to avoid extreme contrast vertical lines but you can't always do that)

What else my friends?

SR
 
Words are inadequate. Post a capture so people can see what you're talking about. Are you panning?
 
yeah, some patterns are just evil.

i never heard of moire´ being a function of rolling shutter....
 
MPB said:
yeah, some patterns are just evil.

i never heard of moire´ being a function of rolling shutter....
Click to expand...

Correct. Rolling shutter has nothing to do with it.

Moire happens when shooting film too if the right elements are introduced.

Turn detail down or avoid the situations that cause it.
 
Striped shirts are a no-no in television. Have been for over fifty years. Either change the shirt or through the image out of focus just a tad.
 
The camera monitor is a low resolution monitor that will miss small details. Since moire is a function of the frequency of the pattern as it relates to the resolution of the camera you can only see its true effect in a monitor that matches the resolution that your shooting. Rolling shutter is not involved.

If you had the monitor you could have moved in, pulled back or done other things to change the frequency. Blurring during the shoot works. Blurring in post helps a little but not so much.
 
Duke...Good points all. I am unable to post video of this effect as you suggest as it is now in the hands of the client. You are right....that would be the absolute best way for you and others to see what I am talking about.

Lately,I have framed up the head of a common house broom.....as this approximates the situation with the female interview subject with fine bangs down her forehead which gave me fits recently(but was corrected by Gaussian Blur in post).

Even with detail turned off....any panning of the broom head creates a momentary blur that continues until the pan stops at which time full resolution returns. I am guessing here.....but my theory is that the imager cannot keep up with all the fine features of the broom fast enough....even during the slowest of pans?

I know there are ways to minimize this situation including avoiding bold striped shirts etc...panning slowly ......which I have been doing for decades. But this seems to be something that SOME menu item could be tweaked to take this effect out.

OR....is this just something that EX1r....does and too bad for me!

Your advice much appreciated.
S
 
I keep Image Stable off most of the time unless really needed.....but good point to check. Incidentally, I was told that a very slow zoom speed on the camera is also affected by Image Stable.....turn off to improve. Tried it and it does help although I can only get a good "creep" using the menu controlled handle zoom set at the lowest allowable number in "low".

Appreciate the advice....keep it coming if anything else occurs to you.
S
 
Regarding the appearance of blurring while panning:

1. Motion blur is a function of shutter speed against panning speed. A fast shutter reveals clear still frames.

2. Pause the video playback. Is it still blurred? If not, and you are using an LCD monitor, it may be the response time of the LCD.

A while back, someone did a test of panning a resolution chart and then taking out the panning motion in AfterEffects using one of the motion trackers. The result was that detail did not change appreciably whether stationary or panned, as long as the shutter speed was fast enough.
 
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