Weird lines in 7D footage

Lucas 7D

Lucas 7D

Active member
Hey guys so I noticed some weird lines in some of my footage. The first photo shows odd blue lines on the wooden table and the second has horizontal white lines moving vertically during a concert. the thing is the other shots didnt have these lines during the concert and I was close to the loud speakers thinking maybe the noise was creating some sort of static to the camera sensor.

Please click on the photo to see the issue in more detail.

BTW the guy in the first photo is Steven Cannell, creator and writer of A-Team and many other shows.
 

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Yep the first one's moire, as I experienced the same thing while shooting my neighborhood and some brick buildings. I wonder if the second might have to do with any SPL vibrations from the speakers, causing a little jello effect.
 
Moire on the first pic. The second pic may be a combination of fluorescent lighting and shutter speed used.

Stephen Cannell...looks a little older...but has that same hairstyle from when I was a kid. He must be richer than rich with so many shows under his belt.
 
Yep, the second one is what happens when you use a non-1/60th shutter speed on a CMOS camera. Don't do that, force the shutter to 1/60th whenever shooting under any fluorescent/hmi/vapor light.

1/50th for PAL users, obviously.
 
Barry_Green said:
Yep, the second one is what happens when you use a non-1/60th shutter speed on a CMOS camera. Don't do that, force the shutter to 1/60th whenever shooting under any fluorescent/hmi/vapor light.

1/50th for PAL users, obviously.
Click to expand...

So set to 1/60th even if shooting 24p? Instead of 1/50th...
 
To be clear, shoot 24p with 1/60 all the time or only when shooting under fluo/hmi/vapor?

I'm also slightly curious. Everyone says 1/50 is appropriate for 24p. What happened to 1/48?
 
Always when under fluo/hmi/vapor. But it really doesn't make much (if any) visible difference to use 1/60 vs. 1/50, so instead of stressing about it and forgetting and making a mistake, why not just leave it on 1/60 and never worry about it again?

1/48 is not an option on the SLRs. You can get 1/45 or 1/50, but not 1/48. Doesn't really matter, they're both extremely close to 1/48 that it would make pretty much no perceptible difference whichever way you went. But, you'd still be subject to the weird lines -- so stick with 1/60 and you won't have any problems under any light sources.

(and PAL users, stick on 1/50)
 
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