What is happening here?

[reflex]

I was doing some test shots and I noticed that this keeps happening to me.

http://www.reflexive-cinematics.com/miscimages/frame.jpg

I circled in yellow what the problem is. It seems that around certain edges I get a wavyness or jaggedness. It doesn't seem that its interlacing even though this is 30i footage, and it is still there even when the camera isn't moving.

Is there something wrong with my camera?

[Jarred Land]

welcome to artificial intelligence. what camera are you using?

[reflex]

Please dont hate on my cam LOL It's what I could afford. I have a Sony VX2100

[Jarred Land]

hey its a good camera im not hating on you.. but what you are seeing is probally compression artifacts.. if you go shoot your blinds or any other tight stack of lines you will see it. Pretty normal stuff for 60i. It might be less noticable on a TV rather than your computer.

[JHouser]

It doesn't seem that its interlacing even though this is 30i footage, and it is still there even when the camera isn't moving.

Is there something wrong with my camera?
Another possibility:
What shutter speed are you using? Are you using "progressive scan" mode? Both 1/30th of a second and "progressive scan" in the VX2k/PD150/170 will do that. Try plain old 1/60th in standard mode. Should clear it up.

[reflex]

oh ok.. I see what you mean and you are right. Any thing like stacked papers or vinyl or even the chrome striping on the doors of a '69 caddy :P seem to pick it up. Its just kind of wierd that I never noticed before. I'll just have to keep that in mind. Thanks

[reflex]

Another possibility:
What shutter speed are you using? Are you using "progressive scan" mode? Both 1/30th of a second and "progressive scan" in the VX2k/PD150/170 will do that. Try plain old 1/60th in standard mode. Should clear it up.


OH really? I consistantly use 1/30th shutter on the cam. I never use Prog scan though. I just found that the 1/60th shutter led to an even more 'harsh video' look. below 1/30, there was too much motion blur, but 1/30th seemed to look pretty good.

[reflex]

ACtually, i just tried it out. Changing the shutter speed does not affect it at all. It's seems that the more angled the camera is from the angle of the 'stack' or ' thin edges' the tighter the banding / wavyness is. When i tilt the camera to the same angle it dissappears. Hmmmm..

Also if i zoom in on the affected problem area, the wavyness/jaggedness goes away. But this only seems to happen on thin things. Anythnig bigger than an inch wide wont' really seem to get that way.

[Jarred Land]

its not a 30"p" problem nor a shutter speed issue at all reflex.. this is just a common interlaced issue.. the reason it goes away when you zoom in is that the lines get bigger. One way to reduce this effect is in post or in camera by decreasing the detail level.

[thisiswells]

Take comfort in the fact that the TRV900 is much, much worse !

[reflex]

LOL oh man...