Prolgoue: Old man who doesn't have a lot of time to study manuals, etc.
Video Camera: Canon hmf 41, filming in auto mode, (MXP), 1920x1080(i ?). Video copied from camera in MTS mode to hard drive, imported into CS5, Premiere and After Effects.
Conditions. black background, room lighting from above (incandescent chandelier), extra light thru windows; "test" subject has yellow shirt with criss-cross , blue, white and red stripes; "real" subject: purple patterned shirt, no glasses. (see pics).
Looks good on both camera LCD and Samsung 21.5" HD TV set.
Then: Bad Moire (?) problem with Premiere and After Effects (Vista 64 or Win 7) on both computer monitor and same TV set, particularly for the test subject (me). The effects are not simply on the shirt, but also on the glasses frame. No moire with media player 12 on Win 7 computer .
An Adobe problem? All presets still produce moire. Gaussian blur reduces some of it, but I don't like the results.
Exporting the 1920 x 1080 mts file to mxf format, progressive, eliminates moire, but reduces it to 1440 x 1080.
Questions. Since I plan to be conducting many interviews, I would like to eliminate the moiré to begin with, so don't have to export, etc. There will be enough editing as it is. What are the consequences of the reduction from 1920 to 1440? It seems that keeping 1920 would be better.
Thanks in advance. Wait until you get over 30 years old!
Moire is a function of the lens and the imager. How obvious it appears can be related to the capabilities of the display, but the NLE will not actually introduce moire that isn't already there.
So if you're getting moire in your shots, the solutions are to change the subject matter so that very fine lines aren't a part of the scene, or to get a camera with a better lens and a better imager.
Thanks for the replies.
Joe, hen you move around your picture, it looks very much like the video I have -- so it seems like moire to me.
Changing display properties had no effect.
I dont' see how the problem could be exclusively that of the camera, since different software eliminates the effect: the clip is constant, the software varies (Premiere CS5 vs Medial Player 12).
How the clip is displayed can affect how bad the moire appears. But it is only introduced into the media during shooting, when fine details in the scene are unresolvable by the lens and imager. And so the only real solution is to change the scene, or improve the hardware.
As far as I can see on both picture i'll think that's no moire, but rather than an interlaced problem.
Take a look here: http://en.wikipedia.org/wiki/Interlaced_video
Do you have tried to export as mpeg to a DVD and show the clips on a TV?
Regards from Germany
Europe, Middle East and Africa