On Fri, 19 Jul 2002 02:03:12 GMT, Ed Anson wrote:

>I recently obtained a polarizing filter for my TRV-900. In a lot of
>circumstances, it improves my video remarkably. However, I just noticed
>that it sometimes has an undesirable side effect. I made the mistake of
>mounting it on the front of my UV filter, which I always leave in place.
>In most of my shots, there is no problem. But in the wide shots, the
>corners of the frame are rounded off, apparently by the blurred shadow
>of the filter.
>
>I first noticed this [d]efect while preparing to edit some recent
>footage. Re-shooting is not an option, and some of the affected shots
>are critical to my project. Fortunately, only a small portion of my
>footage is affected, so I have been considering various ways to fix it.
>
>The best I have thought of so far is to create an image that contains
>only the corners of my background (or something resembling it). By
>mixing that in with the footage, perhaps I can disguise the vignetted
>corners. Fortunately, the lost portion is only background.
>
>Does anyone have any better ideas? [FWIW, I edit with FCP and Photoshop
>is available.]

If you only noticed it while editing, it may be that the
vignetting only shows outside the "TV-safe" area and
won't be seen on TV unless you use a transition that
moves the image and reveals the corners (the preview
window in the editor shows the whole frame area, which
includes area not seen normally on the TV). I would
not change the image size, since this often results in
undesirable artifacts - though your idea can work with
a properly-matched "image matte" transparency (in
Premiere), if the background is constant...