Questions on Still Image Export

Question

I shot a wedding where the photog's Hasselblad failed. Only the first two frames of each roll where successful. I need to export around 100 images as stills. Each time I use QT Conversion I have to select "still images" from the format drop down box. Is there a way to set "still" as a default?
Secondly, the exported image looks a bit "wide" compared to the images in FCP's canvas. How do I adjust for this. In FCP? In Photoshop? I'm sure this is remedial but I'm a bit of a novice. Thanks in advance for any help.
Frank, Cranford, NJ

Answer 1

Studio X wrote:
2. When you start with DV material, the highest res
you can get is 720x480 (non-square) or the equivalent
of a really bad quality cheepo still camera.
(~640x480 square pixels)
To avoid the need to deinterlace, (the horrors of
which are described below) find sections in your
video that have VERY LITTLE motion, i.e.
everyone/thing standing/existing absolutely still
with the camera locked down on a tripod. These
sections will yield the very best possible still
images.
If you have motion, the still images will exhibit
'tearing' which comes from the two fields of video
being recorded ~1/60 second apart. The second field
shows elements displaced from the first field - hence
a kind of internal image shifting going on. The only
real way to deal with these kind of images is to
deinterlace them - that is - decide which field you
are going to keep and throw away the other.
When you have deinterlaced the image, you have in
effect reduced it from a 720x480 image to a 720x240
image. The image pixel count REMAINS 720x480 but with
half the vertical information as the remaining lines
are doubled or interpolated to build back to 480
lines.
I take your explanation to mean that when you export a frame from FCE you get both fields. I am confused by the use of the term "de-interlace", since in television displays that term is defined as obtaining a full frame picture either by a) combining the two fields (called "weave"); b) duplicating lines of a single field (called "bob") or c) using some form of interpolation to derive the alternate lines.
From this point of view, the term "de-interlace" as applied to the filter in FCE does not have the same meaning. Exporting without filtering produces what the TV interpretation would be a picture "de-interlaced" according to process a); applying the de-interlace filter produces an image containing one field only, and de-nterlacing that in Photoshop amounts to the application of either b) or c) above.
Am I correct on this?
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