Very interesting info,
I will file this to keep as reference.
Cheers Adam
> Hard to tell without a size reference. What portion of the original film
> image is on your post?
> As C.H. says, you can determine whether it is a film or scanning problem
> by viewing the slide directly with a 20-30x loupe and comparing the
> granularity on the film to the scan.
>
> Problems with odd patterns in ink-jet prints can often be due to using a
> fixed print size such that the number of pixels in the image has to be
> interpolated to the printer dpi at a ratio that isn't a simple integer.
> Lets say you ask your printer driver to print a 4000 pixel wide image at
> 8 inches wide on a 1440 dpi printer. The printer driver then has to
> interpolate 4,000 pixels into 11,520 pixels. Each orignal image pixel
> beomes 2.88 printer dots. No algorithm can do that without having an
> adverse impact on the resulting image. The same image sized in the image
> editor at 480 dpi, with the exact printed size allowed to fall where it
> may, will look much better. Printing without taking this issue into
> consideration can lead to frustrating, apparently random, differences in
> print quality between prints of differently cropped images from the same
> roll of film.
>
> Moose
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