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     áòèé÷ :: Filmscanners
Filmscanners mailing list archive (filmscanners@halftone.co.uk)

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[filmscanners] RE: Genuine fractals?????



Preston, technically you are correct in saying failes do not have resolution
and even in saying that their contents do not either; but standard non-RAW
file formats do contain metadata which furnish rendering instructions which
tell the program to render the 3000x2100 pixels or what have you in a
certain way at a certain resolution on a monitor display or in a print.
This rendering in effect will determine the dimensions of the display or
print in terms of its rendered output size.  It also is what determines what
the original directly imported into Photoshop image will have as its given
resolution in dpi/ppi as found in the Photoshop Image\Image Size resolution
box prior to any changing of the file by the user.

In short, I was suggesting not to save the captured image in JPEG format
with the selection of either the low or medium quality settings and
sometimes even the Fine setting if that is the next to highest setting; nor
would I recommend saving the file to a TIFF format using the Low, Medium,
and sometimes Fime settings.  By using the highest setting or option
available on the camera which usually can be slected for the TIFF format and
not the JPEG format (we are not talking about RAW formats here), you will
get the best image in quality and resolution to use as the archival basis
for genrating working copies at resolutions and image sizes for uyse in the
varied purposes that the image might be used ( i.e., on the internet,
printed via inkjet, or reproduced via printing press for puting on the
refrigerator, greeting cards, displaying on a wall, or for publication).

-----Original Message-----
From: filmscanners_owner@halftone.co.uk
[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Preston Earle
Sent: Thursday, November 25, 2004 12:29 PM
To: laurie@advancenet.net
Subject: [filmscanners] RE: Genuine fractals?????


LAURIE SOLOMON wrote: "Well, I do not own that camera and am not familiar
with it; but I assume that if you look in the manual you will find that you
can capture your images at around 300 dpi and save them to a tiff format;
but capturing them at a high resolution around 300 dpi as a RAW file would
also be good . . . The last thing I would suggest if you are shooting
serious pictures is to capture and save them as 72 dpi . . . "
------------------

With all this discussion of file resolution, I feel I should point out again
that *files* don't really have a "resolution". That is an attribute that's
assigned when the file is printed or displayed. Files have size (in pixels),
and a 3000x2100-pixel file can be 300-dpi(ppi) ("hi-res") and be reproduced
at 10"x7" or it can be 72-dpi(ppi) ("lo-res") and be reproduced at about
42"x29". There is nothing about an image file that makes it hi-res or
lo-res. The same file can be hi-res or lo-res depending on the intended
output size.

Preston Earle
PEarle@triad.rr.com


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