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

["LAURIE SOLOMON" <laurie@advancenet.net>]

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, as
long as you have an OEM program or Adobe's RAW application to work with them
prior to saving them as a TIFF.  After you save them as a TIFF (or PSD if
you use Photoshop) format file, you can than manipulate and edit them image
editing programs like Photoshop, including using interpolation if necessary.
The last thing I would suggest if you are shooting serious pictures is to
capture and save them as 72 dpi Jpeg files unless you are shooting
exclusively for internet use or refrigerator door snapshot prints.  Even if
those are some of the uses that the image might  be put to, I would shoot at
maximum resolution and save without compression or if necessary with
lossless comprssion so as to have the highest quality original possible;
You can always convert that original into a compressed Jpeg for use on the
internet and you can always downsample the image resolution to 72 dpi after
the fact (both of which I would save as different working copies of the file
so as to retain the original file.

In your case, I would archive  the original RAW file and make a working TIFF
copy for use in editing and printing or from which I would make any jpeg
files.

-----Original Message-----
From: filmscanners_owner@halftone.co.uk
[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Myles
Sent: Thursday, November 25, 2004 10:18 AM
To: laurie@advancenet.net
Subject: [filmscanners] Re: Genuine fractals?????


Date sent:              Sat, 20 Nov 2004 15:12:13 -0600
Send reply to:          filmscanners@halftone.co.uk
From:                   "Laurie Solomon" <Laurie@advancenet.net>
To:                     dryden@mgt.gla.ac.uk
Subject:                [filmscanners] RE: Genuine fractals?????

> I use the program frequently; and find that for most upsampling within the
> normal ranges, it is not all that much different from Photoshop's Bicubic
> methods.  It is in the extreme ranges of upsampling that the difference
may
> begin to appe      arandGFmaybegintoshine.
>
> What I do not understand is, if you are concerned with quality, why are
you
> saving your digital camera captures to a Jpeg format which uses lossy
> compression and which most digital cameras will not let you save captures
at
> resolutions in the 300 ppi range but tend to limit one to capturing at
> resolutions less than 300 ppi.  If it were me, I would be saving the
> captures to Tiff format files which most cameras allow to be saved at
300ppi
> resolutions.


My canon G2 digital  does not offer the tiff option but offers Raw
format which I believe can be converted to tif.Would such a conversion
give me the benefit you mention ?

 Resolutions of 72 ppi are common for web use but not for
> printing and especially not for large prints; and Jpeg format is used so
> that the user can capture on one card more images (assuming that they will
> only be used for viewing online or via monitors or will only be printed at
4
> x 6 sizes at best).
>

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