Re: Scanner settings

[Raphael Bustin <rafeb@channel1.com>]

Joe, there's no need to scan a photo at anything much
over 300 dpi -- unless it's been printed by a top-notch,
professional photo lab.

Conversely, at the output end, you probably only need
250 dpi or so to print the image on the Epson 750 (or
any other Epson, for that matter.)

So there's really no reason a 4x6" photo should
involve an image file much larger than around 6 Mbytes
or so.  That's 4x6x300x300 pixels, times 3 bytes per
pixel (24-bit color.)

Both of the dpi figures that I've quoted (300 for
input, 250 for output) are subject to some dispute
and controversy, but try them on for size, and see
for yourself.

rafe b.

On Fri, 2 Jul 1999, Joe Wu wrote:

> 	Hello--
> 
> 	I am new to this world of digital recording of pitures and I have
> a question...i am trying to scan some photographs to have an archive of
> them on disk.  However, i am do not know what settings I should use.  I
> have a Microtek labs X6EL with 32 bit color and 9600 dpi interpolated.  I
> tried scanning a 4x6 photo at 32 bit color and 3200 dpi and it took up 2GB
> of hard drive space...I don't have the room to do that!!  And when I used
> the default settings for "photograph" in their scansuite, the picture was
> not sharp enough.
> 
> 	In essence, what settings should i use (resolution, color) if I
> want to preserve my photos and reprint them using a Epson Photo 750 so
> that the reprints look just as good as the originals prints, but are of
> archival quality?  Thanks.
> 
> Joe
> 
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