I understand your point, Bob, but I think that we ought to stop calling it
things like "up rez" when we mean adjusting only the size of the image --
changing the pixel dimensions. Before you get to the print there is no such
thing as resolution except as presented by your display (and that makes no
difference as the display sorts it out).
And when you get to the printing stage you are adjusting the size (the number
of pixels) to make the proper resolution -- in your example, so that it will
print at between 180 and 400 dpi.
180dpi! That's quite a surprise.
And yes, I know that this was a risky post to write to someone as accomplished
a printer as you :-)
Chris
On 26 Oct 2010, at 22:29, Bob Whitmire wrote:
> One of my printing gurus has said that if the scale is somewhere between 180
> and 400 (and I believe this is dpi, not ppi), you can get a good print. Less
> than 180 and it starts to fall apart. More than 400 and the same thing
> happens. He recommends no up or down rez unless the final size falls outside
> the 180-400 limits. (The 400 was actually more like 420 or 460, but I don't
> recall which at the moment, and I'm way too lazy to look it up.)
>
> I know a lot of folks when they run their RAW files through ACR, set 'em to
> go to 300 ppi, but I've also seen some of the Mighty Ones, live and in screen
> shots, who let 'em go at 240 and call it good. I've been converting at 240
> most of my time and I'm not complaining.
--
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