best way to sharpen high res images for printing...

  • Thread starter Thread starter keith taylor
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keith taylor

i've scanned some velvia slides in using vuescan and a minolta 5400 at
the top notch resolution. i'm getting ready to print the pictures
between a4 and a3 in size. however, i'm a little unsure what is the best
method to get pin sharp prints from my scans.

should i be using sharpening in vuescan?, unsharp mask in photoshop?,
using the high pass filter followed by soft light in photoshop? or neat
image?

does anyone have a magic formula for high res files? as i said initially
im scanning velvia 50/100 so grain isn't much of an issue.

keith
 
i've scanned some velvia slides in using vuescan and a minolta 5400 at
the top notch resolution. i'm getting ready to print the pictures
between a4 and a3 in size. however, i'm a little unsure what is the best
method to get pin sharp prints from my scans.

should i be using sharpening in vuescan?, unsharp mask in photoshop?,
using the high pass filter followed by soft light in photoshop? or neat
image?

does anyone have a magic formula for high res files? as i said initially
im scanning velvia 50/100 so grain isn't much of an issue.

keith
Click to expand...


Sharpening should generally be the last step in
your workflow, or somewhere near the end. In
other words, it should be applied on the image
at print size and print resolution.

There's no magic formula. Use as much as
you dare, but bear in mind that over-sharpening
can screw up the image with various artifacts.

View the image at 100% in Photoshop as you
apply the Unsharp Mask filter.


rafe b.
http://www.terrapinphoto.com
 
i've scanned some velvia slides in using vuescan and a minolta 5400 at
the top notch resolution. i'm getting ready to print the pictures
between a4 and a3 in size. however, i'm a little unsure what is the best
method to get pin sharp prints from my scans.

should i be using sharpening in vuescan?, unsharp mask in photoshop?,
using the high pass filter followed by soft light in photoshop? or neat
image?

does anyone have a magic formula for high res files? as i said initially
im scanning velvia 50/100 so grain isn't much of an issue.

keith
Click to expand...
In my experience scans from the Minolta 5400 at max resolution don't
need any sharpening. If you are going to down sample for printing there
seems to be little visible difference between doing it in the image
editor or doing it at the scanner. Your best bet is to try a few tests
with the printer and paper you are planning to use.
Many people have different opinions on what is "sharp".
 
i've scanned some velvia slides in using vuescan and a minolta 5400 at
the top notch resolution. i'm getting ready to print the pictures
between a4 and a3 in size. however, i'm a little unsure what is the best
method to get pin sharp prints from my scans.

should i be using sharpening in vuescan?, unsharp mask in photoshop?,
using the high pass filter followed by soft light in photoshop? or neat
image?

does anyone have a magic formula for high res files? as i said initially
im scanning velvia 50/100 so grain isn't much of an issue.

keith
Click to expand...

You might find interesting a creativepro article by Bruce Fraser: "Out
of Gamut: Thoughts on a Sharpening Workflow"

www.creativepro.com/story/feature/20357.html?cprose=4-44

Bob Shomler
www.shomler.com
 
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