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Sharpening for prints

Discussion

4 replies
Posted by Chris Lloyd on April 6, 2007 at 3:43 PM
Hi Everyone,

I was wondering if anybody could recommend the USM values that they use when sharpening for prints, from 7x5 to A3 because I cannot seem to get the shot to look right on screen without it looking too grainy/over sharpened.

Thanks in advance.

Kind Regards
Chris
www.c-m-l.com
:toast: :toast: :toast:
Posted by Justin on April 6, 2007 at 3:57 PM
Chris,

Giving specific amounts may prove of little value as each case will vary on many factors,including:print size,paper type,image content,camera used,lens used,image quality,etc.etc.

I find having the image displayed on screen at 50% gives the most accurate guide to how the actual print will look.
If viewed at 100% the image will tend to look quite over sharpened and noisy on screen making it quite hard to accurately evaluate what the intended print will look like,could this be the problem you're having?

Posted by Kevin Lewis on April 6, 2007 at 5:04 PM
View at 50% of full size and aim for an image that looks slightly oversharp at the 50% magnification
Posted by Chris Lloyd on April 7, 2007 at 2:41 AM
Thanks to those that replied, maybe that is the problem that I'm zooming in too much and trying a good image at 100% instead of at 50%. Will give that ago, Cheers.

Chris :toast:
Posted by PhilH on April 10, 2007 at 3:37 AM
Hi,

Justin and Kev are quite right, don't try to evaluate sharpening at 100%, 50% should be good for judging any sharpening for print and 25% is normally pretty close to looking how it will look in print, most sharpening methods depend on halos to enhance the contrast around edges to give the impression of sharpness (goes back a long way to an old analogue photography technique) the trick is to keep those halos within acceptable bounds...

All the best

Phil