Press and hold the Alt key while adjusting the Radius. It will show a high-pass looking overlay that shows the edges in the picture. As you slide the slider, the overlay will show you the effect of the changes.
On Mon, Nov 18, 2013 at 6:40 PM, Igor Roshchin <s...@komkon.org> wrote: > > > I thought I would ask the gurus of digital processing here on PDML about > this first. When you sharpen images, how do you choose the "Radius"? > > Yes, I read in the guides this: > "Radius: Controls the size of the edges you wish to enhance, where a > smaller radius enhances smaller-scale detail. You'll usually want a > radius setting that is comparable to the size of the smallest detail > within your image." > > But how do you practically determine that, say in LR? You cannot tell > the difference if it is 0.9 or 1.1 pixels. > > Also, several years ago, I remember seeing an advice somewhere (possibly > here), where a person used 0.9 or 0.8 value for that radius. But I never > understood why. Any idea? > > Thanks, > > Igor > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- David Parsons Photography http://www.davidparsonsphoto.com Aloha Photographer Photoblog http://alohaphotog.blogspot.com/ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
