Re: RAW & sharpening
David, My experiments with the sharpening of RAW files is just preliminary yet, but one thing I have noticed. Images with high contrast areas (like the example Rob Brigham posted the other day), will benefit from adjusting chromatic aberration first. Would be interesting to see comparisons of different ways of sharpening, btw. For example RAW sharpening vs. conversion to LAB and channel sharpening. Cheers, Jostein - Original Message - From: "David Madsen" <[EMAIL PROTECTED]> To: "Pentax Discuss List" <[EMAIL PROTECTED]> Sent: Sunday, March 14, 2004 11:50 PM Subject: RAW & sharpening > I just tried the RAW plug-in for Photoshop with great success. I do, > however, need a refresher course on sharpening. I am having trouble finding > the balance between too much and not enough. > > David Madsen > mailto:[EMAIL PROTECTED] > http://www.davidmadsen.com >
Re: RAW & sharpening
I find the PS CS raw converter sharpening is much more subtle than the PhotoShop tool. I generally go to 50 or 55. I don't know what those numbers mean, but the results look good an print nicely. Paul On Mar 14, 2004, at 5:50 PM, David Madsen wrote: I just tried the RAW plug-in for Photoshop with great success. I do, however, need a refresher course on sharpening. I am having trouble finding the balance between too much and not enough. David Madsen mailto:[EMAIL PROTECTED] http://www.davidmadsen.com
Re: RAW & sharpening
Hi Dave ... There's no "magic number" for sharpening, and there are several techniques. Assuming that you're using a digital image for the base, convert to lab mode, and bring up the lightness channel. Sharpen only that channel. Set the threshold to zero, pixels to one, and USM sharpness to 10. Then keep sharpening until the image looks too sharp, and back off. If after backing off, the image looks too soft, go into USM and set the next increment lower, to four or five. Now, that'll get your pic sharp for the web. As for sharpening for printing, there are no absolutes. It all depends on the size you're going to end up with, the amount of detail on the print, whether color or B&W. A good guide line is to sharpen 10 about 100, and go from there. If you look at the image at 100% on the screen, that should give you some sense of how it will look on the paper. David Madsen wrote: > > I just tried the RAW plug-in for Photoshop with great success. I do, > however, need a refresher course on sharpening. I am having trouble finding > the balance between too much and not enough. > > David Madsen > mailto:[EMAIL PROTECTED] > http://www.davidmadsen.com
