Immortal hat geschrieben:Hallo.
Woran liegt es das meine Fotos nicht 100% scharf sind?
Licht sollte man reichlich Gutes haben, und die optimale Schärfe (die optimale Blende?) für das Objektiv kennen. Bei Seitenlicht verstärkt sich die Schärfe übrigens durch die Hervorhebung von Ungleichmässigkeiten.. Das ist aber nicht immer erwünscht.
Zum Nachschärfen gibt es folgende Tips für PS:
The Manny Librodo Sharpening Technique
Background copy
USM 18-40-0
USM 150-.3-0
Edit>Fade USM 100% in Darken Mode
USM 150-.3-0
Edit>Fade USM 50% in Lighten Mode
Flatten image
oder:
Since I started posting some of my S5 images recently, I've received many messages and e-mails about my processing, especially sharpening for the web. For those of you who are interested, here's how I sharpen for the web. I've used this simple yet powerful technique for little over 2 years now, and find it to be better than anything out there currently. Lot of what I'm about to write here is a result of things I've learned over the years from others more intelligent than myself, books, and articles, and a little bit of personal trial and error. I hope you find it useful. Give it a try at least, as you've got nothing to lose.
First some assumption: I'm currently using the beta version of Photoshop CS3, but the steps I outline below should also be avalable on earlier versions. I've never used Elements or another editing program, so I won't be able to comment on the steps required in those programs.
Step 1: Open up your image, preferably from a RAW file. My brief experience with the S5 tells me that the 6MP file works just a bit better than the 12MP file, but experiment and judge for yourself.
Step 2: Perform all your edits, except sharpening.
Step 3: Resize your image using Adobe's default bicubic algorithm to twice (2X) your inted final size. For exmple, if you want to ultimately post an image 800 pixels wide, then initially down-size to 1600 pixels wide.
Step 4: Choose Filter --> Sharpen --> Sharpen. Don't choose Unsharp mask or smart sharpen.
Step 5: Repeat the sharpening process (Filter --> Sharpen --> Sharpen). Here your image will look WAY oversharpened, but that's ok...trust me.
Step 6: Resize your image for the 2nd and final time to your intended dimention, again using Adobe's default bicubic algorithm (ie, not bicubic sharper or bicubic smoother). You should have a beautifully sharpened image for the web, without halos or other significant artifact. Some images will look "oversharpened" at this point. If that's your preception, after Step 5, perform: Edit --> Fade Sharpen, and chose a value between 0% and 100%. Then follow step 6 as usual. Also, some images may require a little more sharpening than what achieved from the defalut method I've outlined here. The solution is simple...Filter --> Sharpen --> Sharpen for a 3rd time and follow step 6.
Here' another little tip that may help. Let's say you're perfectly happy with your final sharpened image for the web, except for slight oversharpening at a small area, often at high contrast junctions, such as sky and mountains. In this case, simply choose the Blur tool, make your radius very small (perhaps 10 pixels), set opacity to 10% or 15% and paint over the area(s) that is(are) too sharp. Keep painting over the area(s) until the sharpening decrease is to your liking.
Good luck and let me know how you like this technique.
Mahesh
http://www.StarvingPhotographer.com
fibbo