I mentioned previously about exposing to the right on your histogram and this will result in much better captures as for amount of detail. When your shadows are very dark and your histo is stacked to the left from underexposure, when you go into Photoshop to open up those shadows, noise begins to appear and this is hard to completely eliminate. Exposing to the right gives the shadows better shadow detail to start with. When metering a general scene of moderate tones, such as normal daylight outdoors, you can really just point the camera and set the exposure according to the meter. IThe content you are trying to access is only available to members. Sorry.
