macscreen capture
⌘ + Shift + 3
The screen capture shortcut on the Mac is one of the most useful tools I know. It grabs the screen and neatly places a .png file onto your desktop.
But is this the highest quality screen capture you can get? Is it possible to get a higher resolution screen capture? Are there any ways to tinker with the settings of this command?
You need a Mini DisplayPort to Dual-Link DVI Adapter since your monitor doesn't support Mini DisplayPort.
Works for me quite happily.
Have you restarted UIserver?
killall SystemUIServer
Does the path exist?
UPDATE: If the screen capture cannot find or write to the designated folder, it will default to the current user's desktop.
Best Answer
The PNG is losslessly compressed; there's isn't a possible better-quality screenshot.