Compatible only with Mac OS X and being somewhat reminiscent of the operating system's iPhoto application, Aperture 3 is an excellent tool for organizing photos into libraries and projects.
For the truly brave and creative, digital photo-editing software such as Adobe Photoshop or Aperture for Mac allows users to adjust or digitally manipulate the photography to add in artistic effects.
The manual shooting controls are extremely simple to operate, and there is a ring around the lens that can be turned to change aperture, shutter speed, focus, zoom, and many other settings.
When taking shots of the moon at night you will get far better results if you manipulate the flash yourself and manually set ISO, shutter speed, and aperture.
Certain digital cameras may also include semiautomatic modes such as shutter and aperture priority; these modes allow you control over an aspect of the process and allow the camera to choose the settings to best accommodate your choice.