Aparture 
iTunes: Understanding the iPod Photo Cache folder
When you use iTunes to sync photos to your iPhone, iPad, or iPod, iTunes creates a folder called iPod Photo Cache. The iPod Photo Cache stores photos that are optimized for display on your device. The location of this folder … Continue reading
OS X Yosemite: Unterstützte RAW-Formate von Digitalkameras
Hier erfahren Sie, welche RAW-Formate von Digitalkameras unter OS X Yosemite unterstützt werden.
iPhoto 9.2, Aperture 3.2: Keychain permissions request may appear when enabling Photo Stream
The following messages may appear in iPhoto 9.2 and Aperture 3.2 if you purchased either application from the Mac App Store, or if iPhoto came pre-installed on your new Mac with OS X Lion.
Aperture: Unexpected results when working with grayscale or other non-RGB images
Adjustments on grayscale images sometimes give unexpected results, or do not work at all.
Aperture 3: Some adjustments are not available on certain images
The Curves and Chromatic Aberration adjustments are dimmed in the Adjustments menu with some RAW images. The Quick Brush menu items are also dimmed, and the individual adjustment brush menu options are missing for these images.
Aperture 3: Dodge or Burn sometimes seem to have no effect
The Dodge and Burn adjustments sometimes seem to have no effect on certain areas of an image.
