Apple today released separate Digital Camera RAW Support Updates (PPC, Universal versions).
Mac OS X Tiger provides support for a variety of popular digital camera and image file formats. Applications such as Aperture, iPhoto and Preview utilize this support to work with digital camera RAW files. This update improves RAW file format compatibility for the following digital SLR cameras:
-Canon Digital Rebel XTi / 400D / Kiss X Digital
-Pentax *ist DS
Other issues addressed:
-Handling of large Canon RAW files (.CRW)
-DNG compatibility on Intel-based Macs
-Lines sometimes appearing in images exported from Aperture
More info and download link for Digital Camera RAW Support Update (PPC, 1.4MB) here.
More info and download link for Digital Camera RAW Support Update (Universal, 2.4MB) here.
Related MacDailyNews article:
Apple releases Aperture 1.5.1 Update – November 02, 2006