Originally posted by IchabodCrane No, Aperture is a stand-alone app that you purchase. It uses the iPhoto library structure so there's no conversion needed for anyone who already was using iPhoto.
Actually, iPhoto now uses the Aperture library structure and processing engine.
And to answer @rawr, yes, Digital Camera RAW Compatibility is an OS level service in OS X. The latest update added the D5300, Df, OM-D E-M1 and the 2 Alpha 7s. I think it's obvious that Ricoh is dropping the ball here by not getting Apple the info they need to update RAW for the K-3. On the other hand the 645D was just added a few months ago...