http://www.macupdate.com/info.php/id/9483
Photo Mechanic is a photographer's image browser tool. It is the answer for professional digital photographers looking for a fast and easy-to-use image browser for digital camera files. Photo Mechanic's innovative batch captioning, renaming, speedy browsing, and Photoshop connectivity features have made it the choice of thousands of photojournalists and professional photographers worldwide. Optimized for use with professional cameras from Nikon, Canon, Olympus and Pentax, Photo Mechanic has become the standard tool for digital image browsing. Photo Mechanic is a standalone image browser that lets you view your digital photos with convenience and speed. Photo Mechanic displays the "thumbnails"
