BTFlip for Mac

From Brian Toth:

BTFlip is the fastest image viewing application for Mac OS X. With it, you can quickly flip through large amounts of images in a folder and rename and delete those images as you go.

Version 2.0 features

• Much faster image browsing
• Properly supports Finder aliases
• Improved preview drawer responsiveness
• Proper scaling of images to screen resolution
• Deleting images
• Single rename and batch renaming of images
• Smart window zoom
• Zoom to full size button and menu
• Scale to Fit button and menu
• Displays copyable image file path
• Preview drawer no longer retains focus after double-clicking, allows for improved work flow
• Open Recent... menu item
• Remembers last folder opened
• Minor bug fixes with redraw issues

• Multithreaded for fast image loading
• Flip through all images in the current folder using:
  • Toolbar arrow button
  • Up and Down arrow keys
  • Mouse scroll wheel
• View images four different ways to suit your needs:
  • View all images at 100% regardless of window size
  • Scale images to fit the current window size
  • Auto-size the window to fit the image up to the max size of your screen
  • or... Auto-size the window while scaling images that are too large to fit the screen
• Preview drawer for finding the image you want quickly
• Supports most common image file types