As a long term supporter since its early days I find that Lyn has the potential to be top of the class, with easy, clear usage for examining and comparing image files . . BUT, unfortunately, the zoom settings do not work satisfactorily (using OS 10.8.3).
Testing with a mixed sample, in Lyn's List View:
1. On "Zoom to actual size" all samples showed appropriately.
2. On "Zoom to fill screen" some JPG files responded to fill the display screen showing the complete image, but others, and all the PNG, ICNS, TIF and GIF files, expanded to fill the screen on the smallest dimension resulting in the window having to be scrolled in order to see the rest of therimage.
3. On "Zoom to fit screen" no images appeared at all with a single click, while a double click produce separate little icons on the desktop.
I have not yet been able to set the application to reliably show an entire image at is maximum possible size in the viewer window, a basic necessity for a viewer as in Phoenix Slides, Sequential, and MultiThumbs, and until such time as Lyn can do so I will regretfully leave it alone and use the others which do.