Lyn
The lightweight and fast image browser and viewer for Mac OS X designed for Photographers, Graphic Artists and Web Designers.
Featuring an extremely versatile and aesthetically pleasing interface, Lyn delivers an easy to use geotagging technology and a complete solution for sharing your photographs.
Lyn natively supports all popular image formats like JPEG, TIFF, JPEG 2000, PNG, TGA, RAW, HDR, OpenEXR, PPM, animated GIF and any other image format supported by Mac OS X.
Features
* Progressive display, on single or multiple monitor configurations, of images of virtually any size
* Multi-threading to take advantage of multicore CPUs
* Display color corrected images and soft-proofing function
* Compatible with High Dynamic-Range images like TIFF float as well as Radiance and OpenEXR
* Common metadata parser: Exif, Camera's makernote, GPS, GeoTIFF, and IPTC
* Image navigation with Apple Remote Control or Magic Trackpad
* User switchable thumbnails' cache
* Filtering by tags and metadata
* Fullscreen and slideshow with music
* Full IPTC editing with user-defined presets
* Batch operations: convert and rename
* User defined places
* Non-destructive editing for image transformations
* Easily browse iPhoto, Aperture, and Lightroom libraries
* Share your images on Facebook, Flickr, Dropbox, SmugMug, 500px and Picasa Web Albums
Required OS: 10.5
Tags:
dropbox
, smugmug
, 500px
, geotagging
, picasa
, flickr
, facebook
, viewer
, image
, browser



2 Opinions
Opens any image file, loads fast. If you rename files or folders in Finder, Lyn viewer instantly reflects that. Easy to use, many convenience features. App frequently updated.
Clean and simple interface. I think it complements Picasa, which is a bit too crowded.