Shows camera settings from Exif when floating the mouse over a photo
Displays exif info overlaid on top of pics in flickr when you float the mouse above a pic.
WARNING: there can be a significant delay as the exif data is fetched; sometimes you may need to return to a pic a few seconds later. And on groups and explore, flickr does some strange stuff that can delay the extension's activation.
When learning photography you need to see the settings used to take the shot. Instead of laboriously clicking through to a photo's Exif data, with this extension you can just float the mouse above a photo and the info will reveal itself a moment or two later.
Also includes Lens and camera info, and gives the 35mm (fullframe) equivalent focal length in brackets if the exif supplies it.