I just release a new android app which serve as complete reference and buying guide for all Canon and Nikon mount lenses. It also include feed of this canonrumours site so you can surf it on the go.
This app is developed base on my own experiences as a photographer looking for and shopping the right lenses for my need.
So think it would be handy for other photographers as well.
You can check it out at Diaphragm - Canon & Nikon Lenses
Any feedback would be more than welcomed
