Hello everyone, Windows Phone OS as one special and very good feature, it is Camera lens apps. Normal you can open camera from apps, but here we can open apps (lens) from camera. This is special in Win Phone 8.0. There are many lens available in Windows phone store. And from Windows Phone 8.0 GDR2 you can set default camera app. In that few lens apps Nokia listed in there blog page. In personal like Blink and Creative Studio.
Blink : With BLINK for Windows Phone 8, you’ll never miss the best shot or the action. BLINK captures a burst of images before you even press the shutter, and continues to capture pictures after you’ve taken your shot. Save and share the shot you like best.
Creative Studio : Make more of your pictures with this quick and easy photo editor. Exclusive to Nokia Lumia, simply swipe through a series of creative effects, add focus blur or create an impressive colour pop effect. With Creative Studio you can also create a beautiful collage, quickly adjust colour balance, remove red eye. And when you’re done, share your pictures directly with friends on Facebook and Twitter.
And you can see all other here in Nokia blog page The best apps for the Nokia Lumia 1020 – part one, imaging