Version 0.3.4 is available upstream. Please consider updating!
It seems that version 0.3.4 is available upstream, while the latest version in the Gentoo tree is 0.3.4_rc1. You think this warning is false? Read more about it here.
The project provides a database of photographic lenses and a library that allows advanced access to the database including functions to correct images based on intimate knowledge of lens characteristics and calibration data.