CIMES-FISHEYE is a package of free programs for the analysis of hemispherical photographs (HP) of forest canopies, to extract key canopy attributes like solar radiation indices, leaf area index, canopy openness, etc. These programs offer a unique set of features for film and digital hemispherical photography:? Ability to process both grey-toned and classified images? A variety of algorithms to invert gap fraction data? Values for sky segments and overall values? Works on any range of zenith and azimuth view angles? Single photosites or whole plots (transects, grids, etc.)? Correction for slope (LAI and solar radiation)? Tools to account for foliage clumping? Spherical statistics for gap fraction distribution? PAR interception, sun-fleck dynamics.