Whilst weighing and photographing the fish is considered part of the fishing experience, this should only be necessary for larger specimens and not done as a matter of course. If you must, take any photographs as close to the water as possible, so that fish are only out for a few seconds.
Hard fighting fish need time to recuperate when being released. Hold them gently in the water until they are fully recovered, fish should kick away when ready to go. This passes oxygen rich water through the gills and assists the recovery.