The Filter and Spectral Confocal Systems are equipped with super corrected Olympus 60x, NA 1.4 microscope objectives. The PLAPON60XOSC lenses provide less chromatic aberration when working with lasers from 405nm up to 650nm. What does this mean for you? If you are using DAPI or other dyes in this excitation range, your images will look much more uniformly bright! For optimal image quality please use an optical zoom of at least x2 when imaging.