STEP 3:
using the lens
It is recommended to use the lens as a fixed device to convert the projector to the native 2.4:1 device. In the fixed setup the vertical expansion for the 2.4:1 material, as well as the horizontal squeeze for the 16:9 material is done electrically by the projector or media device. Since the expansion ratio of this lens can be steplessly adjusted, the lens is suitable both with projectors of native 1.78:1 and 1.9:1 panels. Depending on the used projector, the corresponding expansion ratios will be tuned to 1.35x and 1.26x respectively by the lens knobs.
maintenance
Only use optically safe lens cleaning solutions and a clean, lint-free cloth for wiping the optics. It is possible to use mild solvent like alcohol to remove dirt or fingerprints. In order to clean the prisms and the front element from both sides, the bottom plate and the front element of the lens can be temporarily removed.