... Correction:±30° Vertical,Automatic keystone correction 3D Compatibility3D-Ready:Meet and Support the 3D Red-blue, Red-green Film Source ... ),EDTV (480p, 576p),SDTV (480i, 576i) Optical ComponentsStandard Fixed Lens:F=1.8, f=9.02mm,Short Throw/Wide ... -ROM), Lens cover,Warranty card, certificate, etc.Optional Accessories:Projection Screen, Remote, … Basic informationNoise Level :31dB/28dB(Standard/Economy ...