Optoma - 84.10 mm to 149.80 mmf/2.2 - Long Throw Zoom LensDesigned for professional projection installations, the Optoma 84. 10 mm to 149. 80 mm f 2. 2 Long Throw Zoom Lens delivers exceptional flexibility, clarity, and control in classrooms, conference rooms, auditoriums, and event venues. This long throw zoom optic provides precise framing from distant throw distances, enabling presenters to reach large screens with ease without repositioning the projector. The 1. 8x optical zoom range lets you adapt