Specifications:

Product type Standard zoom lens for projector

Model AN-PH31EZ

Type of lens Zoom lens

Picture size (diagonal) 40'' to 500'' (4:3)

Focal length 25.6 mm (1/'') – 31.3 mm 

F no. 1.8 – 2.0

Throw ratio 1:1.8 – 2.2

Lens ring (silver flange) 

Note: Professionally maintained and teched prior to shipment.