Extra-Long zoom, Throw ratio 4.0 ~ 7.2, Zoom ratio 1.8x.

ZK750 / ZK1050 : throw ratio 2.83-5.66, ZU1700 / ZU1900 / ZU2200 : throw ratio 2.0 ~ 4.0:1

ZU1700 / ZU1900 / ZU2200 : throw ratio 0.84~1.02:1

ZK750 / ZK1050 : throw ratio 1.7-2.12, ZU1700 /ZU1900 / ZU2200 : throw ratio 1.2 ~ 1.5:1

ZU1700 / ZU1900 / ZU2200 : throw ratio 0.65~0.75:1

Throw ratio : 0,36

ZU1700 / ZU1900 / ZU2200 : throw ratio 7.2~10.8:1