This item is usually Drop Shipped from the MFR/Distributor within 7-14 business days (subject to availability). Your order will be charged at the time of placing the order with the MFR. Item is non-cancelable and non-returnable.
PayPal Orders Payments processed using PayPal will be charged immediately (as opposed to when an order ships).
International Orders Payments for international orders will be charged as soon as the order is placed.
The Vivitek 1.72-2.27:1 Standard Zoom Lens allows you to change the focal length, which enables a range of projection distances. It has a zoom ratio of 1.3:1 and a standard-throw ratio of 1.72 to 2.27:1.
Installing a zoom lens affords greater flexibility since you can alter the projection distance without actually moving the projector. This is convenient for permanently installed projectors. You can compensate for miscalculations during installation and it's possible to adjust your display proportions depending on class size or type of presentation.