BlattWorld, Item Details: Navitar Keystone Correction Lenses

When two or more projectors must be used for a multi-image slide show, the tilting off-axis of the projectors causes a perspective distortion called "keystoning." Navitar keystone correcting lenses are ideal for these tight throw, rear screen situations,

because they adjust to provide perfect registration and eliminate keystoning without image distortion. With their 6.35 image shift, Navitar's XY-PC lenses eliminate keystoning and deliver absolutely perfect registration in both the Kodak Ektagraphic III

and Ektapro slide projectors. Navitar's original keystone correcting PC lenses shift 3.8mm off-axis in any direction, making them your choice for most other major brands of slide projectors or in cases where you need to use the projector's auto focus f

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