Variable vs Moveable

• Compared to the moveable lens systems with a 'sled', Prismasonic’s variable lenses are more compact and cost effective but still offering exremely high optical performance.


• With Prismasonic’s variable lens you can adjust the picture width to perfectly match the screen no matter if the screen ratio is 2.35:1, 2.37:1 or even 2.40:1. This adjustment is impossible with fixed moveable lens systems.


• If the movable fixed lens introduces any horizontal or vertical offset, after moving the lens away from the beam, it will be shown as an asymmetric location of the 16:9 image on a 2.37:1 screen. Since the Prismasonic’s variable lens always has its optics in front of the projector’s light beam, this offset will be the same for both 2.37:1 and 16:9 pictures. Thus the perfect position for images of all aspect ratios is maintained on a 2.37:1 screen.


• With our variable lens it is also possible to achieve full panel resolution for intermediate aspects such as 1.85:1 and 2.00:1. This is not possible with fixed moveable lenses.


• Some projectors have designed their exhaust fans expel the unit’s heat out the front next to the optics. “Parking” a lens assembly in the heated air’s path may pose a serious problem to both the projector and to the fixed moveable lens. Prismasonic lenses always stay out of the way, directly in front of the optics thus allowing the front ventilation of projector to operate as its manufacturer originally intended.


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