Variable vs Moveable

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


• With variable Prismasonic lens one can adjust the picture width to match the screen perfectly no matter if the screen ratio is 2.35:1, 2.37:1 or even 2.40:1. This is not possible with the fixed moveable lens system.


• 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 variable Prismasonic lens has the optics always in front of the 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 variable lens it is possible to achieve full panel resolution for also intermediate aspects such as 1.85:1 and 2.00:1. This is not possible with fixed moveable lenses.


• Some projectors have the front ventilation next to the optics. It can be defective for the projector to 'park' the lens in front of the air ventilation with the fixed moveable lens. Prismasonic lens stays always in front of the optics thus allowing the front ventilation of projector to operate in an appropriate way.


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Specifications