■Keystone Correction Range The table here lists the adjustment range for each correction method. H/V-Keystone If the projectorʼs angle of tilt is within the following range, you can correct distortion in the projected image by using the H/V-Keystone correction function. Curved Surface You can correct the image shape if the curved surface is a part of an exact circle. The values in the table are the minimum values for R/L in the illustration. (Approximate value when projecting at maximum zoom.) If the R/L value is lower than the value in the table, you cannot correct the image shape. You can confirm the maximum projection distance (L) using the following formula.
L = R/value in the table Horizontally curved surface 27 Vertical Direction Horizontal Direction EB-L890E/EB-L895E/EB-L690E/EB-L890U/ EB-L895U/EB-L790U/EB-L690U/EB-L790SE/ EB-L795SE/EB-L790SU/EB-L690SU/ CB-L890E/CB-L895E/CB-L690E/CB-L890U/ CB-L895U/CB-L790U/CB-L690U/CB-L790SE/ CB-L795SE/CB-L790SU/CB-L690SU/CB- L590SE -30° - 30° -30° - 30° EB-L690SE/EB-L695SE/ CB-L690SE/CB-L695SE -25° - 25° -25° - 25° Concave L R A: Screen B: Center of the circle of which the curved surface is an arc L: Projection distance R: Radius of the circle of which the curved surface is an arc Convex L R A: Screen B: Center of the circle of which the curved surface is an arc L: Projection distance R:
Radius of the circle of which the curved surface is an arc Vertical Lens Shift: Home Position Vertical Lens Shift: Top Vertical Lens Shift: Home Position Vertical Lens Shift: Top EB-L890E/EB-L895E/ EB-L690E/EB-L890U/ EB-L895U/EB-L790U/ EB-L690U CB-L890E/CB-L895E/ CB-L690E/CB-L890U/ CB-L895U/CB-L790U/ CB-L690U 0.3 0.3 0.64 0.65 EB-L790SE/EB- L795SE/EB-L790SU/ EB-L690SU/EB- L695SU/ CB-L790SE/CB- L795SE/CB-L790SU/ CB-L690SU/CB- L695SU/CB-L590SE 0.41 0.41 1.49 1.53 EB-L690SE/EB- L695SE/ CB-L690SE/CB- L695SE 0.51 0.8 3.4 3.52