4. Using On-Screen Menu624-5. Menu Descriptions & Functions [SETUP][GENERAL]Correcting Keystone Distortion Manually [KEYSTONE]You can correct horizontal or vertical keystone, pincushion LEFT/RIGHT or TOP/BOTTOM, or corner-stone distortion manually.NOTE:• [KEYSTONE HORIZONTAL] and [KEYSTONE VERTICAL] can be adjusted at once.• To change from one item to another item, reset the first item.• Adjustment values will be overwritten. They will not be deleted even when the projector is turned off.• Using [KEYSTONE], [PINCUSHION] and [CORNERSTONE] correction can cause the image to be slightly blurred because the correctionis made electronically.KEYSTONE HORIZONTAL Corrects horizontal keystone distortion. (→ page 28)KEYSTONE VERTICAL Corrects vertical keystone distortion. (→ page 28)PINCUSHION LEFT/RIGHT Corrects pincushion distortion at the left or right side. (→ page 39)PINCUSHION TOP/BOTTOM Corrects pincushion distortion at the top or bottom side. (→ page39)