Masking: Difference between revisions

Although less common than fixed height screens, some theaters have fixed-width screens on which the picture area becomes taller for narrower aspect ratios and shortens for wider aspect ratios. This is common in theaters built before the widescreen era that retained their original screen footprint (ex., installing a wider screen in front of the original proscenium). It is also common in theaters in which the width of the auditorium is the limiting factor, such as single screens that have been twinned.