The screen sizes in these auditoriums are much smaller than those in the purpose-built auditoriums of the original 15/70 IMAX format, and are limited to the 1.90:1 aspect ratio.
这些放映厅的屏幕尺寸远小于原始15/70 IMAX格式的专用放映厅，并且仅限于1.90：1的宽高比。