film perforations造句

• This film is also notable as the first known instance of film perforations being used.
• Fourth, it can cause subsequent processing difficulties for the negative, because the registration pins will be engaging the film perforations on their opposite sides to normal.
• Most cameras use pulsed timing marks along the edge of the film ( either inside or outside of the film perforations ) produced by sparks or later by LEDs.
• "' Negative pulldown "'is the manner in which an image is exposed on a film stock, described in the number of film perforations spanned by an individual frame.
• Because Maxivision uses only three film perforations per frame, the twenty-four-frame-per-second format uses 25 % less film than standard optical sound track which is rarely used now.
• These cameras featured a " 7P " format, meaning that each image was 7 film perforations ( sprocket holes ) wide, yielding 11 stereo pairs on a 20-exposure roll of 35 mm film.
• The members of that congress agreed no longer to sell films, but rather to lease them for four-month periods, only to members of their own organization, and to adopt a standardized film perforation count on all films.
• To reduce the strain imposed on the film as the mechanism in each device pulled it down three frames at a time, frame height was reduced from the usual four film perforations to three, resulting in a widescreen image format identical with the modern 16 : 9 aspect ratio.