Aspect ratios: Difference between revisions

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===Determining 35mm aspect ratios for projection===
===Determining 35mm aspect ratios for projection===


For some [[film gauges]], the aspect ratio will be obvious. 16mm is rarely anything but full frame (though there are variations - see [[16mm]] page). Other small gauges are rarely anything but their native aspect ratios. [[35mm]], however, can be complicated.
For some [[film gauges]], the aspect ratio will be obvious. 16mm is rarely anything but full frame (though there are variations - see [[16mm]] page). Other small gauges are rarely anything but their native aspect ratios. [[35mm]], however, can be complicated. Determining aspect ratio is one of the reasons that prints should be inspected before being run. See [[Inspection]] for more details on the process.


* The first way to determine the aspect ratio is to find out when the film was made and using your knowledge of film history, assign its aspect ratio.
* The first way to determine the aspect ratio is to find out when the film was made and using your knowledge of film history, assign its aspect ratio.
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Be aware that there are always exceptions to any these rules. And: don't just trust IMDb!
Be aware that there are always exceptions to any these rules. And: don't just trust IMDb!


* Determining correct aspect ratios for widescreen, etc.
** Determining correct aspect ratios for widescreen, etc.
** Do not always trust what's written on the can or on the print! If you receive a print that is incorrectly labeled (and you are certain of it) make sure to correct it.  
** Do not always trust what's written on the can or on the print! If you receive a print that is incorrectly labeled by another venue or projectionists (and you are certain of it) make sure to correct it or remove the label. If the label is from the distributor or archive, don't remove it but make a note that the information is incorrect.
** Eyeballing and measuring
** Eyeballing and measuring
** Educated guesses based on year, studio, country, etc
** Educated guesses based on year, studio, country, etc