Welcome to Sprocket School! This project is maintained by volunteer editors. Learn more about how this works.

70mm: Difference between revisions

From Sprocket School
Jump to navigation Jump to search
 
(5 intermediate revisions by the same user not shown)
Line 3: Line 3:
'''70mm''' is the largest standard exhibition [[film gauges|film gauge]].
'''70mm''' is the largest standard exhibition [[film gauges|film gauge]].
*aspect ratios
*aspect ratios
*sound formats
*[[Magnetic sound]] and noise reduction
*dts discs
*[[DTS]] discs
[[File:Degaussing.png|right|thumb|400px|Instructions on proper demagnetizing/degaussing of equipment.]]
[[File:Degaussing.png|right|thumb|400px|Instructions on proper demagnetizing/degaussing of equipment.]]
*handling of mag prints/degaussing
*handling of mag prints/degaussing
Line 14: Line 14:


==IMAX==
==IMAX==
'''IMAX''' is a 70mm film format  on which the image is printed horizontally, resulting in a much larger filmed image than conventional 70mm.
'''IMAX''' is a 70mm film format  on which the image is printed horizontally, resulting in a much larger filmed image than conventional 70mm. It's often referred to as 15/70, 15 being the number of perforations in a single frame.  
<gallery widths=250px heights=250px>
<gallery widths=250px heights=250px>
File:Imax.jpeg|A frame of [[IMAX]] film.
File:Imax.jpeg|A frame of [[IMAX]] film.
File: Imax 2.jpeg
File: Imax 2.jpeg
</gallery>
</gallery>
==5 perf 70mm==


==Related Articles==
==Related Articles==
Line 28: Line 30:
*[https://en.wikipedia.org/wiki/IMAX Imax Wikipedia entry]
*[https://en.wikipedia.org/wiki/IMAX Imax Wikipedia entry]


==Images of Various Aspect Ratios and Sound Formats, 70mm==
==Images of Various Aspect Ratios and Sound Formats, 5/70mm==
<gallery widths=250px heights=250px mode=packed>
<gallery widths=250px heights=250px mode=packed>
File:Aliens_70mm.JPG| Frames from a 70mm print of ''Aliens''. Blow-up from 35mm, aspect ratio 1.85, magnetic audio track.
File:Aliens_70mm.JPG| Frames from a 70mm print of ''Aliens''. Blow-up from 35mm, aspect ratio 1.85:1, magnetic audio track.
File:Mad mad world.JPG| Frames from a 70mm print of ''It's a Mad, Mad, Mad, Mad World''. Aspect ratio is 2.76:1 (Ultra Panavision) with a DTS audio track.
File:Mad mad world.JPG| Frames from a 70mm print of ''It's a Mad, Mad, Mad, Mad World''. Aspect ratio is 2.76:1 (Ultra Panavision) with a DTS audio track.
File:2001 70mm.jpg| Frames from a 70mm print of ''2001:A Space Odyssey''. Aspect ratio 2.2:1 with magnetic audio track
File:2001 70mm.jpg| Frames from a 70mm print of ''2001:A Space Odyssey''. Aspect ratio 2.2:1 with magnetic audio track
File:IV alignment chartcopy.JPG| Alignment chart from a 70mm print of ''Inherent Vice''. Blow-up from 35mm, aspect ratio 1.85
File:IV alignment chartcopy.JPG| Alignment chart from a 70mm print of ''Inherent Vice''. Blow-up from 35mm, aspect ratio 1.85:1
File:70mm print sm.jpg|Inspecting a 70mm print of ''West Side Story''. Aspect ratio 2.2:1, DTS audio track
File:70mm print sm.jpg|Inspecting a 70mm print of ''West Side Story''. Aspect ratio 2.2:1, DTS audio track
File:70MM test.JPG|Boston Light and Sound 5/70 test film on screen
File:70MM test.JPG|Boston Light and Sound 5/70 test film on screen
Line 41: Line 43:
[[Category:70mm]]
[[Category:70mm]]
[[Category:Film prints]]
[[Category:Film prints]]
[[Category:Film handling]]

Latest revision as of 18:39, 23 February 2019

A few frames of 5 perf 70mm film.

70mm is the largest standard exhibition film gauge.

Instructions on proper demagnetizing/degaussing of equipment.
  • handling of mag prints/degaussing




IMAX

IMAX is a 70mm film format on which the image is printed horizontally, resulting in a much larger filmed image than conventional 70mm. It's often referred to as 15/70, 15 being the number of perforations in a single frame.

5 perf 70mm

Related Articles

Resources

Images of Various Aspect Ratios and Sound Formats, 5/70mm