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Grubhead · 12th Feb 2019, 2:07 am

As far as I am aware all cameras use the old 35mm format, which would give you a 16:9. The old style movie cameras used to mask sections of to give a 4.3 picture, since some of it was used for the sound system. It makes sense to send a signal in 4.3 as it would require less space to be transmitted. Then with the anamorphic system, squash the 16:9 to fit a 4.3 picture. Which is what happens. If you select 4.3 on your TV on a full screen 16.9 true widescreen picture, it will appear as a squashed picture. That way the broadcast can still send out a 4.3 picture and it will appear as a normal image on the TV. If the broadcaster was sending out 16.9 all the time a 4.3 TV would have to squash them down. And the broadcaster would have to send out black bars on the left and right to maintain a 4.3 picture looking right on a 16.9 screen. However the 4.3 on a 4.3 TV would then be unwatchable.
Black bars are still added to the signal of a 16.9 picture to show any movie of a greater aspect than 16.9.

12th Feb 2019, 2:07 am	#30
Grubhead Heptode Join Date: Dec 2016 Location: Sheffield, South Yorkshire, UK. Posts: 539	Re: True "Cinemascope" TV. As far as I am aware all cameras use the old 35mm format, which would give you a 16:9. The old style movie cameras used to mask sections of to give a 4.3 picture, since some of it was used for the sound system. It makes sense to send a signal in 4.3 as it would require less space to be transmitted. Then with the anamorphic system, squash the 16:9 to fit a 4.3 picture. Which is what happens. If you select 4.3 on your TV on a full screen 16.9 true widescreen picture, it will appear as a squashed picture. That way the broadcast can still send out a 4.3 picture and it will appear as a normal image on the TV. If the broadcaster was sending out 16.9 all the time a 4.3 TV would have to squash them down. And the broadcaster would have to send out black bars on the left and right to maintain a 4.3 picture looking right on a 16.9 screen. However the 4.3 on a 4.3 TV would then be unwatchable. Black bars are still added to the signal of a 16.9 picture to show any movie of a greater aspect than 16.9.