List of 70mm films on Bluray?

[Dubstar]

Originally Posted by Lyle_JP

Well, "filmed" in 35mm doesn't tell the whole story. It was photographed onto Black and White VistaVision film (which is 35mm fed sideways through the camera) with an anamorphic lens and with each frame being shot three times through filters; once for blue, red, and and green. So while the negatives are technically 35mm, they're not anything that could be "watched" through a projector.



This was common until the early 90s. Before the wide acceptance of digital sound, 70mm was the only way to experience 6-channel sound (in either 4.2 or 5.1 channel configurations). DTS and Dolby Digital put an end to blowing up 35mm to 70mm.

I didn't think that sound was the necessary factor in that. Sure 70mm later had 5.1 sound with split surround tracks, but originally, 6-track sound was configured with five channels of sound from the screen plus one mono surround track - 8-channel Sony Dynamic Digital Sound recreated that aspect of original 70mm 6-track sound (five channels behind the screen + split surround + bass). As I understand it, 70mm blowups of 35mm films is similiar to what happens to films nowadays thare are DNR'd to IMAX specs, essentailly uprezzed to 70mm visual specs.