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The 11-mile long, 600 lbs IMAX print of ‘OPPENHEIMER’ (i.imgur.com)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 11 points 1 year ago* (last edited 1 year ago) (1 children)

Despite being what a lot of analog fetishists focus on, a purely analog editing chain is not necessarily what causes the effects that they actually like about analog media. Most of it comes from the playback media itself. In the case of vinyl records, there's mastering techniques that have to be used to make sure the needle stays in the groove that some people feel sound better. There's minute harmonic distortions that people prefer over the perfectly clear and clean sound of digital. In the case of film payback, you have actual image frames being flashed on the screen. You have shutter dwell where no image is shown at all while the next frame is being advanced. You'd never consciously notice the flicker, but it affects the way you perceive the image and the motion on the screen. Film can have very high contrast and there may also be minor differences in color profile due to being displayed by pigments rather than being created digitally. Most digital media these days is technically far superior to it's analog counterpart. It just happens that it's the limitations and artifacts of the analog media that some people find pleasing.

[–] [email protected] 4 points 1 year ago (1 children)

Yeah, I like vinyl too. But digital to analog conversion is always imperfect. I don't see that being too fitting for an IMAX cinema, where the aim is just biggest and best, no niche. Aesthetic imperfections are more fitting for arthouse and such I think.

However, I read into it some more now and it's quite interesting. In the case of Oppenheimer, they actually do manage to avoid the digital conversion for much of the film!

For movies shot on film, all of the film negatives are scanned to digital files so that they can be edited using AVID, and the process continues as before. The finished movie can then be "printed" back on to physical film using a laser scanner, which is how most film prints are made these days. However, some filmmakers like Christopher Nolan refuse to use this method, because it doesn't allow you to take full advantage of the resolution of IMAX film. So in Nolan's case, once the movie is finished, an Edit Decision List (EDL) is created, which contains a text list of all the edit points in the film, and which physical pieces of film negative those correspond to. Then, a person called a Negative Cutter actually physically cuts together and assembles the film negative to create the movie in the analog realm. It's a very specialized profession - there are only one or two people in Hollywood that still do it!

[–] [email protected] 2 points 1 year ago

That's pretty cool. Of course Christopher Nolan would insist on editing on film. I bet Tarantino and a few others would as well. In the case of laser printing vs optical printing, he's probably right, especially at IMAX scale. And you're absolutely right that he's choosing it because it's the highest possible fidelity, whereas someone like Tarantino chooses film for sentimental, kitsch, and artistic reasons. Apparently digital IMAX is still only about 4k at best. In the audio world though, analog DACs really are perfect reproduction many times beyond what is perceptible in sound. Compared to cutting to vinyl from tape, or even transferring from tape to tape, digital is orders of magnitude higher fidelity to the source signal. There's lots of reasons to love analog audio, but higher measurable fidelity is not among them.