How does IMAX work

[rocketrazor]

I saw Batman Vs Superman the other day in IMAX 3D and really enjoyed the film, however it did get me wondering. When watching IMAX at home on a standard TV the IMAX scenes fill the entire screen while the non IMAX screens revert back to normal black border viewing. In the cinema however this doesn't happen, so how do they get around the scenes not filmed in IMAX when viewing on an IMAX screen?

Cheers

Rocket

 

[Paul.]

IMAX is essentially massive film. Traditionally the film stock used to shoot a film is 35mm, like the stuff we used to use in our stills cameras.

imax film is usually around 70mm so captures a colossal amount of detail, modern digital cameras can beat 35mm but still not 70mm.

Imax is not always a 16:9 aspect ratio, people like Nolan use 16:9 in batman etc to try and eek out some of the extra detail the expensive 70mm film on people's compromised home TVs. The film width never cganges but the horizontal resolution is chosen by the director.

 

[spiny norman]

IMAX is essentially massive film. Traditionally the film stock used to shoot a film is 35mm, like the stuff we used to use in our stills cameras.

imax film is usually around 70mm so captures a colossal amount of detail, modern digital cameras can beat 35mm but still not 70mm.

Although some IMAX cinemas use digital projection, not film.

 

[rocketrazor]

my understanding is not all the film is IMAX captured, so the scenes that aren't IMAX being shown on an IMAX screen what happens to these so that the picture doesn't change? I do hope i'm making sense in my wording?

If the screen is full for IMAX shots how does it stay full for non IMAX shots, maybe I need to google the 35mm and 70mm to see.

Cheers

 

[bigboss]

I'm pretty sure that when I watched The Dark Knight on IMAX screen, the aspect ratio changed, and the 6 scenes that were shot with an IMAX camera, the picture became larger.

 

[bigboss]

Check this link.

"Mr. Nolan shot parts of “The Dark Knight” using Imax cameras, with 30 minutes of such footage making it into the final film. When those images were seen in an Imax theater, they filled the screen from top to bottom with a giant, high-resolution image."

It did change in IMAX cinema as well.

 

[rocketrazor]

um, thats interesting. I'm gonna check the specs of my IMAX cinema compared to the flagship because I'm sure I never saw the screen change for Batman Vs Superman or the new Star Wars, both of which had some IMAX scenes in them

 

[Paul.]

IMAX is essentially massive film. Traditionally the film stock used to shoot a film is 35mm, like the stuff we used to use in our stills cameras.

imax film is usually around 70mm so captures a colossal amount of detail, modern digital cameras can beat 35mm but still not 70mm.

Although some IMAX cinemas use digital projection, not film.

Sort of. An interesting article on the topic here.

http://www.tested.com/tech/459274-lets-clear-some-imax-misconceptions/