Exposure time traditions

Article: Lessons in Technology and Innovation from the iPad 3 Graphics and Display
By: Nathan Monson (nmo.delete@this.spam.com), January 5, 2013 12:21 pm
Room: Moderated Discussions
y (y.delete@this.example.com) on January 4, 2013 7:47 pm wrote:
> Does 1/64 shutter speed at 48fps mean they are discarding
> (1 - 48/64) = 25% of the light incoming to the camera?

Yes.

> If so, it seems this would be the culprit, as it would totally destroy any moving scene, due to parts
> of the motion literally being thrown away instead of properly contributing to the motion blur.

It's the other way around. Traditional 24Hz cinema uses a 172 or 180 degree shutter, or 1/48 exposure time, throwing out 50% of the light. The Hobbit is smoother.

> Isn't it possible to manufacture a camera that doesn't do this?

They already do. There are plenty of options if you want to go up to (almost) 360 degrees.

The shutter angle changes the feel of the movie. Saving Private Ryan famously used a 45 degree angle for its trademark "wartime" feel.

Near 360 degrees is considered by many to look "too smooth", "blurred", or "smeary", and better suited for unreal shots such as dream sequences or special effects.

It's all a matter of taste, of course. But cinematographers continue to use 172 or 180 degrees when they want a "normal movie" look. This is how we've been watching movies for decades. Anything else will make your movie feel strange.

Nathan
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TopicPosted ByDate
Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayDavid Kanter2013/01/01 04:14 AM
  Games at 2048 x 1536? Can you tell?Mark Roulo2013/01/01 02:22 PM
    Games at 2048 x 1536? Can you tell?David Kanter2013/01/01 07:58 PM
      Games at 2048 x 1536? Can you tell?Anon2013/01/03 12:04 AM
        Games at 2048 x 1536? Can you tell?Andy2013/01/03 04:05 AM
          Games at 2048 x 1536? Can you tell?Anon2013/01/06 02:10 AM
            Games at 2048 x 1536? Can you tell?EBFE2013/01/06 11:07 PM
    Games at 2048 x 1536? Can you tell?Seni2013/01/01 09:17 PM
    Games at 2048 x 1536? Can you tell?anon2013/01/02 04:00 AM
      Games at 2048 x 1536? Can you tell?EduardoS2013/01/02 09:07 AM
        Games at 2048 x 1536? Can you tell?anon2013/01/03 12:21 AM
          Games at 2048 x 1536? Can you tell?EduardoS2013/01/03 01:03 AM
      Games at 2048 x 1536? Can you tell?Ricardo B2013/01/02 11:01 AM
        Games at 2048 x 1536? Can you tell?Michael S2013/01/03 01:35 AM
          Games at 2048 x 1536? Can you tell?Andy2013/01/03 04:10 AM
            Games at 2048 x 1536? Can you tell?Michael S2013/01/03 06:33 AM
              Games at 2048 x 1536? Can you tell?rwessel2013/01/03 11:56 AM
                Games at 2048 x 1536? Can you tell?rwessel2013/01/03 11:56 AM
                  Oh, for crying out load, would you fix this stupid thing to make it a tiny bit harder to double post (NT)rwessel2013/01/03 12:01 PM
                    /load/loud/ grrr... (NT)rwessel2013/01/03 12:02 PM
                    Oh, for crying out load, would you fix this stupid thing to make it a tiny bit harder to double postDavid Kanter2013/01/10 10:07 AM
                      Oh, for crying out load, would you fix this stupid thing to make it a tiny bit harder to double postrwessel2013/01/10 09:33 PM
                        Oh, for crying out load, would you fix this stupid thing to make it a tiny bit harder to double postrwessel2013/01/10 09:35 PM
                          Oh, for crying out load, would you fix this stupid thing to make it a tiny bit harder to double postrwessel2013/01/10 09:40 PM
                          Me, too! :-)Mark Roulo2013/01/11 08:57 AM
              85 Hz CRT monitorsDoug S2013/01/04 02:12 PM
                85 Hz CRT monitorsAnon2013/01/06 02:16 AM
                  85 Hz CRT monitorsDoug S2013/01/06 12:40 PM
                    The benefits of (non-perceived) flickerMax2013/01/07 01:43 PM
                      The benefits of (non-perceived) flickerAnon2013/01/07 02:59 PM
                        The benefits of (non-perceived) flickerPaul2013/01/07 05:40 PM
                      The benefits of (non-perceived) flickerUngo2013/01/07 03:57 PM
                        The benefits of (non-perceived) flickerDoug S2013/01/07 04:40 PM
                        The benefits of (non-perceived) flickerMax2013/01/07 06:16 PM
                          The benefits of (non-perceived) flickerAnon2013/01/09 09:50 PM
                            The benefits of (non-perceived) flickerMax2013/01/10 06:18 AM
                              The benefits of (non-perceived) flickerSM2013/01/10 12:37 PM
                        The benefits of (non-perceived) flickerdmsc2013/01/07 07:36 PM
                          The benefits of (non-perceived) flickerEBFE2013/01/07 11:08 PM
                          The benefits of (non-perceived) flickerAnon2013/01/09 10:07 PM
                            The benefits of (non-perceived) flickerdmsc2013/01/10 04:41 PM
                              The benefits of (non-perceived) flickerUngo2013/01/11 05:20 PM
                    perception of flickerCarlie Coats2013/01/08 04:39 PM
                      perception of flickerDoug S2013/01/08 10:25 PM
                        perception of flickerAnon2013/01/09 10:09 PM
        Games at 2048 x 1536? Can you tell?anongamer2013/01/03 04:31 AM
      Games at 2048 x 1536? Can you tell?Richard Cownie2013/01/02 02:56 PM
        Tablet vs. console GPUsDoug S2013/01/02 04:09 PM
          Tablet vs. console GPUsRicardo B2013/01/02 04:50 PM
      Games at 2048 x 1536? Can you tell?Anon2013/01/03 12:13 AM
        Games at 2048 x 1536? Can you tell?anon2013/01/03 12:54 AM
          The Hobbit is at 48 fpsRichard Cownie2013/01/03 07:02 AM
            Thanks for the interesting data point! (NT)Paul A. Clayton2013/01/03 09:26 AM
            The Hobbit is at 48 fpsRicardo B2013/01/03 11:17 AM
              The Hobbit is at 48 fpsRichard Cownie2013/01/03 11:55 AM
                The Hobbit is at 48 fpsRichard Cownie2013/01/03 12:44 PM
                  The Hobbit is at 48 fpsRicardo B2013/01/03 01:42 PM
                    The Hobbit is at 48 fpsRichard Cownie2013/01/03 02:31 PM
                      The Hobbit is at 48 fpsy2013/01/04 07:47 PM
                        Exposure time traditionsNathan Monson2013/01/05 12:21 PM
                          Exposure time traditionsy2013/01/05 09:59 PM
                            Exposure time traditionsanon2013/01/06 01:46 AM
                              Exposure time traditionsJukka Larja2013/01/07 08:52 AM
                            Exposure time traditionsdmsc2013/01/06 09:34 AM
                              Exposure time traditionsy2013/01/06 09:11 PM
                                Exposure time traditionsdmsc2013/01/07 07:42 PM
                                  Exposure time traditionsRichard Cownie2013/01/09 08:23 AM
                        The Hobbit is at 48 fpsMichael S2013/01/05 12:30 PM
                          The Hobbit is at 48 fpsRichard Cownie2013/01/05 03:45 PM
                            The Hobbit is at 48 fpsAnon2013/01/06 02:03 AM
                              The Hobbit is at 48 fpsRichard Cownie2013/01/06 06:43 AM
                                The Hobbit is at 48 fpsJukka Larja2013/01/07 09:18 AM
                                  The Hobbit is at 48 fpsRichard Cownie2013/01/07 05:21 PM
                                    The Hobbit is at 48 fpsJukka Larja2013/01/08 09:29 AM
                                      The Master 65mm/70mmRichard Cownie2013/01/08 12:52 PM
                                        The Master 65mm/70mmJukka Larja2013/01/11 02:07 PM
                                          The Master 65mm/70mmRichard Cownie2013/01/11 07:05 PM
                                            The Master 65mm/70mmJukka Larja2013/01/11 11:35 PM
                                              The Master 65mm/70mmDoug S2013/01/12 02:16 PM
                                                Pixar and 3DRichard Cownie2013/01/13 07:07 AM
                                            The Master 65mm/70mmDavid Hess2013/01/12 02:06 PM
                                            The Master 65mm/70mmMegol2013/01/16 01:02 PM
                                        The Master 65mm/70mmRakesh Malik2013/01/23 12:28 PM
                                    The Hobbit is at 48 fpsAnon2013/01/09 10:18 PM
                                      The Hobbit is at 48 fpsRichard Cownie2013/01/10 01:07 PM
                                        The Hobbit is at 48 fpsAnon2013/01/10 03:50 PM
                                          The Hobbit is at 48 fpsRichard Cownie2013/01/10 06:05 PM
                                            The Hobbit is at 48 fpsAnon2013/01/13 12:48 AM
                                              I don't care about workflowRichard Cownie2013/01/13 06:55 AM
                                                I don't care about workflowAnon2013/01/13 04:15 PM
                                                  I don't care about workflowRichard Cownie2013/01/13 08:02 PM
                                            The Hobbit is at 48 fpsRakesh Malik2013/01/23 01:38 PM
                              The Hobbit is at 48 fpsRakesh Malik2013/01/23 12:15 PM
                  The Hobbit is at 48 fpsJukka Larja2013/01/05 07:00 AM
                    Realism and fiction?Paul A. Clayton2013/01/05 09:42 AM
                      Realism and fiction?Jukka Larja2013/01/06 02:32 AM
                        Or the second factor?Paul A. Clayton2013/01/06 04:35 AM
                          Or the second factor?Jukka Larja2013/01/07 09:07 AM
                        further reading (was: Realism and fiction?)hobold2013/01/06 04:47 PM
                          Thanks. I'll probably check that out soon. (NT)Jukka Larja2013/01/07 09:13 AM
            The Hobbit is at 48 fpsrwessel2013/01/03 09:57 PM
            VR and latencyCarlie Coats2013/01/04 05:30 PM
              VR and latencyRicardo B2013/01/04 07:49 PM
                VR and latencyJoe2013/01/05 02:01 AM
            The Hobbit is at 48 fpsBernd Schmidt2013/01/08 03:42 AM
        Games at 2048 x 1536? Can you tell?anongamer2013/01/03 05:01 AM
        Games at 2048 x 1536? Can you tell?Ricardo B2013/01/03 08:06 AM
    Games at 2048 x 1536? Can you tell?Marco Salvi2013/01/02 10:31 AM
    Games at 2048 x 1536? Can you tell?Ungo2013/01/02 04:28 PM
    Games at 2048 x 1536? Can you tell?Jukka Larja2013/01/05 07:13 AM
  Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayRichard Cownie2013/01/02 10:29 AM
  iPad GPU Clock Speedsltcommander.data2013/01/05 12:32 PM
    iPad GPU Clock SpeedsBrett2013/01/06 11:48 PM
      iPad GPU Clock SpeedsDoug S2013/01/07 10:17 AM
      iPad GPU Clock SpeedsDavid Kanter2013/01/09 01:48 PM
    iPad GPU Clock SpeedsUngo2013/01/07 04:26 PM
      iPad GPU Clock SpeedsDavid Kanter2013/01/09 01:42 PM
  Lessons in Technology and Innovation from the iPad 3 Graphics and Displaympx2013/01/06 05:35 AM
    Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayMegol2013/01/07 04:45 AM
      Lessons in Technology and Innovation from the iPad 3 Graphics and Displaympx2013/01/07 12:56 PM
        Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayDoug S2013/01/07 04:53 PM
        Lessons in Technology and Innovation from the iPad 3 Graphics and Displayanon2013/01/07 06:26 PM
      Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayMaynard Handley2013/02/13 12:19 PM
  Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayVincent Diepeveen2013/01/06 03:29 PM
    Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayDoug S2013/01/07 10:53 AM
      Lessons in Technology and Innovation from the iPad 3 Graphics and Displaympx2013/01/07 12:48 PM
      Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayVincent Diepeveen2013/01/08 09:53 AM
        Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayDoug S2013/01/08 01:29 PM
          Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayLlew2013/01/26 12:06 PM
            Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayDavid Kanter2013/01/26 01:43 PM
              Lessons in Technology and Innovation from the iPad 3 Graphics and DisplayLlew2013/01/26 02:09 PM
            Wii U has three cores clocked at about 1.2 ghz or so. (NT)I.S.T.2013/01/29 07:37 PM
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