• Members 2303 posts
    April 19, 2023, 10:26 p.m.

    I suppose we can all agree on selective double standards.

  • Members 1737 posts
    April 19, 2023, 10:28 p.m.

    "Shutter" is already a hangover from the days when the exposure had to be ended manually by inserting something into the light path.

  • Members 2303 posts
    April 19, 2023, 10:34 p.m.

    I have one of the old glass plate cameras, i was given it last week and its a museum piece worth $1500 ama zing peice of kit where you load 6 plates into it and they fold down after the exposure.

  • Members 976 posts
    April 19, 2023, 10:47 p.m.

    This has nothing to do with wrong things, especially when the correct things are easier and more productive, and, most of all, help creativity.

  • Members 976 posts
    April 19, 2023, 11:02 p.m.

    Could you please demonstrate how increasing ISO affects noise?

  • Members 621 posts
    April 19, 2023, 11:07 p.m.

    I could show pics at iso 100 without noise and pics at 6400 with noise. I’m not sure I understand what you mean by “demonstrate.” Unless I missed context earlier…which with a thread this long is quite possible…LOL

  • Members 1737 posts
    April 19, 2023, 11:15 p.m.

    With the same exposure?

  • Members 132 posts
    April 19, 2023, 11:17 p.m.

    The question is, where'd that noise come from? Was it due to a lack of exposure, or a the high ISO setting?

  • Members 976 posts
    April 19, 2023, 11:18 p.m.

    Actually, I think it would be useful, and gives a possibility to discuss the reason for the difference in noise.

  • Members 2303 posts
    April 19, 2023, 11:34 p.m.

    Your a push over 🤣
    noise.jpg

    noise.jpg

    JPG, 875.0 KB, uploaded by DonaldB on April 19, 2023.

  • Members 457 posts
    April 20, 2023, 12:16 a.m.

    Did you change the scene light? Use an ND filter? Then it is not the same exposure.
    In all my tests, the same exposure showed equal or less noise with higher ISOs (same scene lighting).

  • Members 689 posts
    April 20, 2023, 12:41 a.m.

    Here is an image taken at ISO 51200. See the difference in the noise between white horse and background? Same ISO. Why?

    Medieval Times-210716-20.jpg

    Medieval Times-210716-20.jpg

    JPG, 2.3 MB, uploaded by sagittarius on April 20, 2023.

  • Members 53 posts
    April 20, 2023, 1:03 a.m.

    The answer is yes.

    The high iso revealed the noise that’s there due in part to the insufficient exposure. But holding the iso lower and raising the ‘exposure’ in post would reveal the same (or often worse) noise.

  • Members 2303 posts
    April 20, 2023, 2:33 a.m.

    I copied and pasted this information from an expert photographer ,so it must be right .🙄🤨

    • exposure - amount of light that struck the sensor per unit area while the shutter was open
      optimal exposure - the maximum exposure within dof and motion blur requirements without clipping important highlights.
      under exposed - more exposure* could have been added with the DOF and blur constraints still being met without clipping important highlights

    so are you telling me he is wrong ?

  • Members 3910 posts
    April 20, 2023, 2:51 a.m.

    Those are the definitions I choose to use. Other people might choose to use different definitions.

    Some people define exposure as meaning how light or dark an image looks. But then their heads begin to spin when I tell them that I can change the image lightness in camera while keeping the exposure* constant 🙂

    * exposure - amount of light that struck the sensor per unit area while the shutter was open
    ** optimal exposure - the maximum exposure* within dof and motion blur requirements without clipping important highlights.
    *** under exposed - more exposure* could have been added with the DOF and blur constraints still being met without clipping important highlights.

  • Members 3910 posts
    April 20, 2023, 2:54 a.m.

    You can find the answer at Why Are My Photos Noisy?

  • Members 435 posts
    April 20, 2023, 3:20 a.m.
  • Members 457 posts
    April 20, 2023, 3:36 a.m.

    I assume you changed the scene light and therefore changed the exposure (the amount of light reaching the sensor).