• Members 457 posts
    May 17, 2023, 7:36 p.m.

    Larger sensors have more DR only if you can give them more light.

  • Members 1737 posts
    May 17, 2023, 7:45 p.m.

    They have more DR if you give them the same number of photons per unit area, but there are sometimes reasons why you can't -- or don't want to -- do that.

    Practically, taking full advantage of larger sensors means longer exposures at equivalent apertures. Twas ever thus, even in the film days.

  • May 17, 2023, 7:53 p.m.

    That makes sense to me

    Alan

  • Members 2287 posts
    May 17, 2023, 8:09 p.m.

    Red plastic isn't a problem, unless it's fluorescent. Red flowers are the problem.
    [/quote]

    i think you buggered up your copy and pastes and qutoes. gets me all the time as well.

  • Members 457 posts
    May 17, 2023, 8:15 p.m.

    Yes. On the other hand …
    When shooting handheld, in low light, the slowest possible shutter speed is fixed, regardless of sensor size. This means that with equivalent apertures and at lower light (handheld), contrary to conventional wisdom, larger sensors do not have an advantage. Correct?

  • Members 1737 posts
    May 17, 2023, 8:23 p.m.

    Correct, except, possibly the "contrary to conventional wisdom" part. All the photographers I know well don't buy into what you're calling conventional wisdom.

  • Members 1737 posts
    May 17, 2023, 8:25 p.m.
  • Members 2287 posts
    May 17, 2023, 8:29 p.m.

    Bigger pixels win ,nothing more to say on the subject.

  • May 17, 2023, 8:30 p.m.

    Sorry folks, had a Phil Askey moment - got fed up with the negativity, and put it all here. People can still follow that line of discussion if they want, but it stops it polluting Jim's thread.

  • Members 1737 posts
    May 17, 2023, 8:31 p.m.

    They do not. Today, full well capacities are running around 3000 electrons per square micrometer regardless of pixel size.

  • May 17, 2023, 8:32 p.m.

    Mainly comes from designing to 100 ISO and getting a fairly consistent QE.

  • Members 2287 posts
    May 17, 2023, 8:34 p.m.

    I shot with m43 for 5 years professionally and now sony FF for 3 years. i could post many (1000 of in studio portraits , but not to offend M43 users
    i will keep the outcome to my self.
    BTW i won a debate on this same subject years ago with the sony a7s3 and s2 when no one picked up the s3 was a 48meg sensor 😁

  • Members 1737 posts
    May 17, 2023, 8:36 p.m.

    Sounds like you are not comparing pixel sizes. You are comparing sensor sizes.

  • Members 2287 posts
    May 17, 2023, 8:36 p.m.

    BTW i won a debate on this same subject years ago with the sony a7s3 and s2 when no one picked up the s3 was a 48meg sensor 😁

  • Members 457 posts
    May 17, 2023, 8:38 p.m.

    I should have used the term “myth” instead of the sarcastic “conventional wisdom.”
    It s very common to read the claim that larger sensors are better for low light. That is true only in certain conditions (possibility of longer exposures or non-equivalent apertures).

  • Members 457 posts
    May 17, 2023, 8:41 p.m.

    When using the same technology and comparing at the same output size, same sensor size, bigger pixels do not have an advantage. You can try it out on DPR studio scene.

  • Members 83 posts
    May 17, 2023, 8:49 p.m.

    Do I understand that you are writing about full well per sensor area and not full well per photo site?

    Photo sites per sensor area would make no difference if only interested in sensor area?

    But, crop sensor with more photo sites per area than full size sensor at the same pixel resolution would have more visible noise than full size sensor?

    If only interested in sensor area, then larger sensor wins. I interested in noise per pixel, pixel size wins.

  • Members 2287 posts
    May 17, 2023, 8:51 p.m.

    Look up sony a7s3 48meg sensor binned to 12 and the sony a7s2 straight 12 meg large pixel on DXOmark. the s2 blows the s3 away.