• Members 369 posts
    June 3, 2023, 9:07 p.m.

    They're both the same exposure. However, one may be acceptable while the other is not.

    What determines acceptability is the compatibility of the settings used to produce an exposure with the creative goals of the photographer. An exposure can be unacceptable if the settings used don't achieve the photographer's creative goals.

    One photographer might prefer the greater depth of field at f/8. Another may prefer the rendering of movement at 1/200-second exposure time.

    If a photographer can achieve their creative goals at either collection of settings, then both exposures are the same and equally acceptable.

  • Removed user
    June 4, 2023, 4:55 a.m.

    Sorry, been away from this fascinating thread thread this evening.

    So, by now, does everybody here know what histogram we're exposing-to-the-right of? Finding it hard to believe that it's for example the tiny live luminosity one that shows up on my Panasonic LCD while I wave it around the scene ...

  • Members 2365 posts
    June 4, 2023, 4:57 a.m.

    get off your high horse. i owned a charter Yacht with reef wide research + education permits. lived, swam and sailed the reef for 20 years and was a member of reef
    research publication. what did you do play rubber duckies in the bath tub.

  • Members 2365 posts
    June 4, 2023, 4:58 a.m.

    go watch the local news. you live in australia dont you ?

  • Members 758 posts
    June 4, 2023, 5:28 a.m.

    He he he. I love the way this thread brings out the passive aggressive's, furiously mashing the like button on any post that sympathises with their own point of view. Hilarious to watch. Good work Donald. Seriously :)

  • Members 2365 posts
    June 4, 2023, 5:45 a.m.

    can you beleive these guys , they all think they are gods gift to man kind.

  • Members 435 posts
    June 4, 2023, 6:48 a.m.

    Don't do it!

    The last time I tried proper exposure, I got arrested on the beach. So pick your beach carefully. ⛱️

  • Members 758 posts
    June 4, 2023, 6:53 a.m.

    Where's the laughing like a loon button at the bottom of the post? 😂😂😂

  • Removed user
    June 4, 2023, 7:20 a.m.

    I'm glad you mentioned that. With reference to exposure, here's my proof:

    exposure.jpg

    ISO i2232: 2006 ... "photosite integration time" beats "while the shutter is open" any day, ho ho.

    exposure.jpg

    JPG, 259.4 KB, uploaded by xpatUSA on June 4, 2023.

  • Members 4254 posts
    June 4, 2023, 7:47 a.m.

    It has been shown in other threads that the definition I use is the same as on Wikipedia in that:

    Amount of light that struck the sensor per unit area while the shutter was open = intensity of light × time.

  • Members 2365 posts
    June 4, 2023, 7:48 a.m.

    🤣🤣🤣

  • June 4, 2023, 9:33 a.m.

    I quite often get accused of pedantry, but the objection to your formulation is 'while the shutter was open' doesn't strictly apply to electronic shutters. But then, neither does the word 'shutter'. That's XPat's objection. Porky's objection is because he hasn't enough basic understanding to realise that your definition is equivalent to E = I × t. The advantage of your formulation is that whilst strictly not completely correct since mechanical shutters ceased to be the only option, the variance does not cause any conceptual issues, and it's more accessible to lay people than 'integration time'.

  • Members 4254 posts
    June 4, 2023, 9:44 a.m.

    That is exactly my point. I posted either in this or another thread that I have not yet come across a beginner who has not been able to understand that the definition applies to all cameras once they understand the similarities in concept between mechanical and electronic shutters.

    The definition I use is a layman's version of H = E x t.

    exposure - amount of light that struck the sensor per unit area while the shutter was open

  • Members 976 posts
    June 4, 2023, 12:58 p.m.

    I think the camera controls are still named shutter release and shutter speed. To me, this makes "while the shutter was open" acceptable.

  • Members 976 posts
    June 4, 2023, 1:23 p.m.

    A guy who uses a digital camera to earn his living goes against science and scientists, biting the hand that feeds him.

  • Members 1738 posts
    June 4, 2023, 1:50 p.m.

    Agree. Objecting to this usage is akin to objecting to using the phrase "dialing the number on your phone" or "hanging up after the conversation is over". Or objecting to use of the word "throttle" in a modern, fuel-injected vehicle.

  • Members 138 posts
    June 4, 2023, 2:56 p.m.

    The light doesn't care whether it's being gated by a shutter or integrated by a circuit. Let's get back to that...

  • Removed user
    June 4, 2023, 6:09 p.m.

    May I ask who, just out of interest ?