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Guess the EXIF

bobn2
June 22, 2023
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    bobn2
    Team 2240 posts
    June 22, 2023, 8:21 p.m. June 22, 2023, 8:21 p.m.
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    GTE.JPG
    The game is, can you guess the EXIF (which has been stripped) from the photo.
    Starting clue - taken on a Z6 - SOOC apart from stripping the EXIF.
    Looking for focal length, f-number, exposure time, ISO.

    GTE.JPG

    JPG, 4.8 MB, uploaded by bobn2 on June 22, 2023.

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    stevet1
    Members 767 posts
    June 22, 2023, 11:14 p.m. June 22, 2023, 11:14 p.m.
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    Bob,

    I think this is a terrific topic, and I hope you will make it a staple thread.

    Steve Thomas

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    DanHasLeftForum
    Members 4254 posts
    June 22, 2023, 11:25 p.m. June 22, 2023, 11:25 p.m.
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    My guess fwiw since there are way too many unknowns and variables 😎

    f/5 - f/11

    1/800s - 1/100s

    ISO 100 - ISO 200

    50mm eq - 600mm eq

    But then if the photographer accidentally had say ISO 400 or higher set, then shutter speeds would be faster.

    It will be interesting to see how this thread develops 🙂

    dprevived.com/media/attachments/27/91/aAr96IpuIEmK63CKAYCYCaqpLs8oOLAs1nVM8qk1s7yLXb5ACDXhT2ugqD3wHvFI/eatingpopcorn2.gif

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    TomAxford
    Members 562 posts
    June 23, 2023, 6:38 a.m. June 23, 2023, 6:38 a.m.
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    My guess: 50mm f/8 1/500s ISO 100

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    bobn2
    Team 2240 posts
    June 23, 2023, 7:30 a.m. June 23, 2023, 7:30 a.m.
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    @DannoLeftForums has written:

    My guess fwiw since there are way too many unknowns and variables 😎

    That's why it's 'guess the ISO'

    @DannoLeftForums has written:

    f/5 - f/11

    1/800s - 1/100s

    ISO 100 - ISO 200

    50mm eq - 600mm eq

    Somewhere in that range!

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    bobn2
    Team 2240 posts
    June 23, 2023, 7:30 a.m. June 23, 2023, 7:30 a.m.
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    @stevet1 has written:

    Bob,

    I think this is a terrific topic, and I hope you will make it a staple thread.

    Steve Thomas

    Let's see how it works, and if people enjoy. I might need to put in some more clues.

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    bobn2
    Team 2240 posts
    June 23, 2023, 7:33 a.m. June 23, 2023, 7:33 a.m.
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    @TomAxford has written:

    My guess: 50mm f/8 1/500s ISO 100

    It's a good guess.

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    DanHasLeftForum
    Members 4254 posts
    June 23, 2023, 7:33 a.m. June 23, 2023, 7:33 a.m.
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    @bobn2 has written:
    @DannoLeftForums has written:

    My guess fwiw since there are way too many unknowns and variables 😎

    That's why it's 'guess the ISO'

    Yes, but the iso used for that shot could potentially have been anything up to 800 or maybe even 1600.

    That is why I put my guess for each parameter as a range.

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    DonaldB
    Members 2365 posts
    June 23, 2023, 8:05 a.m. June 23, 2023, 8:05 a.m.
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    @DannoLeftForums has written:
    @bobn2 has written:
    @DannoLeftForums has written:

    My guess fwiw since there are way too many unknowns and variables 😎

    That's why it's 'guess the ISO'

    Yes, but the iso used for that shot could potentially have been anything up to 800 or maybe even 1600.

    That is why I put my guess for each parameter as a range.

    1/5000 sec f8 raw lifted 5 stops in post 😉

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    DanHasLeftForum
    Members 4254 posts
    June 23, 2023, 8:20 a.m. June 23, 2023, 8:20 a.m.
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    It's sooc, not processed in post from raw.

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    bobn2
    Team 2240 posts
    June 23, 2023, 9:16 a.m. June 23, 2023, 9:16 a.m.
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    @DannoLeftForums has written:
    @bobn2 has written:
    @DannoLeftForums has written:

    My guess fwiw since there are way too many unknowns and variables 😎

    That's why it's 'guess the ISO'

    Yes, but the iso used for that shot could potentially have been anything up to 800 or maybe even 1600.

    That is why I put my guess for each parameter as a range.

    I think the way I would have gone about it, if doing rather than setting, would be to try to guess f-number from DOF, then exposure from noise - and hence shutter speed (something to do with sunny-16) then ISO.
    If I do another one, maybe I'll find a photo with a clue to shutter speed.

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    bobn2
    Team 2240 posts
    June 23, 2023, 11:21 a.m. June 23, 2023, 11:21 a.m.
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    @DannoLeftForums has written:

    It will be interesting to see how this thread develops 🙂

    There was some prescience there. Of course, the triangle trolls will have to chip in with their usual disruption.

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    Deleted Removed user
    June 23, 2023, 2:51 p.m. June 23, 2023, 2:51 p.m.
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    @bobn2 has written:
    @DannoLeftForums has written:

    It will be interesting to see how this thread develops 🙂

    There was some prescience there. Of course, the triangle trolls will have to chip in with their usual disruption.

    did you HAVE to leave Danno's stupid irritating nothing-to-do-with-photography GIF in the quote?!!

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    bobn2
    Team 2240 posts
    June 23, 2023, 2:55 p.m. June 23, 2023, 2:55 p.m.
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    @xpatUSA has written:

    did you HAVE to leave Danno's stupid irritating nothing-to-do-with-photography GIF in the quote?!!

    No.

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    stevet1
    Members 767 posts
    June 23, 2023, 2:59 p.m. June 23, 2023, 2:59 p.m.
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    @stevet1 has written:

    Bob,

    I think this is a terrific topic, and I hope you will make it a staple thread.

    Steve Thomas

    Sorry Bob.
    This lasted all of one day.
    I thought it would have made a great learning tool..

    Steve Thomas

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    bobn2
    Team 2240 posts
    June 23, 2023, 3:08 p.m. June 23, 2023, 3:08 p.m.
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    @stevet1 has written:

    Sorry Bob.
    This lasted all of one day.
    I thought it would have made a great learning tool..

    Steve Thomas

    So would I, and some fun. Why not have a go? Maybe others will try.

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    JACS
    Members 878 posts
    June 23, 2023, 5:52 p.m. June 23, 2023, 5:52 p.m.
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    [deleted]

    IliahBorg likes this.

    favorite 1

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    bobn2
    Team 2240 posts
    June 23, 2023, 6:40 p.m. June 23, 2023, 6:40 p.m.
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    @JACS has written:
    @bobn2 has written:
    @TomAxford has written:

    My guess: 50mm f/8 1/500s ISO 100

    It's a good guess.

    I think it is longer than 50mm, probably not by much. There is some softness in the lower left corner which with normal to wide FL could have been avoided.

    Well and correctly reasoned.

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