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ISO, Shutter Speed and Aperture Explained | Exposure Basics for Beginners

In this video, David Flores explores the “trinity” of photography fundamentals: ISO, aperture, and shutter speed. Learning to not only expose properly, but creatively using all three settings, is one of the most important aspects of photography.

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This Post Has 26 Comments

  1. Purnima Lakhiani

    Hi.. very nicely done.. do you have a course that I could join?? I am using a phone .. any videos on that..?

  2. aladinsarsipeus

    My thoughts might be blasphemous to some film photographers
    But after watching this video
    for just over 1 minute I realize that I need to use a digital camera to teach myself about
    aperture, shutter speed and iso.
    I want to learn how to manipulate these settings on my slr’s so I can become a more involved user.

    As of now I just use auto mode
    on my slr’s because all I know how to do is set the asa film type(speed)?
    Great video I learned more in 3 1/2 minutes than I have in all other related videos combined.
    Every other video overexplains
    and tries use exemplary comparisons instead of just simply explaining what shutter speed,iso, and aperture are and how to use them. Thank you.

  3. mike g

    best video on this subject forsure! thanks

  4. s s


  5. Audrey Fearon

    This was so helpful. Everything was simple and well explained

  6. Krista Heier

    Please help clarify something. At 1:49 you say, "The larger the f-stop, the more shallow the depth of field. The smaller the aperture, the more overall focus in the image.” I completely understand the second sentence and, by default, the converse is also understandable – as in the larger the aperture, the more shallow the depth of field. But, instead of saying “larger the aperture” for the first sentence you said "the larger the f-stop”.

    So my question: Is saying “larger f-stop” quite a different thing (opposite, in fact) to saying “larger f-stop VALUE”? Is it understood that when you say “larger f-stop” you mean “smaller f-stop VALUE”? Or put another way, is the term “f-stop” interchangeable/synonymous with “aperture” and, therefore, to make either of them smaller (or larger) you know that you need to make the f-stop VALUE larger (or smaller)?

    Or…is the f-stop actually a FRACTION and therefore, when you say “larger f-stop”, you do actually get that by having a smaller denominator in such a fraction? And therefore saying “larger f-stop” interchangeably with “larger aperture” is both accurate and is achieved by using a smaller denominator? Thx

  7. Mr. Y

    straightforward.. Thank You!

  8. Angelica Juan

    Long live sir! You made me feel confident now. Thanl u so much

  9. Ellis Visuals

    i’ve been trying to understand this FOREVER, thank you God. i will finally step into a better bag

  10. Selina Belina

    Thank you! Thank you! for making this understandable!!! All the other videos i checked out are so complicated.

  11. violadude

    You, sir, are a great teacher! Thank you so much for this no nonsense, simple and to the point explanation. Also , you didn’t ask us to « like and subscribe » but I did. Other youtube posters take this as an example. I don’t « like and subscribe » to your shitty videos because they’re shitty. Make better content, get followers and likes. This guy gets it!

  12. Raffy Abo-abo

    Hi Sir. Just wanna ask what kind of camera lense did you used in capturing photos of the model? Hoping for your response. Thanks

  13. All about Adrija

    This is so helpful… And u explained it tooo easily.. Loved watching

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