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Thread: Question for Shutter and Aperture

  1. #1
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    Default Question for Shutter and Aperture

    As we all know, the shutter and aperture is decided by the situation of the scene where u want to shoot~
    According to the guide books from pro, I found out that
    They always use the aperture by f2, f4, f5.6, f8, f11
    the shutter speed by second.., 1/2, 1/4, 1/30, 1/60, 1/125, 1/250 etc such fixed number
    where is the 1/160, 1/25, 1/1.6, f4.5, f7.1 ?????

    noob question , but really a question~ha
    is they used to the number when going to choose them?
    or formula?
    wonder as if the 1/125 f4 , if the light becomes just a LITTLE darker or LITTLE brighter
    what they adjust? from 1/125 to 1/100?
    but never seen~~~

    What i mean is for the books by the professional, just wondering, but the really nice photos they did~haha

  2. #2
    Senior Member zac08's Avatar
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    Default Re: Question for Shutter and Aperture

    Pls go READ UP the Photography Notes For Newbies

    You need to understand the aperture, shutter and ISO co-relation first.

    As for the f1.8, f7.1 (these are 1/3 steps in between the proper stops)

    f1.8 - f2 - f2.2 - f2.5 - f2.8 (f2 to f2.8 is one stop)

    same with the shutter speeds....
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  3. #3

    Default Re: Question for Shutter and Aperture

    I believe KCYong is asking why pros normally use full-stops rather than 1/3 or 1/2 stops. Sorry I don't know the answer too.. heheh...
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    Moderator catchlights's Avatar
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    Default Re: Question for Shutter and Aperture

    that is a old habit, don't have one third stops in old SLR cameras.

    besides, most of them don't use P mode.
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    Default Re: Question for Shutter and Aperture

    Quote Originally Posted by kenken17 View Post
    I believe KCYong is asking why pros normally use full-stops rather than 1/3 or 1/2 stops. Sorry I don't know the answer too.. heheh...
    Plausible. But TS phrased it in a very interesting way

    Well, if that really was the question, another thing to add is that the dynamic range of film is much wider than that of digital sensors, so the impact of over/underexposing isn't as significant compared to digital sensors.

  6. #6

    Default Re: Question for Shutter and Aperture

    maybe the Pros did indeed use half or 1/3 stop, but for convenience sake, list the settings as full stops.

    in fact, i tink modern camera settings are even more precise than 1/3 stop, but on the LCD, the photographer only sees up to 1/3 stop difference.

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    Default Re: Question for Shutter and Aperture

    Quote Originally Posted by kenken17 View Post
    I believe KCYong is asking why pros normally use full-stops rather than 1/3 or 1/2 stops. Sorry I don't know the answer too.. heheh...
    Wah, you have high comprehension skills. i couldn't figure out what TS was trying to say.

  8. #8
    Senior Member zac08's Avatar
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    Default Re: Question for Shutter and Aperture

    Probably due to the fact that there wasn't much point to go to 1/3 stops for films and slides. Most didn't even offer this fine settings till much later.

    After-all, in post processing for both film and digital, you're able to pull or push it anyway...
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  9. #9

    Default Re: Question for Shutter and Aperture

    At least we can have a fair guess that the pros are using those fine settings, but for elaboration purpose for most cameras, they use full stops. ok case closed. HOHO
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    Default Re: Question for Shutter and Aperture

    Honestly though, what's the point in knowing what settings these pros use? When you are shooting a scene, you meter for yourself because each scene is going to be different.

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    Default Re: Question for Shutter and Aperture

    Thanks all ur help
    i get some ideas from ur answers really appeciate^^

    i only ASKING WHY
    haha why so many conflict ==haha

    Thanks ^^

  12. #12

    Default Re: Question for Shutter and Aperture

    Quote Originally Posted by KCYong View Post
    Thanks all ur help
    i get some ideas from ur answers really appeciate^^

    i only ASKING WHY
    haha why so many conflict ==haha

    Thanks ^^
    because photography is a journey of self-discovery

    it is more than just following magic settings..

    and you don't seem to be indulging in the self-discovery part, i seriously urge you to read up more and engage in that portion, it is the most fun if you ask me

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    Default Re: Question for Shutter and Aperture

    Quote Originally Posted by night86mare View Post
    because photography is a journey of self-discovery

    it is more than just following magic settings..

    and you don't seem to be indulging in the self-discovery part, i seriously urge you to read up more and engage in that portion, it is the most fun if you ask me
    not so cheem.

    later he cannot understand.
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    Default Re: Question for Shutter and Aperture

    ==
    i'm discovering on my camera , and discovering the guide books, learn and try all the way
    dont know, not sure, then ask and learn
    it is learning process~
    wrong? ==
    one hav one's learning style
    and u also dont know what i do in the self-discovery part

    thanks and sorry ^^

  15. #15
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    Default Re: Question for Shutter and Aperture

    学问 学问 学问
    要“学”会
    就要“问”

    hope u can understand :P

  16. #16

    Default Re: Question for Shutter and Aperture

    Not that this will help the TS (believe his question has been answered anyway), but to clarify some misconceptions about shooting on film in the 'old days'. Negatives (colour & B/W) are indeed tolerant to exposure errors, within limits. Not so slide films -- if anything, they were harder to shoot properly than digital. I regularly bracketed in half-stops. Some did so in third-stops. Some deliberately underexposed 1/3 to 1/2-stop to get punchier colours.
    You couldn't push or pull development to save individual shots (except perhaps sheet film) because you pushed/pulled an entire roll! You had to decide if you wanted to push/pull from the very first shot on that roll, and processing costs shot up.
    As for fine control, with mechanically-linked lenses i.e. those with aperture rings, you could set your aperture IN-BETWEEN detents to get fine control. For e.g. the detents on my CY-mount lenses were in full-stops, but that didn't stop me from setting the aperture in between to 1/2-stops, 1/3-stops or whatever. My old Sekonic meter used to read in 1/10 stops!
    All my SLRs had electronic shutters, so shutter speeds were set in full-stops, but in aperture-priority, all the SLRs I own feature continuously variable shutter speeds. On my Yashica MAT 124 (a mechanical medium format TLR) both shutter speeds and apertures are continuously variable, no detents. How's that for fine control?

  17. #17

    Default Re: Question for Shutter and Aperture

    Quote Originally Posted by KCYong View Post
    学问 学问 学问
    要学会
    就要问

    hope u can understand :P
    totally agreed

  18. #18
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    Default Re: Question for Shutter and Aperture

    Thanks you all^^

  19. #19

    Default Re: Question for Shutter and Aperture

    Quote Originally Posted by KCYong View Post
    学问 学问 学问
    要学会
    就要问

    hope u can understand :P
    yes, i understand

    sorry if you misconstrued what i meant, what i meant is that, if you read harder, these books you are reading actually have the answer

    yes, 要问才会学, but i think , it is fair to say, if your questions are not the usual or more valid ones, then it is only natural for people to think otherwise.

    anyways, to answer your question

    every lighting situation needs a certain amount of exposure, exposure for your camera is affected by:

    1) shutter speed
    2) aperture
    3) iso

    these choices all affect other things, as the books would tell you, shutter speed would affect the amount of motion in your picture (think about it, and you'll see why).. aperture will affect depth of field (or how much of the picture is in focus) and iso will affect the amount of grain in the picture.

  20. #20

    Default Re: Question for Shutter and Aperture

    Quote Originally Posted by KCYong View Post
    ==
    i'm discovering on my camera , and discovering the guide books, learn and try all the way
    dont know, not sure, then ask and learn
    it is learning process~
    wrong? ==
    one hav one's learning style
    and u also dont know what i do in the self-discovery part

    thanks and sorry ^^
    the question u initially posted was very specific. but remember, the single speed, fixed aperture, plastic lens Holga creates stunnin pic in competent hands.

    there are many different "thoughts" on photography.

    even the Gods of photography had something to say about the other. i recall reading somewhere that "Bresson actually grumbled that while the world was fallin apart, all Adam photographed were rocks!"

    technical aspect are important, but more important (i feel), is to ve a free and open mind. eg, when i see 陈瑞献 's artwork, he is jus like a child, totally free, w/o restriction, back to the raw beauty of things (of course, his foundation is rock solid).

    since shooting digital is literally FOC, jus shoot as u read and learn, and discover along the way.

    happy shooting.

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