what does f mean!?

Discussion in 'Photography Beginners' Forum' started by nagoshua, Dec 26, 2007.

  1. nagoshua

    nagoshua TPF Noob!

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    Ive been taking pictures for a while and my knowledge of camera things is gettings quite large but my girlfriend asked me tonight what does f mean (as in aperture) and i didnt have a clue and i dont think ive ever seen it explained anywhere... so any answers people!
     
  2. elsaspet

    elsaspet TPF Noob!

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  3. Sideburns

    Sideburns TPF Noob!

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    the f in f/stop is focal length.

    Aperture is basically a fraction of focal length/aperture opening
     
  4. Josh66

    Josh66 Been spending a lot of time on here!

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    If you were using a 50mm lens and had your aperture set to f/2.8, the actual opening (the aperture) in the lens would be about 17.85mm. f (the focal length...50mm in this case) divided by 2.8 = 17.85mm. It's a ratio to show how big the aperture is compared to the focal length.
     
  5. Battou

    Battou No longer a newbie, moving up!

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    Lol, guys the OP was asking what the letter itself ment.


    The F in F/stop is an abrieviation for Focal ratio
     
  6. Alex_B

    Alex_B No longer a newbie, moving up!

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    If I translate from German, it is always focal length, not ratio.


    In any case, sometimes f means something different, as in WTF.:lmao: sorry ...
     
  7. Battou

    Battou No longer a newbie, moving up!

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    Ok I see what I did.
     
  8. Alex_B

    Alex_B No longer a newbie, moving up!

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    I am not saying it is wrong, it is just not a common term to me as a non-native speaker :)


    I thought focal ratio was the term for f/X with X being the f-stop.
    whereas f alone is only the focal length.
     
  9. Battou

    Battou No longer a newbie, moving up!

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    Yes.

    It's been a wile since I attended class you are right, I ended up doing some research and relearning the whole ordeal.
     
  10. Alex_B

    Alex_B No longer a newbie, moving up!

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    OK, prolem solved :)

    Waiter, next problem please! ;)
     
  11. noobyy

    noobyy TPF Noob!

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    haha amused =P bt still Battou , you have the knowlage thx for your advice and all..
     
  12. Sideburns

    Sideburns TPF Noob!

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    lol so what you both were saying was "yes sideburns you were right".

    ahaha.

    Thanks guys!

    Glad you relearned it battou...always nice to have an understanding...even if you already had it before.
     

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