Let there be light! Pt. II - You ask, we answer

Discussion in 'Photography Beginners' Forum' started by Village Idiot, Feb 19, 2009.

  1. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    I know certain people had fun with this and others got questions answered and learned a lot, so let's try again.

    Got a question about lighting? Anything ever nagged you about it? Don't like it because it seems to hard?

    Ask a question and you'll get an answer. Now's your chance to get some info on something you've always wanted to know about.
     
  2. Jaszek

    Jaszek No longer a newbie, moving up!

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    Can I borrow $1000 for new lighting equipment? lol
     
  3. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    Sure. If you don't have a credit card, try Bill Me Later or a personal loan with your local credit union.
     
  4. Kegger

    Kegger TPF Noob!

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    Here's one for ya.

    How would one achieve a super high contrast effect using only speedlights?
     
  5. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    In what situation? Outside? Inside? Backdrop? White or black?

    High contrast how? Between the subject and the environment? Underexpose the ambient and light the subject with several speed lights so that you get lots of highlights without blowing out any detail.

    It depends on what you're trying to shoot. Example?
     
  6. Kegger

    Kegger TPF Noob!

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    Outside, bright overhead sunlight. No reflectors, just speedlights, and using the popup flash to fore the strobes.
     
  7. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    You can try and underexpose the ambient.

    If you're shooting with strobes that allow wireless ETTL, you can use high speed sync.

    Shoot at the lowest possible ISO and at a high enough shutter speed so the ambient it maybe one or two stops underexposed then fire the strobes to expose "properly" You'll get a darker more dramatic background with a properly exposed subject.

    Like these?

    [​IMG]

    They were shot at about 3:00PM while it was still sunny out. I completely underexposed the surroundings while underexposing the sky by about two stops. One 580EX II was fired with a shoot through umbrella at camera left. The only light falling on the subjects is from the speed light, so that's why half of their faces are dark, even though it was still bright out.

    1/200 which is the x sync of my camera and f/10 to kill the ambient. Adjusted the strobe's exposure to match this.
     
  8. stsinner

    stsinner TPF Noob!

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    I'v got one for you-explain to me what it means to shoot at my camera's max sync speed and how I would program this. I've got only optical slaves, and sometimes I can't get them to fire.. I'm using on-board flash to fire them at 1/16 power, which works about 3/4 of the time.

    Thanks.
     
  9. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    Max sync = x sync. Just another way to say it.

    x sync is a property of the camera. It's the maximum shutter speed you can use while getting the entire flash pulse in an open frame. If you shoot faster, you'll get a bar across the exposure from where the shutter wasn't fully open when the flash fires.

    Understanding the Flash Sync Speed - Digital Photography Tips and Techniques
    Now this is somewhat correct. Cameras like the D70, D50, D40, Canon 1D, etc... have electronic shutters. They electronically turn the shutter on and off at higher shutter speeds which nulls the above. You can shoot at 1/4000 and still get light from the flash with these cameras.

    Opticals can be finnicky. What conditions are you generally shooting in?
     
  10. Hock

    Hock TPF Noob!

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    noob alert!


    What is TTL, and what is the difference between the differnt type of TTL's? I have heard of eTTL and TTL II, are there any others?


    /end noob alert
     
  11. lockwood81

    lockwood81 TPF Noob!

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    I know that TTL is "T"hrough "T"he "L"ens metering. Means the flash is metering for what the camera "sees", using the camera's meter.

    Someone else will need to expand on the other stuff.
     
  12. Village Idiot

    Village Idiot No longer a newbie, moving up!

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    Through The Lens.

    I means the camera meters the flash exposure through the lens and automatically adjust the flash power to exposure properly.

    E-TTL = Evaluative TTL. It uses the same evaluative metering sensor that's used for ambient.

    E-TTL II is the upgraded version. According to Wikipedia:
     

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