Long Exposure

Discussion in 'Photography Beginners' Forum' started by tanz1983, Jun 18, 2008.

  1. tanz1983

    tanz1983 TPF Noob!

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    Ok, I did search, but there is so much that I can't make it through everything. How do you take a long exposure during evening hours? I try to get motion blurred shots of water from long exposure, but anything over a second, even in the evening light and on ISO 100 with the highest apature, it comes out way too over-exposed.
     
  2. Phazan

    Phazan TPF Noob!

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    You wait for the sun to go down!

    ...but seriously...

    you can buy a neutral density filter, or a polarizer could help too... Other than that, there really isn't anything you can do about it. =/
     
  3. Battou

    Battou No longer a newbie, moving up!

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    Filters....Bigger slower lenses with smaller apritures or a combination thereof
     
  4. LaFoto

    LaFoto Just Corinna in real life Staff Member Supporting Member

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    Filters which will be similar to sunglasses for lenses will be your choice so you get the exposure right even when you want to expose for longer than would be needed with the given light. Those would be your first choice, before you go get yourself bigger and slower lenses (my purse would certainly tell me to first look for FILTERS ... lenses are only a dream! ;))
     
  5. AndrewG

    AndrewG TPF Noob!

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    <aperture>:)
     
  6. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Are you using your meter? You can't just arbitrarily set a long shutter speed and small aperture...you still need to meter the light to know if those settings will overexpose the photo.

    I suggest using Av mode and setting the smallest aperture (F22, F29 etc) and the lowest aperture. The camera will then give you the shutter speed that will work. If it's not long enough for your needs, then (as others have said) you could use a filter.

    Also, moving/splashing water usually produces air and looks white. So when you use a long shutter speed, it just turns into a big white blob....which is hard not to overexpose.
     
  7. christopher walrath

    christopher walrath No longer a newbie, moving up!

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    A polarizer would bring down the intensity of the light but it would also remove any surface reflections for any non-metallic surfaces (water, etc.). Bear this in mind. It would do the trick but if you want any blurred reflections then ND's are the way to go.
     
  8. tanz1983

    tanz1983 TPF Noob!

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    I'll have to look into a neutral density. I have a polarizer, but it just doesn't seem dark enough.
     
  9. Battou

    Battou No longer a newbie, moving up!

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    You can always stack if you need to.
     
  10. Helen B

    Helen B TPF Noob!

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    You can use two polarizers as a variable neutral density filter. There are caveats, however. Here is a link to an earlier thread that explains more.

    Best,
    Helen
     
  11. christopher walrath

    christopher walrath No longer a newbie, moving up!

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    Yeah, I have been able to make 1 sec. + exposures on bright sun shiny days stacking a NDx2/4/8 to lower the incoming light allowing longer shutter speeds without increasing exposure.
     

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