A&P long exposure shots?

Discussion in 'Lifestyle' started by sanwugi, Nov 19, 2008.

  1. sanwugi

    sanwugi New Member

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    i'm trying to take shots of subway stations, busy streets, etc. with long exposures, so that I might end up with a picture of the scene without any of hte people involved.

    how do i go about doing this?

    am i supposed to take one long shot, or should i take several shots and somehow(?) stich them together with photoshop?
     
  2. Jcolman

    Jcolman OT Supporter

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    One long (over several seconds) shot will give you the background and lights. People will end up as blurry streaks.
     
  3. shiba

    shiba Active Member

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    Set up tripod and camera, yell "BOMB", profit.
     
  4. adamlewis88

    adamlewis88 New Member

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    For best results, go to an airport
     
  5. turbodude

    turbodude Just a photographer OT Supporter

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    sit and wait.
     
  6. aCab

    aCab New Member

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    Depends on how much blur you want. You could probably get decent blur with an IS lens, so long as the things are moving fast enough.
     
  7. legendr34

    legendr34 Titanium Member

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    nd filter
     
  8. Das-Helmut

    Das-Helmut OT Supporter

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    you dont need IS to get a longer exposure shot to come out right. just a tripod.
     
  9. Jcolman

    Jcolman OT Supporter

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    I remember seeing a picture once of some famous painting. The photographer needed to set up his camera a ways back to shoot it but the problem was he couldn't shoot it before or after hours. There were dozens of people wandering around the gallery and he couldn't shoo them away from in front of his camera. His solution was to get the heaviest ND filter he could find and coupled it with some very slow film so he could shoot a 1/2 hr. (iirc) time exposure.

    The results were an incredible clear shot of the painting with no people in front of it since nobody would ever stand in place longer than a few minutes.
     
  10. turbodude

    turbodude Just a photographer OT Supporter

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    i was thinking teh same thing
     
  11. sanwugi

    sanwugi New Member

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    yeah i was thinking of doing something like this. can i do this with photoshop and stitch several pictures together to make it seem like i took one LONG exposure? i dont want ANY people in my pictures at all. and i dont really have the money to get myself an ND filter either :wtc:
     
  12. jared_IRL

    jared_IRL OT Supporter

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    there is another way to do this....

    set up your camera on a tripod. fire it 10 or so times and layer them, then remove the people by masking them out with images that don't have a person in that particular area.
     
  13. tetsuo

    tetsuo And shepherds we shall be...

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    this is what i was going to suggest. use a tripod and full manual settings so all the pictures are the same exposure.
     
  14. jared_IRL

    jared_IRL OT Supporter

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    yeah, guess i forgot to mention that... NOTHING can change between the frames. I'd even fire them off with a remote if you have one, just to make sure the camera isn't moved a mm between the shots.
     
  15. themolsen

    themolsen New Member

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    YES! this was my thought.

    I would be wary about doing a 30 minute exposure on a digital camera - jared's idea will work much better and will give you some Photoshop chops
     
  16. sanwugi

    sanwugi New Member

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    thanks guys i'll give that a try :)
     
  17. twinturboteddy

    twinturboteddy Bling Bling!

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    Super long exposure shots on a digital slr are a little diffitcult mainly because the sensor starts to create heat and results with a purple/pink haze over the image. On my D200 it starts around maybe 2 minutes.

    I had to stack a few dozen 30s shots to get something like this. I tried doing in one shot for almost 40 minutes and there was purple haze.
    [​IMG]
     
  18. adamlewis88

    adamlewis88 New Member

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    :nikon: Actually, to be more intellectually honest, :CCD:
     
  19. sanwugi

    sanwugi New Member

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    can you tell me how you made this shot? :x:
     
  20. themolsen

    themolsen New Member

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    what f-stop were you using for those shots you put together?
     
  21. EWhytsell

    EWhytsell New Member

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    Amp glow is what the purple haze is called due to it usually starting on the side of the chip that the amps are on.

    The space pics I post from time to time are composites of anywhere from 30 sec to 2 minute frames. Usually stacking at a minimum of 35 of them is required to average out the noise in the final image. When I get a second scope for guiding the main imager I'll be shooting frames as long as 8 minutes.

    You could also build a cooling box and put one of these in it http://shop.ebay.com/merchant/thermalenterprises
    The guys that do astrophotography in warmer areas use them with great success.
     
    Last edited: Nov 22, 2008
  22. twinturboteddy

    twinturboteddy Bling Bling!

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