A&P What caused this white spot? + Tips on night time city shots

Discussion in 'Lifestyle' started by AmosBanks, Nov 25, 2008.

  1. AmosBanks

    AmosBanks New Member

    Joined:
    Aug 19, 2004
    Messages:
    923
    Likes Received:
    0
    Location:
    Chicago, IL
    Winter is a great time to shoot photos of major cities. It starts to get dark by 5pm and most lights are still on in the buildings. I shot a bunch of photos from a rooftop just south of the Loop and here is one of them

    [​IMG]

    A few questions:
    Is it best to wait for a cloudless night or is there a way to get good results despite the clouds?
    Is is best to do long exposures at low ISOs or is there a better method? (I shot this with the camera on timer and propped on a pebble)
    What caused the white spot? I shot almost a dozen shots and this was the only one with a spot.

    Time for a crazy Chicago story: I live in Chicago. My wife and I were downtown and on a whim we went on the touristy Chicago Ghost Tour. It's on a black school bus. We went to the site of the Eastland disaster http://tinyurl.com/6cmgx3 . We also drove by the morgue used to store the bodies (Harpo Studios present day), the Hull House (site of the inspiration behind the story of Rosemary's baby), the starting point for the Great Chicago Fire and the site of the St. Valentine's Day Massacre.

    Whenever we got off the bus the tour guide told everybody to take as many photos as possible of everything we see. He asked us to examine our photos. The guide said the gray spots are ghosts of the people from the various disasters. The above photo is the only time since then that I've ever taken a photo that had a spot on it.

    Sorry for the long story, but I thought this photo could answer two of my questions at once!
     
  2. siniquezu

    siniquezu New Member

    Joined:
    Aug 8, 2003
    Messages:
    8,669
    Likes Received:
    0
  3. Perkwunos

    Perkwunos Dog Bones OT Supporter

    Joined:
    Aug 24, 2004
    Messages:
    10,625
    Likes Received:
    0
    Location:
    Abu Dhabi, UAE
    The spot is Lens flare or condensation/dust
     
  4. Kirk Hinrich

    Kirk Hinrich New Member

    Joined:
    Sep 20, 2004
    Messages:
    40,492
    Likes Received:
    0
    Location:
    Brown Line
    The spot is most likely due to ghosts
     
  5. alexromo

    alexromo New Member

    Joined:
    Jul 10, 2005
    Messages:
    4,571
    Likes Received:
    0
    Location:
    Wahiawa
    dude why the fuck are you shooting 1/3 shutter speed?
     
  6. Jcolman

    Jcolman OT Supporter

    Joined:
    Aug 19, 2002
    Messages:
    43,114
    Likes Received:
    82
    Location:
    east coast
    Lens flare, condensation, dirt. Take your pick. Use a tripod next time. Your shot is too blurry.
     
  7. wizeguy4

    wizeguy4 New Member

    Joined:
    Apr 5, 2002
    Messages:
    2,454
    Likes Received:
    0
    Location:
    Allentown, PA
    yep - its a ghost
     
  8. Twisted STi

    Twisted STi All wheel or no wheel OT Supporter

    Joined:
    Dec 17, 2004
    Messages:
    12,254
    Likes Received:
    0
    alien ghost
     
  9. AmosBanks

    AmosBanks New Member

    Joined:
    Aug 19, 2004
    Messages:
    923
    Likes Received:
    0
    Location:
    Chicago, IL
    What do you suggest?
     
  10. GregFarz78

    GregFarz78 New Member

    Joined:
    Oct 28, 2002
    Messages:
    64,128
    Likes Received:
    0
    Location:
    Philly, PA
    get a tripod, longer exposure
     
  11. f/2.8L

    f/2.8L New Member

    Joined:
    Oct 1, 2004
    Messages:
    4,762
    Likes Received:
    0
    Location:
    404
    All above posts are incorrect. I have consulted with my consultants and we have unanimously concluded that you have indeed captured a UFO in your photo.
     
  12. shiba

    shiba Active Member

    Joined:
    Feb 10, 2006
    Messages:
    1,716
    Likes Received:
    0
    God's butthole
     
  13. aCab

    aCab New Member

    Joined:
    Jun 1, 2007
    Messages:
    18,292
    Likes Received:
    0
    Location:
    Chicaaago
    It's the air bubble from the liquid in the lens. If you use a slow shutter speed (like you did) without a tripod, the bubble will move slightly and the sensor will pick up that movement. Normally, with a quicker shutter speed, the bubble won't move enough to make it noticeable. It's odd that it's so large of a spot though. Is that a crop? How old is your lens? Your lens could have a leak, causing the bubble to be larger and thus, more apparent. Maybe you should get a lens leak down check? That's what I'd do first at least.
     
  14. Jcolman

    Jcolman OT Supporter

    Joined:
    Aug 19, 2002
    Messages:
    43,114
    Likes Received:
    82
    Location:
    east coast

    :bowdown: damn...I should have thought of that first. I was thinking that it could be a result of the de-pixalation of the anti-glare coating on the shutter sub mirror assembly. Either that or the it's circle of confusion doppler shift effect due to the high number of halogen lights in the subject matter.
     
  15. f/2.8L

    f/2.8L New Member

    Joined:
    Oct 1, 2004
    Messages:
    4,762
    Likes Received:
    0
    Location:
    404
    Oh fuck! :rofl:
     
  16. AmosBanks

    AmosBanks New Member

    Joined:
    Aug 19, 2004
    Messages:
    923
    Likes Received:
    0
    Location:
    Chicago, IL
    I took the camera to take photos of my kids at their Little Gym class. Realized I was in a good location to attempt city shots so I went to the top floor of the parking garage, propped the camera the best I could and I took a dozen shots. This one shot was the only picture with the spot.

    As I said in my ghost story, the tour guide asked a busload of people to shoot away. One lady had a shot with five of those spots in one photo. Nobody else had more than one in a photo.

    Nikon 18-135 lens purchased in March. Almost 1000 on the counter since then. It's not an air bubble.

    I will use a tripod next time. Thanks everybody!
     
  17. SkyAce2004

    SkyAce2004 New Member

    Joined:
    Mar 1, 2005
    Messages:
    5,497
    Likes Received:
    0
    Location:
    Florida
    did u have a filter on the lens?

    if so, take it off for night shots.
     
  18. MSIGuy

    MSIGuy om nom nom nom!

    Joined:
    May 30, 2005
    Messages:
    4,724
    Likes Received:
    0
    We know... :mamoru:
    Won't fix the flare issue.
     
  19. AmosBanks

    AmosBanks New Member

    Joined:
    Aug 19, 2004
    Messages:
    923
    Likes Received:
    0
    Location:
    Chicago, IL
    I have a UV filter. Will removing it fix the flare? If you guys want to reply with top 3 tips that would be cool. I'll try again on Monday when my kids have their next class.
     
  20. Climbing Cracker

    Climbing Cracker I am the Devil. And I am here to do the Devil's w

    Joined:
    Oct 13, 2001
    Messages:
    23,467
    Likes Received:
    0
    Location:
    Colorado, Los Angeles, Nairobi
    :noes:
     
  21. nastyboy132

    nastyboy132 New Member

    Joined:
    Aug 17, 2004
    Messages:
    1,509
    Likes Received:
    0
    it's really bigfoot doing a barrel roll off of a building.
     
  22. Jcolman

    Jcolman OT Supporter

    Joined:
    Aug 19, 2002
    Messages:
    43,114
    Likes Received:
    82
    Location:
    east coast
    Take the UV filter off. Most likely you got a little condensation on it and that's what caused the spot.

    Use a tripod anytime you're shooting below 1/60 second.

    Look for interesting foreground objects or leading lines when shooting cityscapes.
     
  23. EWhytsell

    EWhytsell New Member

    Joined:
    Jun 16, 2008
    Messages:
    1,296
    Likes Received:
    0
    With cloudy cover you will end up with more red and more light hitting the shadows. Without clouds you'll get darker shadows and it will be harder to shoot the whole scene without blowing out the bright lights or clipping the shadows. It will depend more on what look your trying to go for really.

    The best time might be when a full moon is overhead or slightly behind you. Or possibly nicely broken cloud cover.
     
  24. Wheezer

    Wheezer OT Supporter

    Joined:
    Jul 1, 2002
    Messages:
    1,629
    Likes Received:
    0
    Location:
    Houston
    Here's why from your Exif:
    Code:
    #
    # Flash = Flash fired, auto mode, return light detected
    The flash reflected off some dust or water in the air close to the lens.
     

Share This Page