Gull Scouts

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    (Cross-view stereograph.)

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    1. ZADRO ages ago | reply

      Wow Roger, how'd you get this shot? Exif file would explain...

    2. roger_harris ages ago | reply

      Mainly, I got it by a lot of trying. :-) This kind of shot is a little tough with StereoDataMaker (SDM), due to the focusing being a separate step (and the cameras won't be sync'ed unless you wait for both cameras to be ready). With these birds flying toward me, if I had waited until I saw them, they would have been gone by the time the cameras were ready to shoot. The only way to get around that is by anticipating where you will be shooting and focusing on some other object at that distance. (And of course it needs to be in an area with lighting similar to where you will shoot.) In this case, I focused on a nearby beach umbrella and tried to shoot when the gulls were at that same distance. It took a bit of patience, but the "sports mode" in SDM version 1.7 was a big help.

      Another thing I've learned about getting "action shots" is that using the LCD on a point-and-shoot to try to track moving objects has a very low probability of success -- you really need an optical viewfinder. So my advice to anyone interested in getting a pair of Canons to use SDM is to get one of the models that have an OVF.

      Anyway, here's the EXIF from one photo (other was the same):

      Camera Make: Canon
      Camera Model: Canon PowerShot A650 IS
      Image Date: 2008:06:02 14:43:08
      Flash Used: No
      Focal Length: 44.4mm
      CCD Width: 7.39mm
      Exposure Time: 0.0013 s (1/800)
      Aperture: f/4.8
      ISO equiv: 80
      White Balance: Auto
      Metering Mode: Matrix

      (EDIT: One thing I should have mentioned about this shot is that the gulls were flying 8 or 10 feet above the beach, and the nearly-white sand was providing a lot of scattered, indirect light. That effect sort of looks like a studio shoot, doesn't it? I had noticed that in some other gull photos, so when I was trying to get the close-ups, I tried to shoot in a direction that optimized that effect.)

    3. -ytf- ages ago | reply

      Patience pays: excellent shot.

    4. bright airplane [deleted] ages ago | reply

      Yeah this is so visually rewarding to view in 3D.

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