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Comments on Gigapan: NYC Skyline at Night

Gigapan Comments (5)

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  1. Tom Nelson

    Tom Nelson (October 18, 2010, 10:16AM )

    Before you spend time on another big gigapan, try this: shoot a blank surface with focus on infinity, using various f/stops. Check for evidence of vignetting. This will tell you if stopping down will solve the problem. If it doesn't, and you've got a version of Photoshop, you can use the test photos as filters to correct the vignetting. Send me a message if you want to know how. Tom

  2. Stoney Vintson

    Stoney Vintson (October 16, 2010, 02:13PM )

    I will be in town this week photographing the city. Mechanical vignetting ( caused by lens barrel ) can be reduced by stopping down ( increasing the aperture value ). Natural vignetting cos^4(b) is not reduced by stopping down. hugin.sourceforge.net/tech/icvs200 7_presentation.pdf Will open in
a new tab or windowAlso, ensure that you set your white balance to something other than AWB ( auto white balance ). If your camera has a Tungsten setting which aproximately 3400 kelvin that would be better. en.wikipedia.org/wiki/Color_temper ature Will open in a new tab or windowLow pressure sodium lighting is lower, Incandescent (tungsten) is the same and flourescent is a bit higher at about 4400 kelvin.

  3. Michael Hussey

    Michael Hussey (July 09, 2010, 12:11PM )

    I'm going to try this again with a higher F-Stop and see if that does the trick.

  4. Michael Hussey

    Michael Hussey (July 08, 2010, 06:18PM )

    I use a SLIK tripod -- works well. I believe the error was caused by an incorrect Metering Mode on the Sony. I think it might be a limitation of this camera....perhaps need to upgrade to an SLR and the new Gigapan unit.

  5. Tom Nelson

    Tom Nelson (July 08, 2010, 05:56PM )

    At least your tripod's nice and steady, Michael. Excellent sharpness. What caused the vignetting?