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GORDON & JOHNS by FOREST HUNTER

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About This Gigapan

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Taken by
FOREST HUNTER FOREST HUNTER
Explore score
95
Size
0.94 Gigapixels
Views
2422
Date added
Dec 26, 2009
Date taken
Dec 25, 2009
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Description

This is up for comments about how to eliminate vignetting (?)


Gigapan Comments (2)

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  1. Paul Heckbert

    Paul Heckbert (December 27, 2009, 03:44PM )

    Reducing the aperture, as mrpiv suggested, should help. You could also increase the overlap. Typically the Gigapan Imager shoots with 30%-40% overlap. If you do "Gigapan Setup" you could reduce the field of view and thereby get overlap of 50% or more. That would help, also. The disadvantage is that you'll shoot more pictures to capture the same panorama, however.

  2. David Pivin

    David Pivin (December 27, 2009, 09:49AM )

    Forest, First thing I noticed was that you shot at f/4.3 on this pano. Vignetting will be reduced significantly by shooting at f/8, which I believe is the maximum available on the SX120. I noticed you had used f/8 on some of your previous panos with an SX110 with no vignetting problems. Hopefully you have the opportunity to re-shoot. But since you have already shot this, you may be able to reduce the vignetting effects a bit by selecting the option to use a larger blending region and re-stitch. I am currently using an SX110 which only differs in Mpx, 9.1 vs. 10 compared to the SX120 and I get good results and always try to shoot f/8. Previously I had used an SD400 which had vignetting problems even at f/10. MrPiv

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Stitcher Notes

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GigaPan Stitcher version 0.4.3864 (Windows)
Panorama size: 935 megapixels (77326 x 12099 pixels)
Input images: 180 (30 columns by 6 rows)
Field of view: 128.8 degrees wide by 20.2 degrees high (top=12.3, bottom=-7.9)
Settings:
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot SX120 IS
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2009-12-25 15:08:33 - 2009-12-25 15:21:51
Aperture: f/4.3
Exposure time: 0.001
ISO: 80
Focal length (35mm equiv.): 361.4 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 27.8 to 32.7 percent
Vertical overlap: 31.2 to 33.3 percent
Computer stats: 3032.29 MB RAM, 2 CPUs
Total time 2:30:51 (0:50 per picture)
Alignment: 35:56, Projection: 13:15, Blending: 1:41:39

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