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(June 15-21, 2007)

Clemens Pfeiffer, MBA

Coral Reef Community in Schoenbrunn

Seb Perez-Duarte

48 Parisian Panographers

Paris, France

2007-06-16 10:38

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© 2007 Seb Perez-Duarte, All Rights Reserved.

The 3rd meeting of Parisian Equirectangularists. Gadl, Manu, Alexis and I met in the Jardins de l'Atlantique, a rather modern public garden surrounded by buildings on top of the Gare Montparnasse, in Paris.

The four of us are members of a small community of spherical panographers in flickr. We contribute regularly to the Equirectangular group (of the 235 equirectangular panoramas uploaded to flickr in the Ile-de-France region -as of June 23- 233 were shot by one of us) and decided to meet once in a while. The Community event provided a very nice excuse to get together once more. I was lucky to be in Paris during the week before solstice, but the weather wasn't with us that morning.

This was shot in a small courtyard, with almost circular walls (you can see it in Google Maps). Gadl, Manu and Alexis were kind enough to pose 19 times for this panorama (in the end only 16 images were kept). Do you really believe the title of this image, or can you see who is missing? or who do you think is the 48th panographer?

This panorama uses a very subtle trick to show 720 degrees worth of panorama inside the standard spherical 360° panorama (I've done this before). It is not the simple matter of gluing two panoramas together, since an equirectangular image has to be 2:1 in proportions. It is also not possible to simply resize the image to the correct aspect ratio, since this would squish the persons and transform them into El Greco characters. Some mathematics are required to find the transformation that can keep all shapes correctly but that can still fit the two turns into one. This is the topic of conformal mappings, that I discuss in more detail in my flickr set.

Europe / France

Lat: 48° 50' 21.79" N
Long: 2° 19' 9.6" E

→ maps.google.com [EXT]

Precision is: High. Pinpoints the exact spot.

Nikon D200; Nikkor 10.5mm f/2.8 fish-eye; Cable Remote Release

Manfrotto 055PROB; Nodal Ninja 3 panoramic head

Sitched with Hugin and enblend, tweaking in The Gimp, conformal transformation done in Mathmap (Gimp plugin)

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