My Autopano Pro forum

http://www.vrwave.com/panoramic/photogr … abase.html
This has the database of various lenses & camera combination.

360 Degree wrote:

digipano wrote:

http://www.vrwave.com/panoramic/photography/lens_database.html
This has the database of various lenses & camera combination.

Form the above database regarding my lens, how do I interpret this in practical terms, "Min. shots (1.5x): N, 10 images every 36° at -45° pitch, 10 images every 36° at 0° pitch, 10 images every 36° at +45° pitch, Z"
Thanks!

Interpret as follows:

For 360x180 coverage using a cropped sensor DSLR with 1.5x crop factor (ie. Canon) shoot 3 rows of 10 images - ie 10-around evenly spaced with 36 degree rotation between images in each of the three rows.

Top row - shoot at an upward tilit (pitch) of -45 dgrees.
Middle row - shoot at zero degrees pitch.
Bottom row - shoot at -45 degrees tidownward tilit (pitch).

Plus Z(enith) shot at say +90 degress; and N(adir) shot at -90 degress, this usually shot with camera removed from the pano head.

OK? This all rather assumes that you have a proper pano head!

Last edited by mediavets (2008-08-01 18:37:06)

If you are patient enough, this (rather intricated) calculator will answer a very large number of questions:

  http://www.frankvanderpol.nl/fov_pan_calc.htm

Its main weak point: it don't take into account the fact that the closest you are from zenith or nadir the less image amount you need in the corresponding row.

First screen capture show a possible arrangement for 360° x 180° using a 28mm equiv. lens (3 for zenith and nadir - 12 for the horizon - 6 between - 30 total, worked fine!)

Second screen capture shows a possible (but untested yet) arrangement I devised using APP Move tool: source images don't match because they were moved but it shows that a 25 images total should work... Using APP Move tool needs some practice but is a very powerful tool to investigate new arrangements.

Another difficult problem is found when one want to use planar projection: more source images are needed above the center point than along the left and right panorama sides (because images distant from the center point are more stretched.) Corresponding computations look like a trigonometric nightmare but being warned helps to add some shoots "above the middle of the pano" because, who know, they could be useful...

Te moques pas!

Depuis l'autre jour j'ai fait des essais et un 360 x 180 en un peu plus de 20 photos me parrait nettement plus problématique avec un 28mm à cause du ciel (ou des plafond blancs en intérieur.) Faudra revoir ça quand les templates seront disponibles mais en attendant il faut un sujet qui s'y prête. Avec un équivalent 24 mm ou moins par contre ça devient très jouable parce que la rangée la plus haute avant celle du zénith est facile à ancrer près de l'horizon (mais peu de gens disposent de ce genre de focale, et ça va pas s'arranger avec la mode du FF pour laquelle ce type de zoom coûte la peau des fesses.)

Si tu as envie de faire un essais avec la Merlin et ton zoom 17-j'sais_plus_quoi mm, j'ai modifié la formule que je t'avais envoyée, si ça t'intêresse... (et ça devrait, parce que si ça marchait il n'y aurait plus de raison de ne pas choisir le fisheye le plus "englobant" possible: ça donne une alternative à un tel fisheye pour les cas pépères.)