Nodal Point - Revision history

Erik Krause at 18:46, 30 March 2010

2010-03-30T18:46:15Z

Erik Krause at 18:35, 30 March 2010

2010-03-30T18:35:39Z

Erik Krause at 18:35, 30 March 2010

2010-03-30T18:35:14Z

Erik Krause: Redirected page to No-parallax point

2010-03-30T18:32:05Z

Redirected page to No-parallax point

Erik Krause: typo

2007-11-18T14:55:09Z

typo

Erik Krause at 14:54, 18 November 2007

2007-11-18T14:54:27Z

WikiSysop: 7 revision(s)

2006-07-13T20:24:39Z

7 revision(s)

WikiSysop: 1 revision(s)

2006-07-13T19:55:20Z

1 revision(s)

Erik Krause: redirected to no-parallax point

2005-12-30T20:56:42Z

redirected to no-parallax point

Erik Krause: redirected to no-parallax point

2005-12-30T20:56:42Z

redirected to no-parallax point

New page

#REDIRECT [[no-parallax point]]

← Older revision		Revision as of 18:46, 30 March 2010
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−	{{Glossary\|~~Wrong name~~ for the [[Entrance pupil]] or the [[No-parallax point]].\|1}}	+	{{Glossary\|Wrongly used for the [[Entrance pupil]] or the [[No-parallax point]].\|1}}
		+
		+	The real nodal points have no relevance for panoramic photography. See Wikipedia for details: [[w:Nodal point]]

← Older revision		Revision as of 18:35, 30 March 2010
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−	{{Glossary\|Wrong name for the [[Entrance pupil]] or [[No-parallax point]].\|1}}	+	{{Glossary\|Wrong name for the [[Entrance pupil]] or the [[No-parallax point]].\|1}}

← Older revision		Revision as of 18:35, 30 March 2010
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−	~~#REDIRECT [[no-parallax point]]~~	+	{{Glossary\|Wrong name for the [[Entrance pupil]] or [[No-parallax point]].\|1}}
−	{{Glossary\|~~The special point that you have to rotate your camera around, to avoid [[parallax]] errors. Better called~~ [[Entrance pupil]] or [[No-parallax point]].}}	+

← Older revision		Revision as of 18:32, 30 March 2010
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−	~~{{Glossary\|The special point that you have to rotate your camera around, to avoid [[parallax]] errors. Better called [[Entrance pupil]] or [[No-parallax point]].}}~~
	#REDIRECT [[no-parallax point]]		#REDIRECT [[no-parallax point]]
		+	{{Glossary\|The special point that you have to rotate your camera around, to avoid [[parallax]] errors. Better called [[Entrance pupil]] or [[No-parallax point]].}}

← Older revision		Revision as of 14:55, 18 November 2007
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−	{{Glossary\|The special point that you have to rotate your camera around, to avoid [[parallax]] errors. Better called [[Entrance ~~Pupil~~]] or [[No-parallax point]].}}	+	{{Glossary\|The special point that you have to rotate your camera around, to avoid [[parallax]] errors. Better called [[Entrance pupil]] or [[No-parallax point]].}}
	#REDIRECT [[no-parallax point]]		#REDIRECT [[no-parallax point]]

← Older revision		Revision as of 14:54, 18 November 2007
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		+	{{Glossary\|The special point that you have to rotate your camera around, to avoid [[parallax]] errors. Better called [[Entrance Pupil]] or [[No-parallax point]].}}
	#REDIRECT [[no-parallax point]]		#REDIRECT [[no-parallax point]]

← Older revision	Revision as of 20:24, 13 July 2006
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-If you rotate your camera around some randomly chosen point, your images will have [[parallax]] and your stitches will be bad.
+#REDIRECT [[no-parallax point]]
-−
-With most lenses, there is one special point around which you can rotate your camera and get '''no parallax'''.
-−
-In the panorama photography community, that special no-parallax point is called the '''"nodal point"''' or '''"entrance pupil".'''
-−
-Periodically there is debate about what it ''ought'' to be called.  In the physics and optics communities, the term "nodal point" means something else entirely, a place in the optical path that is of no significance to most photographers.  Those communities have no special name for the no-parallax point, and their term "entrance pupil" properly refers to a region around the no-parallax point, rather than the point itself.  (The entrance pupil is the image of the limiting aperture or diaphragm, as seen through the front of the lens.)  ''Sigh...''
-−
-Everything considered, the best term for the no-parallax point is probably "entrance pupil". But if you do say "nodal point" while talking about panoramas, everyone will understand what you mean.
-−
-Regardless of what you call the no-parallax point, it is easily found by trial and error.  Just adjust the rotation point so that foreground and background points stay lined up.
-−
-Some lenses, notably fisheyes, do not have a single no-parallax point because the location of the entrance pupil depends on the angle away from the lens axis.  With such lenses, it is good to pick one angle at which you like to stitch, and rotate your camera around a point that gives no parallax at that angle.
-−
-To facilitate finding the no-parallax point for other people, please fill the measurements you have found for your Camera / Lens / Focal Length combination in the [[Entrance Pupil Database]]
-−
-== Links ==
-−
-Big Ben's Panorama Tutorials, [http://www.path.unimelb.edu.au/~bernardk/tutorials/360/photo/nodal.html Determining the Nodal Point of a Lens].
-−
-Kaidan, [http://www.kaidan.com/nodalpoint.html How to Find Your Camera's Nodal Point].
-−
-Alain Hamblenne, [http://www.outline.be/quicktime/tuto/ The Grid]
-−
-[http://michel.thoby.free.fr/ Michel Thoby], especially [http://michel.thoby.free.fr/SIGMA8mm/Alpha%20test%20300D/Nodal%20point%20of%20SIGMA%208mm.html Nodal point location for the SIGMA 8mm f:4 lens], which describes an interesting approach using a laser pointer.
-[[Category:Glossary]]