[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: nodal point position

Subject: Re: nodal point position
From: Geoff Jagoe and Barb de la Hunty <email@hidden>
Date: Sat, 1 Sep 2001 01:43:59 +0800

At 5:22 PM -0700 on 30/8/01, you wrote:

Message: 12
Date: Thu, 30 Aug 2001 13:41:58 -0700
From: Ted Oliverio <email@hidden>
Cc: QTVR subscribers <email@hidden>
Subject: Re: Nodal point with a fisheye?
I'm not sure about your particular camera or lens combination, but I've
never seen a rig where what you describe is true.

Typically, the nodal point is at the very-very front of the exposed
surface (i.e., film or CCD).  We typically use The Parallax Test to find


G'day Ted

are you talking only fisheyes, or generally? On my 17-35 zoom, the nodal point is well away from the film plane. Also have a look at the picture of the Spheron PanoCam 12F with a fisheye lens on it - the camera is set well back so the lens can be over the point of rotation. See http://www.spheron.com . Two very different cameras but they follow the same rule.

Cheers
Geoff
--
=========================================================
                      Geoff Jagoe & Barb de la Hunty
                        Mastery Multimedia Pty Ltd
                           A.B.N: 63 066 766 809

QuickTime VR Authoring, Object and Panorama Creation
Multimedia and web content * Final Cut Pro specialists
Kaidan * VRToolbox * Squamish  * Apple * ProMAX

Voice: 08 9364 2134 * Fax: 08 9315 9334
web: http://www.mastery.com.au

Follow-Ups:
- Re: nodal point position
  - From: Ted Oliverio <email@hidden>

Prev by Date: Re: win vs mac QTVR
Next by Date: Re: Nodal point with a fisheye?
Previous by thread: Re: win vs mac QTVR
Next by thread: Re: nodal point position
Index(es):
- Date
- Thread

Home