Re: [hugin-ptx] No-parallax point with zoom lens?
Thomas Pryds wrote: Hi I've been searching the web and found a lot of resources on finding the no-parallax point of a camera/lens and on pano heads and weights on strings to help rotate the camera around this point. One question I didn't find an answer to, though: If you're using a zoom lens, does zooming move the no-parallax point? In other words, if I were to build a fixed position pano head, would it lock me into using one particular zoom level, e.g. 18 mm? Yes. But. Since most people would ant the widest possible lens, you're very likely to be locked at the widest end of your zoom lens, so a fixed pano head matched to this will (in practice) be fine. Further, even if you were to be using your zoom at a longer setting, you're likely to be further from your subject, and thus the parallax error will (probably...) be acceptable. BugBear -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
[hugin-ptx] No-parallax point with zoom lens?
Hi I've been searching the web and found a lot of resources on finding the no-parallax point of a camera/lens and on pano heads and weights on strings to help rotate the camera around this point. One question I didn't find an answer to, though: If you're using a zoom lens, does zooming move the no-parallax point? In other words, if I were to build a fixed position pano head, would it lock me into using one particular zoom level, e.g. 18 mm? Thanks, Thomas -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
Re: [hugin-ptx] No-parallax point with zoom lens?
On Sat 03-Sep-2011 at 17:13 +0200, Thomas Pryds wrote: I've been searching the web and found a lot of resources on finding the no-parallax point of a camera/lens and on pano heads and weights on strings to help rotate the camera around this point. One question I didn't find an answer to, though: If you're using a zoom lens, does zooming move the no-parallax point? Usually yes, zooming will move the no-parallax point. You can see this by looking at the lens from outside, the no-parallax point is where the aperture appears to be when you look into the lens from the front. If zooming (or even focusing) moves the apparent position of the aperture then you want to adjust the pano-head for each setting. -- Bruno -- You received this message because you are subscribed to the Google Groups Hugin and other free panoramic software group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
