Well that's a pretty sweet deal. 2008/9/11 Paul Stenquist <[EMAIL PROTECTED]>: > I can't use a fisheye. The company that produces these virtual tours > has very specific guidelines. I have to shoot vertical with a 17mm > rectilinear lens and 30% overlap. (I'll use the DA* 16-50 or the DA > 12-24.) Three bracketed shots at each position. Best quality jpegs. I > upload the shots to their FTP site. They do the rest. If it works out > as they say, it will be a nice bit of extra cash. If not, I'll have a > nice panoramic head, and I can have some fun with it. > Paul > On Sep 10, 2008, at 7:59 PM, David Savage wrote: > >> I've only done 1 full 360 spherical pano: >> >> <http://www.arach.net.au/~savage/Misc/360%20Test.mov> >> >> I've Never really had the need or desire to do more of them. >> >> Firstly I would have recommended the Panosaurus: >> >> <http://gregwired.com/pano/Pano.htm?gclid=CL724t6u0pUCFSJIagodTViShw> >> >> ...or the Nodal Ninja: >> >> <http://www.nodalninja.com/> >> >> Both are cheaper than the Manfrotto product, & the NN is more compact. >> But done is done. >> >> Secondly, I'm assuming that these are for a real estate website so >> ultimate resolution isn't a huge factor. Given that you are >> potentially going to be doing these regularly, consider picking up the >> 10-17 FE. It'll save time in the long run. >> >> Thirdly, finding the nodal point isn't hard, but it can be fiddly. The >> method I've used in the past, was recommended to me by Rob Studdert & >> works well. All you need is a length of string weighted at one end. I >> tied it to a light fixture & set up the camera about 1m (3') away from >> the string lining the camera up so that the string is in line with >> another straight vertical feature (a door frame). >> >> Ensure that the tripod is correctly levelled. I don't use the level >> built into the tripod, I use a separate bulls eye level I bought from >> a hardware store. Once the tripod is level, level the camera. I use a >> hot shoe mounted 2 axis spirit level. Using the heads adjustments get >> the 2 axis level, rotate the camera 90 degrees & check & adjust as >> needed. (if you end up doing lots of these investing in a levelling >> head may be a good bet) >> >> Now that the rig is levelled check that the string & door frame are >> still aligned. If so, focus on infinity and rotate the camera so that >> the string is at the extreme edge of the frame. If parallax error is >> evident, it'll show as separation between the edge of the droor frame >> & string. Adjust the forward & aft slide to compensate. now rotate the >> head so that the string is at the other extreme edge. >> >> Now once you are in the ball park, I recommend (as was recommended to >> me) taking 3 photos at each setting. Centred, extreme left, extreme >> right. not down shot numbers & slide settings. In Photoshop import all >> 3 shots into the same file, overlay them so that the string is aligned >> & check the results. When you find the set of images with no offset >> between the string & door frame, you've found your nodal point >> setting. >> >> The reason for this step is that you can't guarantee that your eye, >> when looking through the viewfinder, is always in the same spot, so >> you may introduce a second set of parallax errors if you just do it by >> eye. >> >> Now I need to hurry up so I'm not late for work :-) >> >> Cheers, >> >> Dave >> >> >> >> 2008/9/11 Paul Stenquist <[EMAIL PROTECTED]>: >>> I applied for a gig shooting virtual reality tours of houses. The job >>> should generate about ten assignments a month. To get a shot at it, I >>> had to say I had a panorama head. Shortly after sending an e-mail >>> application I received a call asking me to shoot a test by Friday. So >>> I had to order a panorama head immediately with overnight delivery. I >>> have to shoot vertical with a 17mm focal length, and, based on what >>> I've read, It seems I need a head that will allow me to adjust for >>> the nodal point with wide angle lenses. I took a quick look around >>> and bought a Bogen / Manfrotto 303PLUS QTVR Geared Panoramic Head. >>> It's here: >>> http://www.bhphotovideo.com/c/product/293641-REG/ >>> Bogen_Manfrotto_303PLUS_303PLUS_QTVR_Geared_Panoramic.html. >>> Has anyone used this head? How hard is it to locate the nodal >>> point? Learning on the fly here. >>> Paul >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above >>> and follow the directions. >>> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above >> and follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. >
-- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
